// BT // British Telecom

AS Name: BT

Organization: ORG-CNS3-RIPE

Registry: RIPE

Imports from (366)

AS3356 AS-LEVELTHREEEU AS1299 AS-TWELVE99 AS42 AS-PCH AS174 AS293 AS-ESNET AS577 AS680 AS-DFNTOWINISP AS702 AS-UUNETEURO AS714 AS719 AS766 AS-REDIRIS AS786 AS-JANETPLUS AS812 AS-ROGERS AS1120 AS-ACOSERV AS1257 AS-SWIPNET AS1267 AS-INFOSTRADA AS1273 AS-CW AS1547 AS1741 AS-FUNET AS1759 AS-SONERA AS1828 AS-UNITAS AS1853 AS-ACONET AS1901 AS-KQ AS1955 AS-HBONETEN AS2116 AS-CATCHCOM AS2497 AS-IIJ AS2603 AS-NORDUNET AS2611
... and 316 more

Exports to (203)

AS3356 AS-BT-EU AS1299 AS42 AS174 AS293 AS577 AS680 AS702 AS714 AS719 AS766 AS786 AS812 AS1120 AS1257 AS1267 AS1273 AS1547 AS1741 AS1759 AS1828 AS1853 AS1901 AS1955 AS2116 AS2497 AS2603 AS2611 AS2635 AS2686 AS2818 AS2852 AS2860 AS2906 AS3209 AS3223 AS3257 AS3292 AS3303 AS3304 AS3320 AS3333 AS3352 AS3491 AS3856 AS4134 AS4436 AS4589 AS4637
... and 153 more

