AS15721 — CTCO
Upstream AS Paths
31 unique paths, avg length 3.3
AS Looking Glass
Upstream paths (matching graph above)
All 31 Upstream Paths
Complete list of all observed paths
AS15721 IPv4 Address Subnets (3)
| 217.21.168.0/21 | 🇱🇻 LV | CTCO-NET | CTCO |
| 217.21.168.0/22 | 🇱🇻 LV | CTCO-NET | CTCO |
| 217.21.172.0/22 | 🇱🇻 LV | CTCO-NET | CTCO |
AS Name: CTCO
Description: Riga, Latvia
Organization: ORG-CL2-RIPE
Registry: RIPE
aut-num: AS15721
org: ORG-CL2-RIPE
as-name: CTCO
descr: Riga, Latvia
import: from AS-CTCO action pref=100; accept AS-LATVIA
import: from AS21016 action pref=50; accept ANY
export: to AS-CTCO announce AS15721
export: to AS21016 action aspath.prepend (AS15721, AS15721); announce AS15721
import: from AS12578 action pref=200; accept ANY
export: to AS12578 announce AS15721
import: from AS197870 action pref=200; accept ANY
export: to AS197870 announce AS15721
import: from AS9002 action pref=50; accept ANY
export: to AS9002 action aspath.prepend (AS15721,AS15721,AS15721,AS15721,AS15721); announce AS15721
admin-c: DUMY-RIPE
tech-c: DUMY-RIPE
status: ASSIGNED
mnt-by: RIPE-NCC-END-MNT
mnt-by: CTCO-MNT
created: 2001-12-13T18:16:00Z
last-modified: 2023-10-20T11:49:35Z
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: ****************************
Hostnames in AS15721
Direct Membership
Macros that directly list AS15721 as a member:
AS-ARMORCLOUD(2 members)
AS-RETNLV(20 members)
AS-LIXLV(46 members)
AS-BELPAK(68 members)
AS-LATVIA(105 members)
AS-LTELECOM(189 members)
AS-NIC-LV(189 members)
AS-LATTELEKOM(284 members)
AS-RETN(831 members)
AS-RETN-ACTUAL-V4(12045 members)
Expanded Membership
All macros containing AS15721 (directly or via nested macros): 331
Show 100 macros
AS-ARMORCLOUD(2 ASNs)
AS-RETNLV(30 ASNs)
AS-LATVIA(105 ASNs)
AS-LIXLV(150 ASNs)
AS-BELPAK(161 ASNs)
AS-BYIX(165 ASNs)
AS-NIC-LV(189 ASNs)
AS-MNOGOBYTE(476 ASNs)
AS-LATTELEKOM(658 ASNs)
AS-TEO6(665 ASNs)
AS-GLVIX-CUSTOMERS(731 ASNs)
AS-LTELECOM(899 ASNs)
AS-TEO-GT(899 ASNs)
AS-ROSTELECOM-SZ(1,333 ASNs)
AS28917:AS-FIORD-SMALL(1,801 ASNs)
AS544:AS-TELIA(4,975 ASNs)
AS-RETN-ACTUAL-V4(12,045 ASNs)
AS-FIORD(12,063 ASNs)
AS-FIORD-V6(12,063 ASNs)
AS-W-IX(14,497 ASNs)
AS-PITER-IX-TLL(14,528 ASNs)
AS57304:AS-RETN6-RU(14,630 ASNs)
AS57304:AS-RETN-RU(14,717 ASNs)
AS-RED-IX-PEERS(15,552 ASNs)
AS-KRD-RS(17,283 ASNs)
AS-CLOUD-IX-M(17,536 ASNs)
AS-CLOUD-IX(17,641 ASNs)
AS-CITYTELECOM(17,663 ASNs)
AS-HOSTER(17,663 ASNs)
AS-SPBROUTESERVER(17,816 ASNs)
AS-BALT-IX-V6(23,949 ASNs)
AS-BALT-IX(27,227 ASNs)
AS-PITER-IX-FRA(27,939 ASNs)
AS-LITIX(28,046 ASNs)
AS-SET-STHIX-RS(28,136 ASNs)
AS-SOVAM(34,887 ASNs)
AS-CWCCUSTOMERS(34,940 ASNs)
AS-MERCURY(34,969 ASNs)
AS-UUNETEUDE(34,985 ASNs)
AS702:AS-DE-CUSTOMER(34,985 ASNs)
AS-TELARM(35,456 ASNs)
AS-ARMENTEL(35,460 ASNs)
AS-SET-UTG(35,510 ASNs)
AS-AZERSATMEMBERS(35,515 ASNs)
AS-SKYVISION-2(35,554 ASNs)
AS-SKYVISION(35,589 ASNs)
AS702:AS-BE-CUSTOMER(35,695 ASNs)
AS-RASCOM(35,828 ASNs)
AS20764:AS-RASCOM(35,829 ASNs)
AS-PIRIX(36,082 ASNs)
AS-PIRIX-CUSTOM(36,082 ASNs)
AS-ELBA-IX-ROUTESERVER(36,120 ASNs)
AS48193:AS-PITER-IX-FRA(36,250 ASNs)
AS-TTNET(36,321 ASNs)
AS-MF-MGSM(36,444 ASNs)
AS-TTK(36,818 ASNs)
AS702:AS-SE-CUSTOMER(37,142 ASNs)
AS-ECRCCUSTDE(37,596 ASNs)
AS-ECRC(37,597 ASNs)
AS-ECRCLINX(37,597 ASNs)
AS-ECRCDE(37,597 ASNs)
AS-CWE(37,716 ASNs)
AS-UUNETPIPEXLINX(38,009 ASNs)
AS-MTU(38,044 ASNs)
AS-RNDROUTESERVER(38,077 ASNs)
AS-EKTROUTESERVER(38,078 ASNs)
AS-LSC-IXP-RS(38,302 ASNs)
AS-LSC-IXP(38,312 ASNs)
AS-SEABONECUSTMEAF(38,795 ASNs)
AS5413:AS-ROUTE-SERVER-DE-CIX(39,681 ASNs)
AS-PITER-IX(42,188 ASNs)
AS-IPTT(42,188 ASNs)
AS-PITERIX(42,189 ASNs)
AS-PITER-IX-MSK(42,291 ASNs)
AS49869:AS-PITER-IX-MSK(42,438 ASNs)
AS702:AS-CUSTOMER(43,022 ASNs)
AS-RETN6(44,950 ASNs)
AS-TELIANETRU-V6(45,288 ASNs)
AS1299:AS-TWELVE99-RU-V6(45,288 ASNs)
AS-INTELSATUS(46,298 ASNs)
AS-DIGICOMMPS(46,931 ASNs)
AS-BROADNETIL(46,931 ASNs)
AS-RETN(47,667 ASNs)
AS-ROSTELECOM(53,118 ASNs)
AS-NSKROUTESERVER(53,148 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)
AS3491:AS-CUSTOMERS-AP(58,474 ASNs)
AS-CTGNET(58,815 ASNs)
AS-37662(59,003 ASNs)
AS-CN(59,223 ASNs)
AS1273:AS-CWW(59,499 ASNs)
AS-LEVEL3-UAE(60,102 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-CAIS(61,483 ASNs)
... and 231 more