// Custodian DataCentres // CustodianDC LTD.

AS Name: CUSTDC

Organization: ORG-CL129-RIPE

Registry: RIPE

Imports from (18)

AS174 AS2914 AS3223 AS3356 AS5580 AS6939 AS31463 AS215162 AS42044 AS43408 AS48101 AS51926 AS60890 AS62217 AS199330 AS201303 AS201304 AS206925

Exports to (20)

AS174 AS-CUSTDC AS2914 AS3223 AS3356 AS5580 AS6939 AS31463 AS215162 AS-ANY AS42044 AS43408 AS48101 AS51926 AS60890 AS62217 AS199330 AS201303 AS201304 AS206925

aut-num: AS50300
as-name: CUSTDC
org: ORG-CL129-RIPE
remarks: =========================================================
remarks: | IPv4 Transit Peerings |
remarks: =========================================================
import: from AS174 action pref=100; accept ANY
export: to AS174 announce AS-CUSTDC
import: from AS2914 action pref=100; accept ANY
export: to AS2914 announce AS-CUSTDC
import: from AS3223 action pref=10; accept ANY
export: to AS3223 announce AS-CUSTDC
import: from AS3356 action pref=100; accept ANY
export: to AS3356 announce AS-CUSTDC
import: from AS5580 action pref=100; accept ANY
export: to AS5580 announce AS-CUSTDC
import: from AS6939 action pref=100; accept ANY
export: to AS6939 announce AS-CUSTDC
import: from AS31463 action pref=10; accept ANY
export: to AS31463 announce ANY
import: from AS215162 action pref=10; accept ANY
export: to AS215162 announce ANY
remarks: =========================================================
remarks: | IPv6 Transit Peerings |
remarks: =========================================================
mp-import: afi ipv6.unicast from AS174 action pref=100; accept ANY;
mp-export: afi ipv6.unicast to AS174 announce AS-CUSTDC;
mp-import: afi ipv6.unicast from AS2914 action pref=100; accept ANY;
mp-export: afi ipv6.unicast to AS2914 announce AS-CUSTDC;
mp-import: afi ipv6.unicast from AS3223 action pref=10; accept ANY;
mp-export: afi ipv6.unicast to AS3223 announce AS-CUSTDC;
mp-import: afi ipv6.unicast from AS3356 action pref=100; accept ANY;
mp-export: afi ipv6.unicast to AS3356 announce AS-CUSTDC;
mp-import: afi ipv6.unicast from AS5580 action pref=100; accept ANY;
mp-export: afi ipv6.unicast to AS5580 announce AS-CUSTDC;
mp-import: afi ipv6.unicast from AS6939 action pref=100; accept ANY;
mp-export: afi ipv6.unicast to AS6939 announce AS-CUSTDC;
mp-import: afi ipv6.unicast from AS31463 action pref=10; accept ANY;
mp-export: afi ipv6.unicast to AS31463 announce ANY;
mp-import: afi ipv6.unicast from AS215162 action pref=10; accept ANY;
mp-export: afi ipv6.unicast to AS215162 announce ANY;
remarks: =========================================================
remarks: | Exchange Point Peerings via LINX |
remarks: =========================================================
export: to AS-ANY at 195.66.224.139 announce AS-CUSTDC
mp-export: afi ipv6.unicast to AS-ANY at 2001:7F8:4::C47C:1 announce AS-CUSTDC;
remarks: =========================================================
remarks: | Exchange Point Peerings via AMS-IX |
remarks: =========================================================
export: to AS-ANY at 80.249.211.14 announce AS-CUSTDC
mp-export: afi ipv6.unicast to AS-ANY at 2001:7f8:1::a505:300:1 announce AS-CUSTDC;
remarks: =========================================================