aut-num: AS5400
as-name: BT
org: ORG-CNS3-RIPE
remarks: ---------------------------------------------
remarks: Upstreams:
remarks: ---------------------------------------------
import: from AS3356 action pref=20; accept AS-LEVELTHREEEU
import: from AS3356 action pref=100; accept ANY
export: to AS3356 announce AS-BT-EU
import: from AS1299 action pref=20; accept AS-TWELVE99
import: from AS1299 action pref=100; accept ANY
export: to AS1299 announce AS-BT-EU
remarks: ---------------------------------------------
remarks: Peers:
remarks: ---------------------------------------------
import: from AS42 action pref=20; accept AS-PCH
export: to AS42 announce AS-BT-EU
import: from AS174 action pref=20; accept AS174
export: to AS174 announce AS-BT-EU
import: from AS293 action pref=20; accept AS-ESNET
export: to AS293 announce AS-BT-EU
import: from AS577 action pref=20; accept AS577
export: to AS577 announce AS-BT-EU
import: from AS680 action pref=20; accept AS-DFNTOWINISP
export: to AS680 announce AS-BT-EU
import: from AS702 action pref=20; accept AS-UUNETEURO
export: to AS702 announce AS-BT-EU
import: from AS714 action pref=20; accept AS714
export: to AS714 announce AS-BT-EU
import: from AS719 action pref=20; accept AS719
export: to AS719 announce AS-BT-EU
import: from AS766 action pref=20; accept AS-REDIRIS
export: to AS766 announce AS-BT-EU
import: from AS786 action pref=20; accept AS-JANETPLUS
export: to AS786 announce AS-BT-EU
import: from AS812 action pref=20; accept AS-ROGERS
export: to AS812 announce AS-BT-EU
import: from AS1120 action pref=20; accept AS-ACOSERV
export: to AS1120 announce AS-BT-EU
import: from AS1257 action pref=20; accept AS-SWIPNET
export: to AS1257 announce AS-BT-EU
import: from AS1267 action pref=20; accept AS-INFOSTRADA
export: to AS1267 announce AS-BT-EU
import: from AS1273 action pref=20; accept AS-CW
export: to AS1273 announce AS-BT-EU
import: from AS1547 action pref=20; accept AS1547
export: to AS1547 announce AS-BT-EU
import: from AS1741 action pref=20; accept AS-FUNET
export: to AS1741 announce AS-BT-EU
import: from AS1759 action pref=20; accept AS-SONERA
export: to AS1759 announce AS-BT-EU
import: from AS1828 action pref=20; accept AS-UNITAS
export: to AS1828 announce AS-BT-EU
import: from AS1853 action pref=20; accept AS-ACONET
export: to AS1853 announce AS-BT-EU
import: from AS1901 action pref=20; accept AS-KQ
export: to AS1901 announce AS-BT-EU
import: from AS1955 action pref=20; accept AS-HBONETEN
export: to AS1955 announce AS-BT-EU
import: from AS2116 action pref=20; accept AS-CATCHCOM
export: to AS2116 announce AS-BT-EU
import: from AS2497 action pref=20; accept AS-IIJ
export: to AS2497 announce AS-BT-EU
import: from AS2603 action pref=20; accept AS-NORDUNET
export: to AS2603 announce AS-BT-EU
import: from AS2611 action pref=20; accept AS-BELNET
export: to AS2611 announce AS-BT-EU
import: from AS2635 action pref=20; accept AS2635
export: to AS2635 announce AS-BT-EU
import: from AS2686 action pref=20; accept AS-IGNEMEA
export: to AS2686 announce AS-BT-EU
import: from AS2818 action pref=20; accept AS-BBC
export: to AS2818 announce AS-BT-EU
import: from AS2852 action pref=20; accept AS-CESNET
export: to AS2852 announce AS-BT-EU
import: from AS2860 action pref=20; accept AS-NOVIS
export: to AS2860 announce AS-BT-EU
import: from AS2906 action pref=20; accept AS-NFLX
export: to AS2906 announce AS-BT-EU
import: from AS3209 action pref=20; accept AS-ARCORGLOBAL
export: to AS3209 announce AS-BT-EU
import: from AS3223 action pref=20; accept AS-VOXILITY-SET
export: to AS3223 announce AS-BT-EU
import: from AS3257 action pref=20; accept AS-TISCALI
export: to AS3257 announce AS-BT-EU
import: from AS3292 action pref=20; accept AS-TDCNET
export: to AS3292 announce AS-BT-EU
import: from AS3303 action pref=20; accept AS-SWCMGLOBAL
export: to AS3303 announce AS-BT-EU
import: from AS3304 action pref=20; accept AS-UBNBE
export: to AS3304 announce AS-BT-EU
import: from AS3320 action pref=20; accept AS3320:AS-DTAG
export: to AS3320 announce AS-BT-EU
import: from AS3333 action pref=20; accept AS3333
export: to AS3333 announce AS-BT-EU
import: from AS3352 action pref=20; accept AS-TDE
export: to AS3352 announce AS-BT-EU
import: from AS3491 action pref=20; accept AS-CAIS
export: to AS3491 announce AS-BT-EU
import: from AS3856 action pref=20; accept AS-PCH
export: to AS3856 announce AS-BT-EU
import: from AS4134 action pref=20; accept AS-CN
export: to AS4134 announce AS-BT-EU
import: from AS4436 action pref=20; accept AS-NLAYER
export: to AS4436 announce AS-BT-EU
import: from AS4589 action pref=20; accept AS-EASYNET
export: to AS4589 announce AS-BT-EU
import: from AS4637 action pref=20; accept AS4637
export: to AS4637 announce AS-BT-EU
import: from AS4766 action pref=20; accept AS-KORNET
export: to AS4766 announce AS-BT-EU
import: from AS4837 action pref=20; accept AS4837:AS-CNCNET
export: to AS4837 announce AS-BT-EU
import: from AS5432 action pref=20; accept AS-SKYNETBE
export: to AS5432 announce AS-BT-EU
import: from AS5459 action pref=20; accept AS5459
export: to AS5459 announce AS-BT-EU
import: from AS5511 action pref=20; accept AS-OPENTRANSIT
export: to AS5511 announce AS-BT-EU
import: from AS5610 action pref=20; accept AS-CTIOL
