// Fiberby // Fiberby / Fibercity

AS Name: FIBERBY

Organization: ORG-FA448-RIPE

Registry: RIPE

Imports from (46)

Exports to (35)

⚠️ CIRCL BGP Security Rank: 0.0045% (position 11237)

aut-num:        AS42541
as-name:        FIBERBY
org:            ORG-FA448-RIPE
remarks:        +-------------------------------------------+
remarks:        | Fiberby ApS                    AS-FIBERBY |
remarks:        +-------------------------------------------+
remarks:
remarks:        Present at following IXP's:
remarks:        * AMS-IX
remarks:        * DE-CIX Frankfurt
remarks:        * NL-ix (@ Interxion CPH1)
remarks:        * LocIX Frankfurt
remarks:        * Netnod Copenhagen (formerly COMIX)
remarks:        * Netnod Stockholm
remarks:        * STHIX-CPH
remarks:
remarks:        Private peering available at:
remarks:        * GlobalConnect Taastrup, Horskaetten 3-5, Taastrup, DK
remarks:        * GlobalConnect Vesterbro, Vesterbrogade 149, Copenhagen V, DK
remarks:        * Interxion CPH1, Industriparken 20A, Ballerup, DK
remarks:        * TDC Borups Alle
remarks:        * TDC Vesterbro
remarks:        * TDC Valby
remarks:
remarks:        as-set announced: AS-FIBERBY
remarks:
remarks:        For more information check http://as42541.peeringdb.com/
remarks:
remarks:        +-------------------------------------------+
remarks:        | Transit                                   |
remarks:        +-------------------------------------------+
remarks:        1299: Telia Carrier
mp-import:      afi any.unicast from AS1299 accept ANY
mp-export:      afi any.unicast to AS1299 announce AS-FIBERBY
remarks:
remarks:        3356: Level3
mp-import:      afi any.unicast from AS3356 accept ANY
mp-export:      afi any.unicast to AS3356 announce AS-FIBERBY
remarks:
remarks:        6939: Hurricane Electric
mp-import:      afi ipv6.unicast from AS6939 accept ANY
mp-export:      afi ipv6.unicast to AS6939 announce AS-FIBERBY
remarks:
remarks:        +-------------------------------------------+
remarks:        | Private Peering                           |
remarks:        +-------------------------------------------+
remarks:        714: Apple
mp-import:      afi any.unicast from AS714 action pref=120; accept AS-APPLE
mp-export:      afi any.unicast to AS714 announce AS-FIBERBY
remarks:
remarks:        16509: Amazon
mp-import:      afi any.unicast from AS16509 action pref=120; accept AS-AMAZON
mp-export:      afi any.unicast to AS16509 announce AS-FIBERBY
remarks:
remarks:        20940: Akamai
mp-import:      afi any.unicast from AS20940 action pref=120; accept AS-AKAMAI
mp-export:      afi any.unicast to AS20940 announce AS-FIBERBY
remarks:
remarks:        31027: GlobalConnect
mp-import:      afi any.unicast from AS31027 action pref=120; accept AS-GCNET
mp-export:      afi any.unicast to AS31027 announce AS-FIBERBY
remarks:
remarks:        32934: Facebook / Meta
mp-import:      afi any.unicast from AS32934 action pref=120; accept AS-FACEBOOK
mp-export:      afi any.unicast to AS32934 announce AS-FIBERBY
remarks:
remarks:        39642: Norlys
mp-import:      afi any.unicast from AS39642 action pref=120; accept AS-SE-NET
mp-export:      afi any.unicast to AS39642 announce AS-FIBERBY
remarks:
remarks:        46489: Twitch
mp-import:      afi any.unicast from AS46489 action pref=120; accept AS-TWITCH
mp-export:      afi any.unicast to AS46489 announce AS-FIBERBY
remarks:
remarks:        +-------------------------------------------+
remarks:        | Internet Exchanges                        |
remarks:        +-------------------------------------------+
