asn.dev

Routing security

AS31246 NETBOX-AS O2 Czech Republic, a.s.

Unclassified RIPE

RPKI valid 100% 7 of 7 announcements
RPKI invalid 0 none
No ROA 0 not covered by any ROA
IRR registered 100% 0 missing · 0 other origin
ROAs 11 authorising this AS

Announcements

What this network originates

7 observed

Every prefix observed with AS31246 as its origin, checked against RPKI and the IRR. Problems sort first.

PrefixRPKIIRRVantage points
2a0a:cac0::/29RPKI validIRR30
46.39.160.0/19RPKI validIRR53
83.240.0.0/17RPKI validIRR53
95.82.128.0/18RPKI validIRR53
185.51.240.0/22RPKI validIRR52
213.155.224.0/19RPKI validIRR53
2001:4cc8::/31RPKI validIRR30

RPKI · ROAs

Route origin authorisations

11 ROAs

Signed statements by address holders that AS31246 may originate these prefixes, up to the maximum length shown.

PrefixMax lengthTrust anchor
46.39.160.0/19/19RIPENCC
83.240.0.0/17/17RIPENCC
95.82.128.0/18/18RIPENCC
185.51.240.0/22/22RIPENCC
193.176.32.0/24/24RIPENCC
194.164.239.0/24/24RIPENCC
195.200.23.0/24/24RIPENCC
213.155.224.0/19/19RIPENCC
2001:4cc8::/31/31RIPENCC
2a0a:cac0::/29/29RIPENCC
2a14:2040::/29/29RIPENCC

ROA-based and RPKI-valid-only prefix lists for routers are on asn.ipinfo.app.

RPKI · ASPA

Declared transit providers

No ASPA record This network has not published an ASPA object. ASPA lets a network sign the list of its transit providers, so routers can reject paths that route through anyone else (route leaks). Only a few thousand networks publish one so far, so its absence is normal.

IRR

Registered route objects

12 objects · 5 not announced

Route objects naming AS31246 as origin, across RADb, the RIR registries, ALTDB and NTTCOM. Objects that are registered but not announced come first: a stale object lets anyone who can spoof this origin through an IRR-built filter.

PrefixSourceDescriptionMaintainerChangedRouting
83.240.76.0/23RIPENETBOXNETBOX-MNT2021-05-25Not announced
193.176.32.0/24RIPEFTCZLIR-CZ-TOMAN-1-MNT2025-08-06Not announced
194.164.239.0/24RIPEFTCZLIR-CZ-TOMAN-1-MNT2024-05-08Not announced
195.200.23.0/24RIPEFTCZLIR-CZ-TOMAN-1-MNT2024-04-04Not announced
2a14:2040::/29RIPEFTCZLIR-CZ-TOMAN-1-MNT2024-03-18Not announced
46.39.160.0/19RIPENETBOXKTVTRINEC-MNT2023-08-11Announced
83.240.0.0/17RIPENETBOXNETBOX-MNT2004-11-19Announced
95.82.128.0/18RIPENETBOXNETBOX-MNT2008-12-13Announced
185.51.240.0/22RIPENETBOXNETBOX-MNT2020-01-14Announced
213.155.224.0/19RIPECZ-OPAVANETOPAVANET_CZ_MNT2008-11-02Announced
2001:4cc8::/31RIPENETBOXNETBOX-MNT2021-01-21Announced
2a0a:cac0::/29RIPE—OPAVANET_CZ_MNT2017-05-19Announced

IRR

AS-sets

The as-set is what upstreams expand to build this network's customer filter. Sets that list AS31246 directly show who expects to carry it.

AS-setWhereRelationship
AS-43413_NT-NIXRIPELists AS31246 as a direct member
AS-COMSOURCERIPELists AS31246 as a direct member
AS-DIALTELECOMRIPELists AS31246 as a direct member
AS-DIALTELECOM-SIXRIPELists AS31246 as a direct member
AS-ENERGOTEL_SIX_PEERSRIPELists AS31246 as a direct member
AS-NETBOX-CZRIPELists AS31246 as a direct member
AS-NETBOX-CZNIXRIPELists AS31246 as a direct member
AS-NETBOX-CZPEERINGCZRIPELists AS31246 as a direct member
AS-NETBOX-SK-SIXRIPELists AS31246 as a direct member
AS-SIXSK-MEMBERSRIPELists AS31246 as a direct member
AS-SIXSTIP-SETRIPELists AS31246 as a direct member
AS-TO2-NIX-PEERRIPELists AS31246 as a direct member
AS-TRANSCZRIPELists AS31246 as a direct member
AS174:AS-COGC-034RADBLists AS31246 as a direct member
AS42000:AS-NIXCZ-PEERINGSRIPELists AS31246 as a direct member
AS42000:AS-SIXSK-PEERINGSRIPELists AS31246 as a direct member
AS5578:AS-SIXPEERSRIPELists AS31246 as a direct member

RPKI from rpki-client, validated 2026-11-02 13:01 UTC. IRR from ARIN, RADB, RIPE, ALTDB, APNIC, LACNIC, NTTCOM, AFRINIC, collected 2026-11-02. Cross-check on bgp.he.net.