asn.dev

Routing security

AS1819 DCM-CABLE

Unclassified ARIN

RPKI valid 22% 4 of 18 announcements
RPKI invalid 0 none
No ROA 14 not covered by any ROA
IRR registered 67% 5 missing · 1 other origin
ROAs 7 authorising this AS

Announcements

What this network originates

18 observed

Every prefix observed with AS1819 as its origin, checked against RPKI and the IRR. Problems sort first.

PrefixRPKIIRRVantage points
38.35.64.0/19No ROANo IRR52
104.160.236.0/22No ROANo IRR51
198.212.52.0/22No ROANo IRR51
204.10.176.0/21No ROAIRR other origin52
38.137.128.0/20No ROAIRR52
38.137.144.0/20No ROAIRR52
198.212.52.0/23No ROAIRR51
198.212.54.0/23No ROAIRR51
198.212.55.0/24No ROAIRR51
204.10.176.0/22No ROAIRR51
204.10.176.0/24No ROAIRR51
204.10.180.0/23No ROAIRR51
204.10.182.0/24No ROAIRR51
204.10.183.0/24No ROAIRR51
184.179.48.0/22RPKI validNo IRR51
184.179.52.0/22RPKI validNo IRR51
98.163.82.0/23RPKI validIRR51
174.66.106.0/23RPKI validIRR51

RPKI · ROAs

Route origin authorisations

7 ROAs

Signed statements by address holders that AS1819 may originate these prefixes, up to the maximum length shown.

PrefixMax lengthTrust anchor
98.163.82.0/23/23ARIN
174.66.106.0/23/23ARIN
174.66.106.0/24/24ARIN
174.66.107.0/24/24ARIN
184.179.48.0/21/21ARIN
184.179.48.0/22/22ARIN
184.179.52.0/22/22ARIN

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

18 objects · 6 not announced

Route objects naming AS1819 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
38.137.128.0/19RADBRoute Registered for Cogent Communications Customer DCM Cable, Inc. dba Bridgenet CommunicationsMAINT-AS1742023-11-13Not announced
174.66.106.0/24RADBGAINMAINT-AS227732023-11-13Not announced
174.66.107.0/24RADBGAINMAINT-AS227732023-11-13Not announced
204.10.177.0/24RADBGAIN #ECR000001350769MAINT-AS227732023-11-13Not announced
204.10.178.0/23RADBGAIN #ECR000001350769MAINT-AS227732023-11-13Not announced
204.10.180.0/22RADBGAIN #ECR000001350769MAINT-AS227732023-11-13Not announced
38.137.128.0/20RADBV4-PUB-CB-ANNOUNCEDMAINT-AS227732023-11-13Announced
38.137.144.0/20RADBV4-PUB-CB-ANNOUNCEDMAINT-AS227732023-11-13Announced
98.163.82.0/23RADBV4-PUB-CB-ANNOUNCEDMAINT-AS227732023-11-13Announced
174.66.106.0/23RADBGAINMAINT-AS227732023-11-13Announced
198.212.52.0/23RADBGAIN #ECR000001350769MAINT-AS227732023-11-13Announced
198.212.54.0/23RADBGAIN #ECR000001350769MAINT-AS227732023-11-13Announced
198.212.55.0/24RADBGAIN #ECR000001350769MAINT-AS227732023-11-13Announced
204.10.176.0/22RADBGAIN #ECR000001350769MAINT-AS227732023-11-13Announced
204.10.176.0/24RADBGAIN #ECR000001350769MAINT-AS227732023-11-13Announced
204.10.180.0/23RADBGAIN #ECR000001350769MAINT-AS227732023-11-13Announced
204.10.182.0/24RADBGAIN #ECR000001350769MAINT-AS227732023-11-13Announced
204.10.183.0/24RADBGAIN #ECR000001350769MAINT-AS227732023-11-13Announced

IRR

AS-sets

The as-set is what upstreams expand to build this network's customer filter. Sets that list AS1819 directly show who expects to carry it.

AS-setWhereRelationship
AS-COX-SOUTHEASTRADBLists AS1819 as a direct member
AS-GRUARINLists AS1819 as a direct member
AS-GRUCOMARINLists AS1819 as a direct member

RPKI from rpki-client, validated 2026-10-27 12:06 UTC. IRR from ARIN, RADB, RIPE, ALTDB, APNIC, LACNIC, NTTCOM, AFRINIC, collected 2026-10-27. Cross-check on bgp.he.net.