remarks:        DE-CIX Frankfurt
import-via:     AS6695 from AS-ANY action pref=120; accept ANY
export-via:     AS6695 to AS-ANY announce AS-FIBERBY
mp-import:      afi ipv4.unicast from AS42541:AS-FIBERBY-DECIX-FRA-PEERS-v4 action pref=120; accept ANY
mp-export:      afi ipv4.unicast to   AS42541:AS-FIBERBY-DECIX-FRA-PEERS-v4 announce AS-FIBERBY
mp-import:      afi ipv6.unicast from AS42541:AS-FIBERBY-DECIX-FRA-PEERS-v6 action pref=120; accept ANY
mp-export:      afi ipv6.unicast to   AS42541:AS-FIBERBY-DECIX-FRA-PEERS-v6 announce AS-FIBERBY
remarks:
remarks:        AMS-IX: Amsterdam Internet Exchange
import-via:     AS6777 from AS-ANY EXCEPT AS-FIBERBY-AMSIX-NO-RS action pref=120; accept ANY
export-via:     AS6777 to AS-ANY EXCEPT AS-FIBERBY-AMSIX-NO-RS announce AS-FIBERBY
mp-import:      afi ipv4.unicast from AS-FIBERBY-AMSIX-PEERS-v4 action pref=120; accept ANY
mp-export:      afi ipv4.unicast to   AS-FIBERBY-AMSIX-PEERS-v4 announce AS-FIBERBY
mp-import:      afi ipv6.unicast from AS-FIBERBY-AMSIX-PEERS-v6 action pref=120; accept ANY
mp-export:      afi ipv6.unicast to   AS-FIBERBY-AMSIX-PEERS-v6 announce AS-FIBERBY
remarks:
remarks:        NL-IX: The Interconnect Exchange (Pan European; connected @ Interxion CPH1)
import-via:     AS34307 from AS-ANY action pref=120; accept ANY
export-via:     AS34307 to AS-ANY announce AS-FIBERBY
mp-import:      afi ipv4.unicast from AS-FIBERBY-NLIX-PEERS-v4 action pref=120; accept ANY
mp-export:      afi ipv4.unicast to   AS-FIBERBY-NLIX-PEERS-v4 announce AS-FIBERBY
mp-import:      afi ipv6.unicast from AS-FIBERBY-NLIX-PEERS-v6 action pref=120; accept ANY
mp-export:      afi ipv6.unicast to   AS-FIBERBY-NLIX-PEERS-v6 announce AS-FIBERBY
remarks:
remarks:        COMIX: Netnod Copenhagen / Stockholm (Routeserver uses the same ASN)
import-via:     AS52005 from AS-ANY EXCEPT AS-FIBERBY-COMIX-NO-RS action pref=120; accept ANY
export-via:     AS52005 to AS-ANY EXCEPT AS-FIBERBY-COMIX-NO-RS announce AS-FIBERBY
mp-import:      afi ipv4.unicast from AS-FIBERBY-COMIX-PEERS-v4 action pref=120; accept ANY
mp-export:      afi ipv4.unicast to   AS-FIBERBY-COMIX-PEERS-v4 announce AS-FIBERBY
mp-import:      afi ipv6.unicast from AS-FIBERBY-COMIX-PEERS-v6 action pref=120; accept ANY
mp-export:      afi ipv6.unicast to   AS-FIBERBY-COMIX-PEERS-v6 announce AS-FIBERBY
remarks:
remarks:        STHIX-CPH: Stockholm Internet Exchange Copenhagen
import-via:     AS57151 from AS-ANY action pref=120; accept ANY
export-via:     AS57151 to AS-ANY announce AS-FIBERBY
mp-import:      afi ipv4.unicast from AS-FIBERBY-STHIX-CPH-PEERS-v4 action pref=120; accept ANY
mp-export:      afi ipv4.unicast to   AS-FIBERBY-STHIX-CPH-PEERS-v4 announce AS-FIBERBY
mp-import:      afi ipv6.unicast from AS-FIBERBY-STHIX-CPH-PEERS-v6 action pref=120; accept ANY
mp-export:      afi ipv6.unicast to   AS-FIBERBY-STHIX-CPH-PEERS-v6 announce AS-FIBERBY
remarks:
remarks:        DE-CIX Oslo
import-via:     AS201526 from AS-ANY action pref=120; accept ANY
export-via:     AS201526 to AS-ANY announce AS-FIBERBY
mp-import:      afi ipv4.unicast from AS42541:AS-FIBERBY-DECIX-OSL-PEERS-v4 action pref=120; accept ANY
mp-export:      afi ipv4.unicast to   AS42541:AS-FIBERBY-DECIX-OSL-PEERS-v4 announce AS-FIBERBY
mp-import:      afi ipv6.unicast from AS42541:AS-FIBERBY-DECIX-OSL-PEERS-v6 action pref=120; accept ANY
mp-export:      afi ipv6.unicast to   AS42541:AS-FIBERBY-DECIX-OSL-PEERS-v6 announce AS-FIBERBY
remarks:
remarks:        DE-CIX Helsinki
import-via:     AS201560 from AS-ANY action pref=120; accept ANY
export-via:     AS201560 to AS-ANY announce AS-FIBERBY