export: to AS5610 announce AS-BT-EU
import: from AS5650 action pref=20; accept AS-ELI
export: to AS5650 announce AS-BT-EU
import: from AS6079 action pref=20; accept AS-RCN
export: to AS6079 announce AS-BT-EU
import: from AS6407 action pref=20; accept AS-PRTL-CDN
export: to AS6407 announce AS-BT-EU
import: from AS6453 action pref=20; accept AS-GLOBEINTERNET
export: to AS6453 announce AS-BT-EU
import: from AS6461 action pref=20; accept AS-ABOVE
export: to AS6461 announce AS-BT-EU
import: from AS6507 action pref=20; accept AS6507
export: to AS6507 announce AS-BT-EU
import: from AS6661 action pref=20; accept AS-PTLU
export: to AS6661 announce AS-BT-EU
import: from AS6730 action pref=20; accept AS-GLOBAL
export: to AS6730 announce AS-BT-EU
import: from AS6762 action pref=20; accept AS-SEABONE
export: to AS6762 announce AS-BT-EU
import: from AS6774 action pref=20; accept AS-BELBONE
export: to AS6774 announce AS-BT-EU
import: from AS6805 action pref=20; accept AS-TDDE
export: to AS6805 announce AS-BT-DE
import: from AS6830 action pref=20; accept AS-AORTA
export: to AS6830 announce AS-BT-EU
import: from AS6848 action pref=20; accept AS-TELENET
export: to AS6848 announce AS-BT-EU
import: from AS6871 action pref=20; accept AS-PLUSNETUK
export: to AS6871 announce AS-BT-EU
import: from AS6881 action pref=20; accept AS-NIX
export: to AS6881 announce AS-BT-EU
import: from AS6939 action pref=20; accept AS-HURRICANE
export: to AS6939 announce AS-BT-EU
import: from AS7029 action pref=20; accept AS-WINDSTREAM
export: to AS7029 announce AS-BT-EU
import: from AS7132 action pref=20; accept AS-SBCIS-7132
export: to AS7132 announce AS-BT-EU
import: from AS7843 action pref=20; accept AS-ROADRUNNER
export: to AS7843 announce AS-BT-EU
import: from AS7922 action pref=20; accept AS7922
export: to AS7922 announce AS-BT-EU
import: from AS8075 action pref=20; accept AS-MICROSOFT
export: to AS8075 announce AS-BT-EU
import: from AS8068 action pref=20; accept AS-MICROSOFT
export: to AS8068 announce AS-BT-EU
import: from AS8210 action pref=20; accept AS-TELENOR
export: to AS8210 announce AS-BT-EU
import: from AS8220 action pref=20; accept AS-COLT
export: to AS8220 announce AS-BT-EU
import: from AS8283 action pref=20; accept AS-COLOCLUE
export: to AS8283 announce AS-BT-EU
import: from AS8365 action pref=20; accept AS-MANDA
export: to AS8365 announce AS-BT6
import: from AS8447 action pref=20; accept AS-PTA and AS-TA6
export: to AS8447 announce AS-BT-EU
import: from AS8473 action pref=20; accept AS-BAHNHOF
export: to AS8473 announce AS-BT-EU
import: from AS8487 action pref=20; accept AS-PHIBEE-TELECOM
export: to AS8487 announce AS-BT-EU
import: from AS8560 action pref=20; accept AS-SCHLUND
export: to AS8560 announce AS-BT-EU
import: from AS8674 action pref=20; accept AS-NETNOD
export: to AS8674 announce AS-BT-EU
import: from AS8866 action pref=20; accept AS-BTC-UP
export: to AS8866 announce AS-BT-EU
import: from AS8881 action pref=20; accept AS-VT-TRANSIT
export: to AS8881 announce AS-BT-EU
import: from AS8966 action pref=20; accept AS-EMIX
export: to AS8966 announce AS-BT-EU
import: from AS9002 action pref=20; accept AS-RETN
export: to AS9002 announce AS-BT-EU
import: from AS9009 action pref=20; accept AS-GBXS
export: to AS9009 announce AS-BT-EU
import: from AS9116 action pref=20; accept AS-GOLDEN
export: to AS9116 announce AS-BT-EU
import: from AS9121 action pref=20; accept AS-TTNET
export: to AS9121 announce AS-BT-EU
import: from AS9136 action pref=20; accept AS-WOBCOM
export: to AS9136 announce AS-BT-EU
import: from AS9318 action pref=20; accept AS9318
export: to AS9318 announce AS-BT-EU
import: from AS9193 action pref=20; accept AS-SPEEDPORT
export: to AS9193 announce AS-BT-EU
import: from AS9498 action pref=20; accept AS9498:AS-BHARTI-IN
export: to AS9480 announce AS-BT-EU
import: from AS9505 action pref=20; accept AS-TWIG
export: to AS9505 announce AS-BT-EU
import: from AS11164 action pref=20; accept AS-TR
export: to AS11164 announce AS-BT-EU
import: from AS11867 action pref=20; accept AS-PRTL
export: to AS11867 announce AS-BT-EU
import: from AS12189 action pref=20; accept AS-PHOENIXNAP
export: to AS12189 announce AS-BT-EU
import: from AS12389 action pref=20; accept AS-ROSTELECOM
export: to AS12389 announce AS-BT-EU
import: from AS12430 action pref=20; accept AS-VODAFONE-ES
export: to AS12430 announce AS-BT-EU
import: from AS12552 action pref=20; accept AS12552
export: to AS12552 announce AS-BT-EU
import: from AS12715 action pref=20; accept AS-JAZZTRANS
export: to AS12715 announce AS-BT-EU
import: from AS12741 action pref=20; accept AS-NETIA
export: to AS12741 announce AS-BT-EU
import: from AS12876 action pref=20; accept AS12876
export: to AS12876 announce AS-BT-EU
import: from AS12956 action pref=20; accept AS-TDATANET
export: to AS12956 announce AS-BT-EU
import: from AS13030 action pref=20; accept AS-INIT7
export: to AS13030 announce AS-BT-EU
import: from AS13335 action pref=20; accept AS-CLOUDFLARE
export: to AS13335 announce AS-BT-EU
import: from AS13445 action pref=20; accept AS-WEBEX
export: to AS13445 announce AS-BT-EU
import: from AS14061 action pref=20; accept AS14061
export: to AS14061 announce AS-BT-EU
import: from AS14907 action pref=20; accept AS-WIKIMEDIA