remarks: | Exchange Point Peerings via LonAP |
remarks: =========================================================
export: to AS-ANY at 5.57.80.96 announce AS-CUSTDC
mp-export: afi ipv6.unicast to AS-ANY at 2001:7f8:17::c47c:1 announce AS-CUSTDC;
remarks: =========================================================
remarks: | Customer IPv4 Peerings |
remarks: =========================================================
import: from AS42044 action pref=300; accept AS42044
export: to AS42044 announce ANY
import: from AS43408 action pref=300; accept AS43408
export: to AS43408 announce ANY
import: from AS48101 action pref=300; accept AS48101
export: to AS48101 announce ANY
import: from AS51926 action pref=300; accept AS51926
export: to AS51926 announce ANY
import: from AS60890 action pref=300; accept AS60890
export: to AS60890 announce ANY
import: from AS62217 action pref=300; accept AS62217
export: to AS62217 announce ANY
import: from AS199330 action pref=300; accept AS199330
export: to AS199330 announce ANY
import: from AS201303 action pref=300; accept AS201303
export: to AS201303 announce ANY
import: from AS201304 action pref=300; accept AS201304
export: to AS201304 announce ANY
import: from AS206925 action pref=300; accept AS206925
export: to AS206925 announce ANY
remarks: =========================================================
remarks: | Customer IPv6 Peerings |
remarks: =========================================================
mp-import: afi ipv6.unicast from AS42044 action pref=300; accept AS42044;
mp-export: afi ipv6.unicast to AS42044 announce ANY;
mp-import: afi ipv6.unicast from AS43408 action pref=300; accept AS43408;
mp-export: afi ipv6.unicast to AS43408 announce ANY;
mp-import: afi ipv6.unicast from AS199330 action pref=300; accept AS199330;
mp-export: afi ipv6.unicast to AS199330 announce ANY;
mp-import: afi ipv6.unicast from AS60890 action pref=300; accept AS60890;
mp-export: afi ipv6.unicast to AS60890 announce ANY;
mp-import: afi ipv6.unicast from AS62217 action pref=300; accept AS62217;
mp-export: afi ipv6.unicast to AS62217 announce ANY;
mp-import: afi ipv6.unicast from AS201303 action pref=300; accept AS201303;
mp-export: afi ipv6.unicast to AS201303 announce ANY;
mp-import: afi ipv6.unicast from AS201304 action pref=300; accept AS201304;
mp-export: afi ipv6.unicast to AS201304 announce ANY;
remarks: =========================================================
remarks: | General Contact Information |
remarks: =========================================================
remarks: for ABUSE reports abuse@CustodianDC.com
remarks: for DNS requests dns@CustodianDC.com
remarks: for TECHNICAL requests support@CustodianDC.com
remarks: for PEERING requests peering@CustodianDC.com
remarks: =========================================================
remarks: | (e-mails not sent to these contacts will be ignored!) |
remarks: =========================================================
admin-c: DUMY-RIPE
tech-c: DUMY-RIPE
status: ASSIGNED
mnt-by: RIPE-NCC-END-MNT
mnt-by: MNT-CUSTODIAN
created: 2009-12-16T10:53:17Z
last-modified: 2025-09-01T15:59:30Z
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 AS50300 as a member:

