AS203208 — CTU_AS4_2
AS Name: CTU_AS4_2
Organization: ORG-CTO1-RIPE
Registry: RIPE
aut-num: AS203208
as-name: CTU_AS4_2
org: ORG-CTO1-RIPE
import: from AS5588 accept ANY
export: to AS5588 announce AS203208
import: from AS12767 accept ANY
export: to AS12767 announce AS203208
admin-c: DUMY-RIPE
tech-c: DUMY-RIPE
status: ASSIGNED
mnt-by: RIPE-NCC-END-MNT
mnt-by: SUPER-CTU
created: 2016-03-08T14:32:58Z
last-modified: 2025-07-04T09:55:24Z
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 AS203208 as a member:
AS-GTSCZ-CUST(120 members)
Expanded Membership
All macros containing AS203208 (directly or via nested macros): 75
Show 75 macros
AS-GTSCZ-CUST(135 ASNs)
AS-GTSCZ(388 ASNs)
AS-SLOVAK(406 ASNs)
AS-GTSCZ-NIX(1,405 ASNs)
AS-GTS-CE(1,469 ASNs)
AS-INTEROUTE(43,471 ASNs)
AS-BIX-V6(56,058 ASNs)
AS-SIXSK-SETS(67,561 ASNs)
AS-BIX(68,877 ASNs)
AS-C4LPEERS(70,320 ASNs)
AS3320:AS-DTAG-V6(71,426 ASNs)
AS-SIXSK-SETS-V6(71,982 ASNs)
AS-PEERINGCZ-RS(72,214 ASNs)
AS-DTAG(72,392 ASNs)
AS3320:AS-DTAG(72,392 ASNs)
AS-EBONE(73,672 ASNs)
AS-PL-IX(74,048 ASNs)
AS-PLIX(74,048 ASNs)
AS-BALCANIX(74,900 ASNs)
AS6881:AS-NIXCZ-CLIENTS(75,302 ASNs)
AS-NIXCZ-CLIENTS(75,315 ASNs)
AS-OPENPEERINGPEERS(76,528 ASNs)
AS-OPENPEERINGPEERS-EU(76,536 ASNs)
AS-DTEL-IX-V6(77,018 ASNs)
AS-DTEL-IX(77,093 ASNs)
AS-GTU-PEER(77,093 ASNs)
AS-ITS-UA(78,167 ASNs)
AS-COSMONOVA-PARITY(78,237 ASNs)
AS-UTG-UA-IXS(78,237 ASNs)
AS-RTD-RO(78,404 ASNs)
AS-1-IX(79,814 ASNs)
AS31561:AS-MEMBERS-AMS(79,814 ASNs)
AS31561:AS-MEMBERS(79,895 ASNs)
AS-STOLON-PEERING(79,897 ASNs)
AS-HOPUS(80,866 ASNs)
AS-1-IX-WAW(82,799 ASNs)
AS3326:AS-PEERS-UA(83,796 ASNs)
AS3326:AS-UA(83,796 ASNs)
AS-GTTCUST6(83,984 ASNs)
AS-TINETCUST6(83,984 ASNs)
AS-GTTCUST(84,520 ASNs)
AS-TINETCUST(84,520 ASNs)
AS-1-IX-WAW-V6(84,590 ASNs)
AS-GTT(84,608 ASNs)
AS-TINET(84,608 ASNs)
AS-TISCALI(84,608 ASNs)
AS-KLNK-IX(85,102 ASNs)
AS-NL-IX-RS(85,102 ASNs)
AS-CESNET-NIX-PEERS(85,295 ASNs)
AS-TELIANETEU-V6(85,444 ASNs)
AS1299:AS-TWELVE99-EU-V6(85,444 ASNs)
AS-TELIANETEU(85,632 ASNs)
AS1299:AS-TWELVE99-EU-V4(85,632 ASNs)
AS-SOX(90,571 ASNs)
AS59900:AS-B-IX-PARTNERS(90,888 ASNs)
AS-VIX-RS(90,892 ASNs)
AS-VIX-RS-V6(91,142 ASNs)
AS216369:AS-IX(91,206 ASNs)
AS-TELIANET-V6(92,705 ASNs)
AS1299:AS-TWELVE99-V6(92,705 ASNs)
AS-TELIANET(92,989 ASNs)
AS1299:AS-TWELVE99-V4(92,989 ASNs)
AS-BCIX(93,003 ASNs)
AS16374:AS-BCIX-ALL(93,003 ASNs)
AS1299:AS-TWELVE99(93,076 ASNs)
AS-TIXZH(94,757 ASNs)
AS-DECIX(96,509 ASNs)
AS-NFON-DECIX-PEERS-V4(96,509 ASNs)
AS-NFON-DECIX-PEERS-V6(96,509 ASNs)
AS6695:AS-DECIX-FRA(96,509 ASNs)
AS-ST1-IXPS(96,670 ASNs)
AS-DECIX-V6(100,277 ASNs)
AS6695:AS-DECIX-FRA-V6(100,277 ASNs)
AS-CLOUD-IX-PRO(100,911 ASNs)
AS-MERKEL-PEERS(100,925 ASNs)
Upstream AS Paths
27 unique paths, avg length 3.1
AS Looking Glass
Upstream paths (matching graph above)
All 27 Upstream Paths
Complete list of all observed paths
AS203208 IPv4 Address Subnets (2)
| 185.68.212.0/23 | 🇨🇿 CZ | CTU IPv4 route | CTU_AS4_2 |
| 185.68.214.0/24 | 🇨🇿 CZ | CTU IPv4 route | CTU_AS4_2 |
AS203208 IPv6 Address Subnets (3)
| 2a05:1c40::/30 | 🇨🇿 CZ | CTU IPv6 route | CTU_AS4_2 |
| 2a05:1c44::/31 | 🇨🇿 CZ | CTU IPv6 route | CTU_AS4_2 |
| 2a05:1c46::/32 | 🇨🇿 CZ | CTU IPv6 route | CTU_AS4_2 |