export: to AS14907 announce AS-BT-GLOBAL
import: from AS14340 action pref=20; accept AS14340
export: to AS14340 announce AS-BT-EU
import: from AS14361 action pref=20; accept AS-HOPONE
export: to AS14361 announce AS-BT-EU
import: from AS15169 action pref=20; accept AS-GOOGLE
export: to AS15169 announce AS-BT-EU
import: from AS15412 action pref=20; accept AS-FLAGP
export: to AS15412 announce AS-BT-EU
import: from AS15594 action pref=20; accept AS-NQ
export: to AS15594 announce AS-BT-EU
import: from AS15635 action pref=20; accept AS15635
export: to AS15635 announce AS-BT-EU
import: from AS15695 action pref=20; accept AS-EXPEREO
export: to AS15695 announce AS-BT-GLOBAL
import: from AS15830 action pref=20; accept AS-TELECITYGROUP
export: to AS15830 announce AS-BT-EU
import: from AS15965 action pref=20; accept AS-CEGECOM
export: to AS15965 announce AS-BT-EU
import: from AS16004 action pref=20; accept AS16004
export: to AS16004 announce AS-BT-EU
import: from AS16086 action pref=20; accept AS-FINNET
export: to AS16086 announce AS-BT-EU
import: from AS16097 action pref=20; accept AS-HLKOMM
export: to AS16097 announce AS-BT-EU
import: from AS16276 action pref=20; accept AS-OVH
export: to AS16276 announce AS-BT-EU
import: from AS16338 action pref=20; accept AS-AUNANET
export: to AS16338 announce AS-BT-EU
import: from AS16509 action pref=20; accept AS-AMAZON
export: to AS16509 announce AS-BT-EU
import: from AS19080 action pref=20; accept AS-WBS
export: to AS19080 announce AS-BT-EU
import: from AS19318 action pref=20; accept AS-NJIIX
export: to AS19318 announce AS-BT-EU
import: from AS19548 action pref=20; accept AS-ADELPHIA
export: to AS19548 announce AS-BT-EU
import: from AS19679 action pref=20; accept AS-DROPBOX
export: to AS19679 announce AS-BT-EU
import: from AS20473 action pref=20; accept AS-CHOOPA
export: to AS20473 announce AS-BT-EU
import: from AS20676 action pref=20; accept AS-QSC
export: to AS20676 announce AS-BT-EU
import: from AS20721 action pref=20; accept AS20721
export: to AS20721 announce AS-BT-EU
import: from AS20940 action pref=20; accept AS-AKAMAI
export: to AS20940 announce AS-BT-EU
import: from AS20965 action pref=20; accept AS-GEANTNRN
export: to AS20965 announce AS-BT-EU
import: from AS21277 action pref=20; accept AS-NT
export: to AS21277 announce AS-BT-EU
import: from AS21859 action pref=20; accept AS21859
export: to AS21859 announce AS-BT-EU
import: from AS22212 action pref=20; accept AS-INTERNAP
export: to AS22212 announce AS-BT-EU
import: from AS24875 action pref=20; accept AS24940
export: to AS24875 announce AS-BT-EU
import: from AS24940 action pref=20; accept AS24940
export: to AS24940 announce AS-BT-EU
import: from AS24961 action pref=20; accept AS-MYLOC
export: to AS24961 announce AS-BT-EU
import: from AS25152 action pref=20; accept AS25152
export: to AS25152 announce AS-BT-EU
import: from AS25973 action pref=20; accept AS-MZIMA
export: to AS25973 announce AS-BT-EU
import: from AS27319 action pref=20; accept as27319:AS-PEERS
export: to AS27319 announce AS-BT-EU
import: from AS29518 action pref=20; accept AS-BREDBAND2
export: to AS29518 announce AS-BT-EU
import: from AS29119 action pref=20; accept AS-SERVIHOSTING
export: to AS29119 announce AS-BT-EU
import: from AS29405 action pref=20; accept AS-VNET
export: to AS29405 announce AS-BT-EU
import: from AS30081 action pref=20; accept AS-CACHENETWORKS
export: to AS30081 announce AS-BT-EU
import: from AS30103 action pref=20; accept AS30103
export: to AS30103 announce AS-BT-EU
import: from AS30781 action pref=20; accept AS-JAGUAR
export: to AS30781 announce AS-BT-EU
import: from AS31027 action pref=20; accept AS-NIANET
export: to AS31027 announce AS-BT-EU
import: from AS31449 action pref=20; accept AS-BELCENTER
export: to AS31449 announce AS-BT-EU
import: from AS31529 action pref=20; accept AS-DENIC-ANY
export: to AS31529 announce AS-BT-EU
import: from AS32590 action pref=20; accept AS-VALVE
export: to AS32590 announce AS-BT-EU
import: from AS32787 action pref=20; accept AS-PROLE
export: to AS32787 announce AS-BT-EU
import: from AS32934 action pref=20; accept AS32934
export: to AS32934 announce AS-BT-EU
import: from AS33353 action pref=20; accept AS-GAIKAI
export: to AS33353 announce AS-BT-EU
import: from AS33891 action pref=20; accept AS-CORE-BACKBONE
export: to AS33891 announce AS-BT-EU
import: from AS34442 action pref=20; accept AS-XIFOS
export: to AS34442 announce AS-BT-EU
import: from AS35280 action pref=20; accept AS-F5
export: to AS35280 announce AS-BT-EU
import: from AS36119 action pref=20; accept AS-IMEEM
export: to AS36119 announce AS-BT-EU
import: from AS36351 action pref=20; accept AS36351
export: to AS36351 announce AS-BT-EU
import: from AS36692 action pref=20; accept AS-OPENDNS
export: to AS36692 announce AS-BT-EU
import: from AS37100 action pref=20; accept AS-SET-SEACOM
export: to AS37100 announce AS-BT-EU
import: from AS37468 action pref=20; accept AS-ANGOLACABLES
export: to AS37468 announce AS-BT-GLOBAL
import: from AS39737 action pref=20; accept AS-39737
export: to AS39737 announce AS-BT-EU
import: from AS39743 action pref=20; accept AS-VOXILITY-SET
export: to AS39743 announce AS-BT-EU
import: from AS40009 action pref=20; accept AS-BITGRAVITY
export: to AS40009 announce AS-BT-EU