mp-import:      afi ipv4.unicast from AS42541:AS-FIBERBY-DECIX-HEL-PEERS-v4 action pref=120; accept ANY
mp-export:      afi ipv4.unicast to   AS42541:AS-FIBERBY-DECIX-HEL-PEERS-v4 announce AS-FIBERBY
mp-import:      afi ipv6.unicast from AS42541:AS-FIBERBY-DECIX-HEL-PEERS-v6 action pref=120; accept ANY
mp-export:      afi ipv6.unicast to   AS42541:AS-FIBERBY-DECIX-HEL-PEERS-v6 announce AS-FIBERBY
remarks:
remarks:        DE-CIX Copenhagen
import-via:     AS201561 from AS-ANY action pref=120; accept ANY
export-via:     AS201561 to AS-ANY announce AS-FIBERBY
mp-import:      afi ipv4.unicast from AS42541:AS-FIBERBY-DECIX-CPH-PEERS-v4 action pref=120; accept ANY
mp-export:      afi ipv4.unicast to   AS42541:AS-FIBERBY-DECIX-CPH-PEERS-v4 announce AS-FIBERBY
mp-import:      afi ipv6.unicast from AS42541:AS-FIBERBY-DECIX-CPH-PEERS-v6 action pref=120; accept ANY
mp-export:      afi ipv6.unicast to   AS42541:AS-FIBERBY-DECIX-CPH-PEERS-v6 announce AS-FIBERBY
remarks:
remarks:        LocIX: LocIX Frankfurt
import-via:     AS202409 from AS-ANY action pref=120; accept ANY
export-via:     AS202409 to AS-ANY announce AS-FIBERBY
mp-import:      afi ipv4.unicast from AS-FIBERBY-LOCIX-PEERS-v4 action pref=120; accept ANY
mp-export:      afi ipv4.unicast to   AS-FIBERBY-LOCIX-PEERS-v4 announce AS-FIBERBY
mp-import:      afi ipv6.unicast from AS-FIBERBY-LOCIX-PEERS-v6 action pref=120; accept ANY
mp-export:      afi ipv6.unicast to   AS-FIBERBY-LOCIX-PEERS-v6 announce AS-FIBERBY
remarks:
remarks:        +-------------------------------------------+
remarks:        | Customers                                 |
remarks:        +-------------------------------------------+
remarks:        12654: RIPE RIS
mp-import:      afi any.unicast from AS12654 accept AS-RIS
mp-export:      afi any.unicast to AS12654 announce ANY
remarks:
remarks:        19281: Quad9
mp-import:      afi any.unicast from AS19281 accept AS-QUAD9-ANYCAST
mp-export:      afi any.unicast to AS19281 announce ANY
remarks:
remarks:        201697: Semaphor
mp-import:      afi any.unicast from AS201697 accept AS-SEMAPHOR
mp-export:      afi any.unicast to AS201697 announce ANY
remarks:
remarks:        204141: K-net
mp-import:      afi any.unicast from AS204141 accept AS204141:AS-KNETDK
mp-export:      afi any.unicast to AS204141 announce ANY
remarks:
remarks:        205235: Labitat
mp-import:      afi any.unicast from AS205235 accept AS-LABITAT
mp-export:      afi any.unicast to AS205235 announce ANY
remarks:
remarks:        208647: BornHack
mp-import:      afi any.unicast from AS208647 accept AS208647
mp-export:      afi any.unicast to AS208647 announce ANY
remarks:
remarks:        +-------------------------------------------+
remarks:        | Contact                                   |
remarks:        +-------------------------------------------+
remarks:        * operational issues, contact noc@fiberby.net
remarks:        * peering inquiries, contact peering@fiberby.net
remarks:        * security issues, contact abuse@fiberby.net
remarks:        * end-user issues, contact support@fiberby.dk
remarks:
remarks:        +-------------------------------------------+
remarks:        | Fiberby has an open peering policy        |
remarks:        +-------------------------------------------+
remarks:
admin-c:        DUMY-RIPE
tech-c:         DUMY-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         FIBERBY
notify:         noc@fiberby.net
created:        2009-11-13T13:13:21Z
last-modified:  2026-04-09T13:36:17Z
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 AS42541 as a member:

AS-FIBERBY(8 members)
AS-NAO-PEERS(68 members)
AS-RIS-RRC03(82 members)
AS61180:AS-PEERS-AMSIX(301 members)
AS-MANDA-AMSIX-PEERS-V6(559 members)
AS-MANDA-AMSIX-PEERS-V4(596 members)
AS-MANDA-DECIX-PEERS-V6(623 members)
AS-MANDA-DECIX-PEERS-V4(666 members)
AS6777:AS-AMS-IX-RS-V6(733 members)
AS6777:AS-AMS-IX-RS(802 members)
AS6695:AS-DECIX-FRA-RS-V6(1064 members)
AS6695:AS-DECIX-FRA-RS(1064 members)
AS6695:AS-DECIX-FRA-CONNECTED(1065 members)
AS-HURRICANEV6(20402 members)

Expanded Membership

All macros containing AS42541 (directly or via nested macros): 214

Show 100 macros

AS-FIBERBY(13 ASNs)
AS-RIS-RRC03(82 ASNs)
AS61180:AS-PEERS-AMSIX(301 ASNs)
AS-MANDA-AMSIX-PEERS-V6(559 ASNs)
AS-MANDA-AMSIX-PEERS-V4(596 ASNs)
AS-MANDA-DECIX-PEERS-V6(623 ASNs)
AS-MANDA-DECIX-PEERS-V4(666 ASNs)
AS6777:AS-AMS-IX-RS-V6(733 ASNs)
AS6777:AS-AMS-IX-RS(802 ASNs)
AS39521:AS-AMS-IX-PEERS(803 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-NAO-PEERS(3,072 ASNs)
AS-OPENPEERING(5,106 ASNs)
AS-OPENPEERING-EU(5,106 ASNs)
AS-OPENPEERINGMEMBERS(6,072 ASNs)
AS213973:AS-BCIX(13,844 ASNs)
AS213973:AS-PARTNERS(13,844 ASNs)
AS57328:AS-DDIX(13,844 ASNs)
AS59552:AS-SON-IX-RS(13,844 ASNs)
AS-NOTSURFNET-PEERS(19,650 ASNs)
AS-HURRICANEV6(20,402 ASNs)
AS-SEECIX-V6(20,691 ASNs)
AS56858:AS-SEECIX-V6(20,691 ASNs)
AS-DECIX-RIC-V6(20,721 ASNs)
AS393752:AS-DECIX-RIC-V6(20,721 ASNs)
AS30781:AS-JAGUAR-PEERING-V6-TIX(21,568 ASNs)
AS-LITIX-V6(22,027 ASNs)
AS-T-CIX-V6(22,807 ASNs)
AS-BALT-IX-V6(23,949 ASNs)
AS30781:AS-JAGUAR-PEERING-V6-CIXP(24,509 ASNs)
AS-FIXO-V6(25,776 ASNs)
AS-SET-STHIX-RS(28,136 ASNs)
AS-DECIX-BCN-V6(28,476 ASNs)
AS57802:AS-DECIX-BCN-V6(28,476 ASNs)
AS30781:AS-JAGUAR-PEERING-V6-SWISS-IX(28,564 ASNs)
AS30781:AS-JAGUAR-PEERING-SWISS-IX(31,389 ASNs)
AS-DECIX-ORD-V6(31,479 ASNs)
AS62760:AS-DECIX-ORD-V6(31,479 ASNs)
AS-DECIX-LIS-V6(32,541 ASNs)
AS43729:AS-DECIX-LIS-V6(32,541 ASNs)
AS30781:AS-JAGUAR-PEERING-V6-EQUINIX-PA(34,681 ASNs)
AS-MONIX-PEERS(37,180 ASNs)
AS-TAHOEIX-MEMBERS(37,370 ASNs)
AS-MBIX-RS-MEMBERS(37,425 ASNs)
AS-ONIX(37,766 ASNs)
AS211776:AS-CRAFTBYTE-UPSTREAMS(37,882 ASNs)
AS-VSIX-RS(38,411 ASNs)
AS207800:AS-RTIX-SET(39,194 ASNs)
AS33495:AS-MEMBERS(39,231 ASNs)
AS-DECIX-DFW-V6(40,077 ASNs)
AS62499:AS-DECIX-DFW-V6(40,077 ASNs)
AS-LUCIX-RS(40,498 ASNs)
AS7606:AS-QLD-IX(40,666 ASNs)
AS7606:AS-WA-IX(40,872 ASNs)
AS-SONIX(41,963 ASNs)
AS-VANIX-RS-PARTICIPANTS(42,555 ASNs)
AS30781:AS-JAGUAR-PEERING-V6-FRANCE-IX-MARSEILLE(44,422 ASNs)
AS-ECIX-BER(45,114 ASNs)
AS-ECIX-HAM(46,249 ASNs)
AS7606:AS-NSW-IX(46,591 ASNs)
AS7606:AS-ALL(47,090 ASNs)
AS-ECIX-MUC(48,469 ASNs)
AS-ECIX-DUS(48,854 ASNs)
AS-NIXSK-RSCLIENTS(55,989 ASNs)
AS47627:AS-NIXSK-RSCLIENTS(56,033 ASNs)
AS-BIX-V6(56,058 ASNs)
AS-TOPIX-RS(57,252 ASNs)
AS1273:AS-CWW(59,499 ASNs)
AS-PLIX6(60,222 ASNs)
AS-SET-INEX-RS(60,298 ASNs)
AS-BCIX-RS(61,123 ASNs)
AS16374:AS-BCIX-RS(61,123 ASNs)
AS-CW6(66,853 ASNs)
AS1273:AS-CWW-V6(66,853 ASNs)
AS201561:AS-DECIX-CPH(66,988 ASNs)
AS201561:AS-DECIX-CPH-V6(66,988 ASNs)
AS-SET-INEX-CONNECTED(67,097 ASNs)
AS-CW(67,352 ASNs)
AS-UAEIX-V6(71,954 ASNs)
AS61374:AS-UAEIX-V6(71,954 ASNs)
AS-SIXSK-SETS-V6(71,982 ASNs)
AS-PEERINGCZ-RS(72,214 ASNs)
AS-DECIX-DUS(73,592 ASNs)
AS56890:AS-DECIX-DUS(73,592 ASNs)
AS-DECIX-HAM(73,753 ASNs)
AS-WORKIX(73,753 ASNs)
AS43252:AS-DECIX-HAM(73,753 ASNs)
AS-DECIX-IST-V6(73,807 ASNs)
AS20715:AS-DECIX-IST-V6(73,807 ASNs)
AS-BALCANIX(74,900 ASNs)
AS6881:AS-NIXCZ-CLIENTS(75,302 ASNs)
AS-NIXCZ-CLIENTS(75,315 ASNs)
AS-SIX6(76,016 ASNs)
AS-BRYCE-PEERS-AMS(76,072 ASNs)
AS-LOCIX(76,072 ASNs)
... and 114 more