AS-4D-DC-TRANSIT(6 members)
AS-4D-DC-CUSTOMERS(14 members)
AS-CUSTDC(27 members)
AS-RIS-RRC00(56 members)
AS-4D-DC-LONAP(94 members)
AS47841:AS-OPEN-PEERING(153 members)
AS-LONAP-MLP-V6(246 members)
AS-LONAP-MLP(267 members)
AS-LONAP-CONNECTED(304 members)
AS-MANDA-LINX-PEERS-V6(417 members)
AS-MANDA-LINX-PEERS-V4(423 members)
AS1200:AS-AMS-IX-PEERS(485 members)
AS-MANDA-AMSIX-PEERS-V6(559 members)
AS-SET-LONAP-CONNECTED(573 members)
AS-MANDA-AMSIX-PEERS-V4(596 members)
AS6777:AS-AMS-IX-RS-V6(733 members)
AS6777:AS-AMS-IX-RS(802 members)
AS-GTTCUST6(2384 members)
AS-GTTCUST(3453 members)
AS-HURRICANEV6(20402 members)

Expanded Membership

All macros containing AS50300 (directly or via nested macros): 260

Show 100 macros

AS-4D-DC-TRANSIT(6 ASNs)
AS-CUSTDC(26 ASNs)
AS-4D-DC-CUSTOMERS(34 ASNs)
AS-CALLFLOW(35 ASNs)
AS215162:AS-TROOLI(35 ASNs)
AS-RIS-RRC00(56 ASNs)
AS-REDCENTRIC(64 ASNs)
AS-4D-DC-LONAP(94 ASNs)
AS47841:AS-OPEN-PEERING(153 ASNs)
AS-NTLI(189 ASNs)
AS6830:AS-AORTAUK(204 ASNs)
AS-LONAP-MLP-V6(246 ASNs)
AS-LONAP-MLP(267 ASNs)
AS-LONAP-CONNECTED(304 ASNs)
AS-MANDA-LINX-PEERS-V6(417 ASNs)
AS-MANDA-LINX-PEERS-V4(423 ASNs)
AS1200:AS-AMS-IX-PEERS(485 ASNs)
AS-MANDA-AMSIX-PEERS-V6(559 ASNs)
AS-MANDA-AMSIX-PEERS-V4(596 ASNs)
AS6777:AS-AMS-IX-RS-V6(733 ASNs)
AS6777:AS-AMS-IX-RS(802 ASNs)
AS39521:AS-AMS-IX-PEERS(803 ASNs)
AS41073:AS-IPV4-INEX-PEERS(5,208 ASNs)
AS-UUNETEUUK(8,356 ASNs)
AS702:AS-UK-CUSTOMER(8,356 ASNs)
AS-AORTA(11,961 ASNs)
AS6830:AS-AORTA(11,961 ASNs)
AS41073:AS-INEX-PEERS(14,843 ASNs)
AS-VOXILITY-SET(15,206 ASNs)
AS-RDSNET(16,878 ASNs)
AS-RDSTRANSIT(16,878 ASNs)
AS-MAGYARTELEKOM(17,357 ASNs)
AS-MATAV(17,357 ASNs)
AS198792:AS-PEER-AMSIX-V4(19,486 ASNs)
AS-COMCAST-IBONE(19,609 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-DECIX-BCN-V6(28,476 ASNs)
AS57802:AS-DECIX-BCN-V6(28,476 ASNs)
AS30781:AS-JAGUAR-PEERING-V6-SWISS-IX(28,564 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-T-CIX(36,150 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)
AS702:AS-CUSTOMER(43,022 ASNs)
AS-INTEROUTE(43,471 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-RETN(47,667 ASNs)
AS-ECIX-MUC(48,469 ASNs)
AS-ECIX-DUS(48,854 ASNs)
AS2914:AS-US-V6(52,836 ASNs)
AS2914:AS-US(53,991 ASNs)
AS-NIXSK-RSCLIENTS(55,989 ASNs)
AS47627:AS-NIXSK-RSCLIENTS(56,033 ASNs)
AS-BIX-V6(56,058 ASNs)
AS-TELIANETRU(56,840 ASNs)
AS1299:AS-TWELVE99-RU-V4(56,840 ASNs)
AS-SEABONE-V6(57,112 ASNs)
AS-TOPIX-RS(57,252 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)
AS206221:AS-ERA-IX-AMSTERDAM(65,700 ASNs)
AS-ERA-IX(65,707 ASNs)
AS-SET-INEX-CONNECTED(67,097 ASNs)
AS-BIX(68,877 ASNs)
AS-SEABONECUSTEU(69,169 ASNs)
AS-BIX-BG(69,751 ASNs)
... and 160 more

Upstream AS Paths

45 unique paths, avg length 1.7

AS Looking Glass

Upstream paths (matching graph above)