import: from AS42708 action pref=20; accept AS-PORTLANE
export: to AS42708 announce AS-BT-EU
import: from AS43996 action pref=20; accept AS-BOOKING
export: to AS43996 announce AS-BT-EU
import: from AS44034 action pref=20; accept AS-Hi3G
export: to AS44034 announce AS-BT-EU
import: from AS45102 action pref=20; accept AS-ALIBABA-CN-NET
export: to AS45102 announce AS-BT-EU
import: from AS45489 action pref=20; accept AS-SLT-GLOBAL
export: to AS45489 announce AS-BT-EU
import: from AS46489 action pref=20; accept AS46489:AS-JUSTINTV
export: to AS46489 announce AS-BT-EU
import: from AS47447 action pref=20; accept AS-23MEDIA
export: to AS47447 announce AS-BT-EU
import: from AS49544 action pref=20; accept AS-INTERACTIVE3D
export: to AS49544 announce AS-BT-EU
import: from AS49981 action pref=20; accept AS-WORLDSTREAM
export: to AS49981 announce AS-BT-EU
import: from AS50304 action pref=20; accept AS-BLIX
export: to AS50304 announce AS-BT-EU
import: from AS52320 action pref=20; accept AS-GNT
export: to AS52320 announce AS-BT-EU
import: from AS53766 action pref=20; accept AS-VMWARE-SASE
export: to AS53766 announce AS-BT-EU
import: from AS54994 action pref=20; accept AS54994
export: to AS54994 announce AS-BT-EU
import: from AS55256 action pref=20; accept AS-NETSKOPE
export: to AS55256 announce AS-BT-EU
import: from AS56665 action pref=20; accept AS-PROXIMUS
export: to AS56665 announce AS-BT-EU
import: from AS57976 action pref=20; accept AS57976
export: to AS57976 announce AS-BT-EU
import: from AS58453 action pref=20; accept AS-CMI-ALL
export: to AS58453 announce AS-BT-EU
import: from AS60064 action pref=20; accept AS-HOSTPALACE
export: to AS60064 announce AS-BT-EU
import: from AS60068 action pref=20; accept AS-CDN77
export: to AS60068 announce AS-BT-EU
import: from AS61215 action pref=20; accept AS61215
export: to AS61215 announce AS-BT-EU
import: from AS62955 action pref=20; accept AS62955
export: to AS62955 announce AS-BT-EU
import: from AS63949 action pref=20; accept AS-LINODE
export: to AS63949 announce AS-BT-EU
import: from AS132203 action pref=20; accept AS-TENCENT
export: to AS132203 announce AS-BT-EU
import: from AS132876 action pref=20; accept AS-132876
export: to AS132876 announce AS-BT-EU
import: from AS139057 action pref=20; accept AS139057:AS-CONE
export: to AS139057 announce AS-BT-EU
import: from AS199524 action pref=20; accept AS-GCORE
export: to AS199524 announce AS-BT-EU
import: from AS202276 action pref=20; accept AS-IBOSS
export: to AS202276 announce AS-BT-EU
import: from AS394070 action pref=20; accept AS-394070
export: to AS394070 announce AS-BT-EU
import: from AS396986 action pref=20; accept AS-BYTEDANCE
export: to AS396986 announce AS-BT-EU
admin-c: DUMY-RIPE
tech-c: DUMY-RIPE
status: ASSIGNED
mnt-by: RIPE-NCC-END-MNT
remarks:
remarks: ALL peering requests see
remarks: www.bt.net/cgi-bin/peering-request
remarks:
remarks: for technical issues, pls contact: peering@bt.com
remarks:
remarks: for abuse, pls contact abuse@eu.bt.net
remarks:
remarks: 24/7 NOC email / network@bt.com
remarks: 24/7 NOC phone / +44 203 7882214 opt 1
remarks:
remarks: This object describes non-customer peerings
remarks: Customer peerings are described in the macro AS-BT-XX
remarks: (replace XX with the country code NL, UK, BE, IE,etc)
remarks:
remarks: Communities scheme:
remarks: The following BGP communities can be set by BT
remarks: BGP customers to affect announcements to major peers.
remarks:
remarks: ******************************************************
remarks:
remarks: 5400:N(0x585858)
remarks: N=1 not announce
remarks: N=2 prepend an extra "5400 5400" on announcement
remarks: Valid values for (0x585858):
remarks: 000 All peers and transits
remarks: 500 All transits
remarks: 503 Colt AS3356
remarks: 509 Arelion AS1299
remarks: 002 Sprint AS1239
remarks: 004 Vodafone Global Network AS1273
remarks: 005 Verizon EMEA AS702
remarks: 014 DTAG AS3320
remarks: 016 Orange AS5511
remarks: 018 Tata Communications Ltd AS6453
remarks: 023 GTT Communications AS3257
remarks: 045 Telecom Italia Sparkle AS6762
remarks: 073 GTT Communications AS286
remarks: 169 Cogent AS174
remarks: 177 Telxius Cable AS12956
remarks: 177 Telefonica Germany GmbH AS6805
remarks: 190 Comcast AS7922
remarks: 191 Highwinds Network Group AS12989
remarks: 300 All other peers
remarks: ------------------------------------------------------
remarks:
remarks: AS5400 is matching RPKI validation state and reject
remarks: invalid prefixes from peers and customers.
remarks:
remarks: Our looking-glass marks validation state for all
remarks: prefixes : http://www.bt.net/looking-glass.html
remarks:
remarks: Please review your registered ROAs to reduce number
remarks: of invalid prefixes.
remarks:
remarks: ------------------------------------------------------
mnt-by: CIP-MNT
created: 2002-08-29T09:47:11Z
last-modified: 2025-10-16T04:40:14Z
source: RIPE
remarks: ****************************
remarks: * THIS OBJECT IS MODIFIED
remarks: * Please note that all data that is generally regarded as personal
remarks: * data has been removed from this object.
remarks: * To view the original object, please query the RIPE Database at:
remarks: * http://www.ripe.net/whois
remarks: ****************************

