AS43542 — OptoNet-AS
AS Name: OptoNet-AS
Organization: ORG-OCLS3-RIPE
Registry: RIPE
⚠️ CIRCL BGP Security Rank: 0.0366% (position 7331)
aut-num: AS43542
as-name: OptoNet-AS
org: ORG-OCLS3-RIPE
remarks: ======== TRANSIT UPSTREAM ========
remarks: -- VODAFONE-CZ --
import: from AS16019 accept any
export: to AS16019 announce AS-OPTONET-TRANSIT
remarks: -- T-Mobile CZ --
import: from AS6855 accept any
export: to AS6855 announce AS-OPTONET-TRANSIT
remarks: ======== IXs peers ========
remarks: -- NIX.CZ ROUTESERVERS --
import: from AS47200 accept ANY
export: to AS47200 announce AS-OPTONET-TRANSIT
remarks: ======== TRANSIT CUSTOMERS ========
remarks: -- Kraj Vysocina --
import: from AS48091 accept AS48091
export: to AS48091 announce any
remarks: -- LCJ s.r.o. --
import: from AS44104 accept AS44104
export: to AS44104 announce any
remarks: -- NGA Services, spol. s r.o. --
import: from AS202979 accept AS202979 AS203365
export: to AS202979 announce any
remarks: -- CNI Group s.r.o. --
import: from AS207945 accept AS207945
export: to AS207945 announce any
admin-c: DUMY-RIPE
status: ASSIGNED
mnt-by: RIPE-NCC-END-MNT
tech-c: DUMY-RIPE
notify: info@optonet.cz
mnt-by: MNT-OPTONET
created: 2007-08-20T08:25:37Z
last-modified: 2026-03-16T07:54:18Z
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 AS43542 as a member:
AS-DIALTELECOM(112 members)
AS-GTSCZ-CUST(120 members)
AS8508:AS-SASK-UPC-IN(510 members)
Expanded Membership
All macros containing AS43542 (directly or via nested macros): 92
Show 92 macros
AS-GTSCZ-CUST(135 ASNs)
AS-DIALTELECOM(183 ASNs)
AS-DIALTELECOM-SIX(186 ASNs)
AS-GTSCZ(388 ASNs)
AS-SLOVAK(406 ASNs)
AS8508:AS-SASK-UPC-IN(509 ASNs)
AS-GTSCZ-NIX(1,405 ASNs)
AS-GTS-CE(1,469 ASNs)
AS-GBXSCUST(2,370 ASNs)
AS-REALROUTE(4,267 ASNs)
AS-OCCAID6(19,611 ASNs)
AS-OCCAID6-CUSTOMERS(19,611 ASNs)
AS-INTEROUTE(43,471 ASNs)
AS-NIXSK-RSCLIENTS(55,989 ASNs)
AS47627:AS-NIXSK-RSCLIENTS(56,033 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)
AS30781:AS-JAGUAR-PEERING-AMS-IX(78,176 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-NIXCZ-RSCLIENTS(81,401 ASNs)
AS208060:AS-PEERS(81,401 ASNs)
AS47110:AS-PEERS(81,401 ASNs)
AS30781:AS-JAGUAR-PEERING-V6-LINX(81,936 ASNs)
AS-1-IX-WAW(82,799 ASNs)
AS47200:AS-NIXCZ-RSCLIENTS(83,073 ASNs)
AS24971:AS-MAI-NIX-PEER(83,081 ASNs)
AS30781:AS-JAGUAR-PEERING-V6-AMS-IX(83,547 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
22 unique paths, avg length 1.9
AS Looking Glass
Upstream paths (matching graph above)
All 22 Upstream Paths
Complete list of all observed paths
AS43542 IPv4 Address Subnets (1)
| 78.156.128.0/19 | 🇨🇿 CZ | CZ-OPTONET-20070816 | OptoNet-AS |
AS43542 IPv6 Address Subnets (1)
| 2a00:d940::/32 | 🇨🇿 CZ | CZ-OPTONET-IPv6_20120412 | OptoNet-AS |