Upstream AS Paths

23 unique paths, avg length 1.4

AS Looking Glass

Upstream paths (matching graph above)

AS293 → AS42541
AS2497 → AS3356 → AS42541
AS2516 → AS3356 → AS42541
AS7594 → AS3356 → AS42541
AS150000 → AS18187 → AS6939 → AS42541
AS150000 → AS6939 → AS42541
AS32590 → AS7195 → AS42541
AS13030 → AS42541
AS37100 → AS42541
AS38880 → AS42541
AS39120 → AS42541
AS49544 → AS42541
AS52320 → AS42541
AS56665 → AS42541
AS58511 → AS42541
AS60539 → AS42541
AS63927 → AS42541
AS199524 → AS137409 → AS42541
AS209823 → AS42541
AS266213 → AS262355 → AS42541

All 23 Upstream Paths

Complete list of all observed paths

AS293 → AS42541
AS2497 → AS3356 → AS42541
AS2516 → AS3356 → AS42541
AS7594 → AS3356 → AS42541
AS6939 → AS42541
AS150000 → AS18187 → AS6939 → AS42541
AS150000 → AS6939 → AS42541
AS32590 → AS7195 → AS42541
AS9002 → AS42541
AS13030 → AS42541
AS37100 → AS42541
AS38880 → AS42541
AS39120 → AS42541
AS49544 → AS42541
AS52320 → AS42541
AS56665 → AS42541
AS58511 → AS42541
AS60539 → AS42541
AS63927 → AS42541
AS199524 → AS137409 → AS42541
AS209823 → AS42541
AS266213 → AS262355 → AS42541

AS42541 IPv4 Address Subnets (5)

89.23.224.0/19	🇩🇰 DK	Fiberby ApS	FIBERBY
185.10.220.0/22	🇩🇰 DK	Fiberby	FIBERBY
193.106.164.0/22	🇩🇰 DK	Fiberby	FIBERBY
194.62.216.0/23	🇩🇰 DK		FIBERBY
193.104.135.0/24	🇩🇰 DK	Fiberby	FIBERBY