Direct Membership

Macros that directly list AS5400 as a member:

AS-BT-AT(1 members)
AS-CONCERTEU(2 members)
AS-BT-DK(2 members)
AS-BT-LU(2 members)
AS-BT-CZ(4 members)
AS-BT-PL(4 members)
AS-BT-CH(5 members)
AS-BT-HU(6 members)
AS-BT-IT(7 members)
AS-BT-SE(8 members)
AS-NFORCE-PRIVATE-PEERS(8 members)
AS-BT-FR(10 members)
AS-BT-ES(11 members)
AS-BT-IE(14 members)
AS-BT-BE(17 members)
AS-BT-EU(18 members)
AS-BT6(19 members)
AS-BT-UK(20 members)
AS-BT-NL(32 members)
AS2116:AS-NIX(40 members)
AS-BT-DE(53 members)
AS-TO2-NIX-PEER(63 members)
AS24971:AS-MAI-NIX-PEER(74 members)
AS-RIS-RRC01(82 members)
AS-BNIX(82 members)
AS-TIXZH(98 members)
AS-LEVEL3-IPV6(158 members)
AS-KINX-TRANSIT(196 members)
AS-DIVIVOX(197 members)
AS47228:AS-DECIX-MUC-CONNECTED(213 members)
AS47228:AS-DECIX-MUC-RS-V6(213 members)
AS-RCN-CE-PEERS(217 members)
AS48793:AS-DECIX-MAD-CONNECTED(228 members)
AS56890:AS-DECIX-DUS-CONNECTED(238 members)
AS-TMNET-PEERS(271 members)
AS-GBLXEU(273 members)
AS1200:AS-AMS-IX-PEERS(485 members)
AS-LEVEL3-CUSTOMERS-EU(565 members)
AS6777:AS-AMS-IX-RS-SETS-V6(729 members)
AS6777:AS-AMS-IX-RS-V6(733 members)
AS3303:AS-SWCMPEERS(783 members)
AS6777:AS-AMS-IX-RS-SETS(797 members)
AS6777:AS-AMS-IX-RS(802 members)
AS-LEVEL3-CUSTOMERS-NA(971 members)
AS6695:AS-DECIX-FRA-RS-V6(1064 members)
AS6695:AS-DECIX-FRA-RS(1064 members)
AS6695:AS-DECIX-FRA-CONNECTED(1065 members)
AS-UDOS(1177 members)
AS-LEVEL3-ORIGINS-EU(7728 members)
AS-TELSTRA-INTL-CUSTOMERS(11248 members)