AS2497 → AS2914 → AS50300
AS2500 → AS2914 → AS50300
AS140627 → AS2914 → AS50300
AS140627 → AS1299 → AS3223 → AS50300
AS2914 → AS3223 → AS50300
AS7594 → AS3356 → AS3223 → AS50300
AS2497 → AS3491 → AS3223 → AS50300
AS4181 → AS3223 → AS50300
AS32590 → AS6762 → AS3223 → AS50300
AS6939 → AS3223 → AS50300
AS142271 → AS9304 → AS3223 → AS50300
AS32590 → AS12956 → AS3223 → AS50300
AS19151 → AS3223 → AS50300
AS24482 → AS3223 → AS50300
AS32590 → AS3223 → AS50300
AS49544 → AS3223 → AS50300
AS52320 → AS3223 → AS50300
AS56665 → AS3223 → AS50300
AS2497 → AS6939 → AS50300
AS150000 → AS6939 → AS50300

All 45 Upstream Paths

Complete list of all observed paths

AS7594 → AS174 → AS50300
AS142271 → AS9304 → AS174 → AS50300
AS136557 → AS174 → AS50300
AS2914 → AS50300
AS2497 → AS2914 → AS50300
AS2500 → AS2914 → AS50300
AS140627 → AS2914 → AS50300
AS140627 → AS1299 → AS3223 → AS50300
AS2914 → AS3223 → AS50300
AS7594 → AS3356 → AS3223 → AS50300
AS2497 → AS3491 → AS3223 → AS50300
AS4181 → AS3223 → AS50300
AS6762 → AS3223 → AS50300
AS32590 → AS6762 → AS3223 → AS50300
AS6939 → AS3223 → AS50300
AS142271 → AS9304 → AS3223 → AS50300
AS32590 → AS12956 → AS3223 → AS50300
AS19151 → AS3223 → AS50300
AS24482 → AS3223 → AS50300
AS32590 → AS3223 → AS50300
AS49544 → AS3223 → AS50300
AS52320 → AS3223 → AS50300
AS56665 → AS3223 → AS50300
AS3257 → AS50300
AS16552 → AS3257 → AS50300
AS6939 → AS50300
AS2497 → AS6939 → AS50300
AS150000 → AS6939 → AS50300
AS8298 → AS50300
AS14537 → AS50300
AS24482 → AS50300
AS25091 → AS50300
AS36236 → AS50300
AS37100 → AS50300
AS38880 → AS50300
AS39120 → AS50300
AS49544 → AS50300
AS52320 → AS50300
AS56665 → AS50300
AS58511 → AS50300
AS61573 → AS50300
AS63927 → AS50300
AS137409 → AS50300
AS199524 → AS137409 → AS50300

AS50300 IPv4 Address Subnets (41)

185.14.164.0/22	🇬🇧 GB		CUSTDC
109.74.240.0/24	🇬🇧 GB	Custodian DataCentre	CUSTDC
109.74.241.0/24	🇬🇧 GB	Custodian DataCentre	CUSTDC
109.74.242.0/24	🇬🇧 GB	Custodian DataCentre	CUSTDC
109.74.243.0/24	🇬🇧 GB	Custodian DataCentre	CUSTDC
109.74.244.0/24	🇬🇧 GB	Custodian DataCentre	CUSTDC
109.74.246.0/24	🇬🇧 GB	Custodian DataCentre	CUSTDC
109.74.247.0/24	🇬🇧 GB	Custodian DataCentre	CUSTDC
109.74.248.0/24	🇬🇧 GB	Custodian DataCentre	CUSTDC
109.74.249.0/24	🇬🇧 GB	Custodian DataCentre	CUSTDC

AS50300 IPv6 Address Subnets (8)

2a00:1c10::/44	🇬🇧 GB	Custodian Ltd	CUSTDC
2a00:1c10:10::/44	🇬🇧 GB	Custodian Ltd	CUSTDC
2a00:1c10:100::/40	🇬🇧 GB	Custodian Ltd	CUSTDC
2a00:1c10:30::/44	🇬🇧 GB		CUSTDC
2a00:1c10:40::/44	🇬🇧 GB	Custodian Ltd	CUSTDC
2a00:1c10:cd0::/44	🇬🇧 GB	Custodian Ltd	CUSTDC
2a00:1c10:da2::/48	🇬🇧 GB		CUSTDC
2a00:1c10:fff0::/44	🇬🇧 GB	Custodian Ltd	CUSTDC