Expanded Membership

All macros containing AS5400 (directly or via nested macros): 340

Show 100 macros

AS-BT-AT(1 ASNs)
AS-BT-DK(2 ASNs)
AS-BT-LU(2 ASNs)
AS-BT-CZ(4 ASNs)
AS-BT-PL(4 ASNs)
AS-BT-CH(5 ASNs)
AS-BT-HU(6 ASNs)
AS-BT-SE(8 ASNs)
AS-NFORCE-PRIVATE-PEERS(8 ASNs)
AS-BT-FR(10 ASNs)
AS-BT-BE(18 ASNs)
AS-BT-NL(34 ASNs)
AS2116:AS-NIX(40 ASNs)
AS-BT-IT(47 ASNs)
AS-BT-DE(52 ASNs)
AS-TO2-NIX-PEER(63 ASNs)
AS-BNIX(82 ASNs)
AS-RIS-RRC01(82 ASNs)
AS-BT-IE(104 ASNs)
AS-BT-ES(191 ASNs)
AS-DIVIVOX(196 ASNs)
AS-KINX-TRANSIT(196 ASNs)
AS-DECIX-MUC-CONNECTED(213 ASNs)
AS-DECIX-MUC-RS-V6(213 ASNs)
AS47228:AS-DECIX-MUC-CONNECTED(213 ASNs)
AS47228:AS-DECIX-MUC-RS-V6(213 ASNs)
AS-DECIX-MAD-CONNECTED(228 ASNs)
AS48793:AS-DECIX-MAD-CONNECTED(228 ASNs)
AS-DECIX-DUS-CONNECTED(238 ASNs)
AS56890:AS-DECIX-DUS-CONNECTED(238 ASNs)
AS-TMNET-PEERS(271 ASNs)
AS-GBLXEU(273 ASNs)
AS-BT-UK(329 ASNs)
AS1200:AS-AMS-IX-PEERS(485 ASNs)
AS-LEVEL3-CUSTOMERS-EU(565 ASNs)
AS6777:AS-AMS-IX-RS-V6(733 ASNs)
AS-BT-EU(755 ASNs)
AS-CONCERT(755 ASNs)
AS-CONCERTEU(755 ASNs)
AS5400:AS-BTGF(755 ASNs)
AS3303:AS-SWCMPEERS(783 ASNs)
AS6777:AS-AMS-IX-RS(802 ASNs)
AS39521:AS-AMS-IX-PEERS(803 ASNs)
AS-GBLX(963 ASNs)
AS-LEVEL3-CUSTOMERS-NA(971 ASNs)
AS-DECIX-RS(1,064 ASNs)
AS-DECIX-RS-V6(1,064 ASNs)
AS6695:AS-DECIX-FRA-RS(1,064 ASNs)
AS6695:AS-DECIX-FRA-RS-V6(1,064 ASNs)
AS-DECIX-CONNECTED(1,065 ASNs)
AS6695:AS-DECIX-FRA-CONNECTED(1,065 ASNs)
AS-LEVEL3-CUSTOMERS(1,493 ASNs)
AS-UDOS(1,556 ASNs)
AS-BT6(2,741 ASNs)
AS-LEVEL3-IPV6(3,475 ASNs)
AS-LIMELIGHT-CUST(4,913 ASNs)
AS-LIMELIGHT(4,922 ASNs)
AS-LLNW(4,943 ASNs)
AS-RCN-CE-PEERS(5,340 ASNs)
AS-LEVEL3-ORIGINS-EU(7,728 ASNs)
AS-LEVELTHREEEU(7,728 ASNs)
AS-AS209(10,244 ASNs)
AS-QWEST(10,244 ASNs)
AS-EDGEUNO-TR(10,995 ASNs)
AS-KDDTRANSIT(11,930 ASNs)
AS-TELSTRA-INTL-CUSTOMERS(12,472 ASNs)
AS-EUNET(13,944 ASNs)
AS2914:AS-SA-V6(14,359 ASNs)
AS2914:AS-SA(14,363 ASNs)
AS-SAIX(15,195 ASNs)
AS-1031-PEER1(18,971 ASNs)
AS-LINKBRASIL-271253(19,032 ASNs)
AS271253:AS-CUSTOMERS(19,032 ASNs)
AS-ST1-PEERINGS(19,133 ASNs)
AS-OCCAID6(19,611 ASNs)
AS-OCCAID6-CUSTOMERS(19,611 ASNs)
AS-EDGEUNO(19,687 ASNs)
AS-MZIMA-CUSTOMERS(19,702 ASNs)
AS-MZIMA(19,703 ASNs)
AS-PXGLOBAL(19,703 ASNs)
AS-ARBINET-LAX-BUYERS(19,875 ASNs)
AS-AS53013(20,143 ASNs)
AS-VSNL-IN(23,661 ASNs)
AS-MFNX(26,187 ASNs)
AS47214:AS-LILLIX(26,738 ASNs)
AS43100:AS-MEMBERS(26,826 ASNs)
AS-SFINX-RS-MEMBERS-IPV6(26,914 ASNs)
AS-SFINX-RS-MEMBERS(26,976 ASNs)
AS4470:AS-TORIX-PEERS(27,996 ASNs)
AS4470:AS-PEERS(28,002 ASNs)
AS30781:AS-JAGUAR-PEERING-V6-SWISS-IX(28,564 ASNs)
AS30781:AS-JAGUAR-PEERING-SWISS-IX(31,389 ASNs)
AS-KCIX-MEMBERS(32,832 ASNs)
AS30781:AS-JAGUAR-PEERING-V6-EQUINIX-PA(34,681 ASNs)
AS30781:AS-JAGUAR-PEERING-EQUINIX-PA(37,230 ASNs)
AS-4IXP(42,438 ASNs)
AS201376:AS-PEERS(42,984 ASNs)
AS-INTEROUTE(43,471 ASNs)
AS30781:AS-JAGUAR-PEERING-V6-FRANCE-IX-MARSEILLE(44,422 ASNs)
AS30781:AS-JAGUAR-PEERING-FRANCE-IX-MARSEILLE(46,036 ASNs)
... and 240 more

Upstream AS Paths

39 unique paths, avg length 1.8

AS Looking Glass

Upstream paths (matching graph above)

AS150000 → AS18187 → AS174 → AS5400
AS37721 → AS174 → AS5400
AS136557 → AS174 → AS5400
AS199524 → AS174 → AS5400
AS33185 → AS1299 → AS5400
AS58511 → AS1299 → AS5400
AS140627 → AS1299 → AS5400
AS7594 → AS3356 → AS5400
AS19653 → AS3356 → AS5400
AS49544 → AS3356 → AS5400
AS150000 → AS18187 → AS3491 → AS5400
AS1221 → AS4637 → AS5400
AS150000 → AS6939 → AS4637 → AS5400
AS136557 → AS4637 → AS5400
AS32590 → AS6762 → AS5400
AS19653 → AS6939 → AS5400
AS33185 → AS6939 → AS5400
AS150000 → AS6939 → AS5400
AS32590 → AS12956 → AS5400
AS32590 → AS5400

All 39 Upstream Paths

Complete list of all observed paths

AS150000 → AS18187 → AS174 → AS5400
AS37721 → AS174 → AS5400
AS136557 → AS174 → AS5400
AS199524 → AS174 → AS5400
AS1299 → AS5400
AS33185 → AS1299 → AS5400
AS58511 → AS1299 → AS5400
AS140627 → AS1299 → AS5400
AS2497 → AS5400
AS3257 → AS5400
AS142271 → AS9304 → AS3257 → AS5400
AS7594 → AS3356 → AS5400
AS19653 → AS3356 → AS5400
AS49544 → AS3356 → AS5400
AS3491 → AS5400
AS150000 → AS18187 → AS3491 → AS5400
AS4181 → AS5400
AS1221 → AS4637 → AS5400
AS6939 → AS4637 → AS5400
AS150000 → AS6939 → AS4637 → AS5400
AS136557 → AS4637 → AS5400
AS16552 → AS6453 → AS5400
AS32590 → AS6762 → AS5400
AS37721 → AS6762 → AS5400
AS6830 → AS5400
AS6939 → AS5400
AS19653 → AS6939 → AS5400
AS33185 → AS6939 → AS5400
AS150000 → AS6939 → AS5400
AS9002 → AS5400
AS4826 → AS9002 → AS5400
AS32590 → AS12956 → AS5400
AS13030 → AS5400
AS142271 → AS9304 → AS15412 → AS5400
AS19151 → AS5400
AS32590 → AS5400
AS49544 → AS5400
AS52320 → AS5400
AS56665 → AS5400

AS5400 IPv4 Address Subnets (65)

195.100.0.0/16	🇬🇧 GB	BT Global Services -Nordics	BT
195.163.0.0/16	🇬🇧 GB	BT Global Services -Nordics	BT
206.73.0.0/16	🇬🇧 GB	BT-GNV	BT
213.15.0.0/16	🇬🇧 GB	BT Global Services -Nordics	BT
62.134.0.0/16	🇬🇧 GB	BT EU Backbone DE-Block1	BT
62.180.0.0/16	🇬🇧 GB	BT EU Backbone DE-Block2	BT
166.49.128.0/17	🇬🇧 GB	BT Global Networks	BT
62.102.0.0/17	🇬🇧 GB	BTIA BE	BT
62.5.0.0/17	🇬🇧 GB	BT Global Services -Nordics	BT
212.162.192.0/18	🇬🇧 GB	BTIA UK	BT

AS5400 IPv6 Address Subnets (14)

2001:740::/32	🇬🇧 GB	BT IPv6	BT
2a00:2000::/23	🇬🇧 GB	BT aggregate	BT
2a00:2200::/25	🇬🇧 GB	BT aggregate	BT
2a00:2200:200::/40	🇬🇧 GB	BT aggregate	BT
2a00:2200:2000::/40	🇬🇧 GB	BT aggregate	BT
2a00:2200:300::/40	🇬🇧 GB	BT aggregate	BT
2a00:2200:5300::/40	🇬🇧 GB	BT aggregate	BT
2a00:2200:900::/40	🇬🇧 GB	BT aggregate	BT
2a00:2200:b00::/40	🇬🇧 GB	BT aggregate	BT
2a00:2200:d00::/40	🇬🇧 GB	BT aggregate	BT