asn.dev

Routing security

AS213671 FOURTHUTILITY-AS

Residential RIPE

RPKI valid 77% 30 of 39 announcements
RPKI invalid 0 none
No ROA 9 not covered by any ROA
IRR registered 100% 0 missing · 0 other origin
ROAs 13 authorising this AS

Announcements

What this network originates

39 observed

Every prefix observed with AS213671 as its origin, checked against RPKI and the IRR. Problems sort first.

PrefixRPKIIRRVantage points
149.5.59.0/24No ROAIRR52
149.13.184.0/24No ROAIRR52
154.47.7.0/24No ROAIRR52
154.51.80.0/24No ROAIRR52
154.51.81.0/24No ROAIRR52
154.51.84.0/24No ROAIRR52
154.51.85.0/24No ROAIRR52
154.51.86.0/24No ROAIRR52
154.51.87.0/24No ROAIRR52
2a05:b100:1000::/36RPKI validIRR30
2a05:b100:2000::/36RPKI validIRR30
2a05:b100:3000::/36RPKI validIRR30
38.44.104.0/24RPKI validIRR53
38.44.105.0/24RPKI validIRR53
38.44.106.0/24RPKI validIRR53
38.44.107.0/24RPKI validIRR53
38.49.104.0/24RPKI validIRR52
81.2.136.0/24RPKI validIRR53
81.2.137.0/24RPKI validIRR53
81.2.138.0/24RPKI validIRR53
81.2.139.0/24RPKI validIRR53
81.2.140.0/24RPKI validIRR52
81.2.141.0/24RPKI validIRR52
82.129.8.0/24RPKI validIRR52
95.142.148.0/24RPKI validIRR52
149.119.0.0/24RPKI validIRR51
149.119.1.0/24RPKI validIRR51
149.119.2.0/24RPKI validIRR51
149.119.3.0/24RPKI validIRR51
150.237.32.0/24RPKI validIRR52
150.237.33.0/24RPKI validIRR52
150.237.34.0/24RPKI validIRR52
150.237.35.0/24RPKI validIRR52
150.237.36.0/24RPKI validIRR52
150.237.37.0/24RPKI validIRR52
150.237.38.0/24RPKI validIRR52
150.237.39.0/24RPKI validIRR52
192.48.111.0/24RPKI validIRR53
213.146.161.0/24RPKI validIRR52

RPKI · ROAs

Route origin authorisations

13 ROAs

Signed statements by address holders that AS213671 may originate these prefixes, up to the maximum length shown.

PrefixMax lengthTrust anchor
38.44.104.0/22/24ARIN
38.49.104.0/21/24ARIN
81.2.136.0/22/24RIPENCC
81.2.140.0/23/24RIPENCC
82.129.8.0/24/24RIPENCC
95.142.148.0/24/24RIPENCC
149.119.0.0/22/24ARIN
150.237.32.0/19/24RIPENCC
192.48.111.0/24/24RIPENCC
213.146.161.0/24/24RIPENCC
2a05:b100:1000::/36/36RIPENCC
2a05:b100:2000::/36/36RIPENCC
2a05:b100:3000::/36/36RIPENCC

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

52 objects · 13 not announced

Route objects naming AS213671 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
38.49.104.0/21ARINRoute Registered for Cogent Communications Customer - 4TH UTILITY HOLDINGS LIMITEDMNT-COGC2026-05-05Not announced
38.49.105.0/24RADBRegistered for Cogent Communications Customer - 4TH UTILITY HOLDINGS LIMITEDMAINT-AS1742026-05-05Not announced
38.49.106.0/24RADBRegistered for Cogent Communications Customer - 4TH UTILITY HOLDINGS LIMITEDMAINT-AS1742026-05-05Not announced
38.49.107.0/24RADBRegistered for Cogent Communications Customer - 4TH UTILITY HOLDINGS LIMITEDMAINT-AS1742026-05-05Not announced
38.49.108.0/24RADBRegistered for Cogent Communications Customer - 4TH UTILITY HOLDINGS LIMITEDMAINT-AS1742026-05-05Not announced
38.49.109.0/24RADBRegistered for Cogent Communications Customer - 4TH UTILITY HOLDINGS LIMITEDMAINT-AS1742026-05-05Not announced
38.49.110.0/24RADBRegistered for Cogent Communications Customer - 4TH UTILITY HOLDINGS LIMITEDMAINT-AS1742026-05-05Not announced
38.49.111.0/24RADBRegistered for Cogent Communications Customer - 4TH UTILITY HOLDINGS LIMITEDMAINT-AS1742026-05-05Not announced
149.119.0.0/22ARINRoute Registered for Cogent Communications Customer - 4TH UTILITY HOLDINGS LIMITEDMNT-COGC2026-05-05Not announced
150.237.32.0/21RIPE—FOURTHUTIL-MNT2026-08-01Not announced
154.51.80.0/23RADBRegistered for Cogent Communications Customer - 4TH UTILITY HOLDINGS LIMITEDMAINT-AS1742025-11-24Not announced
154.51.84.0/23RADBRegistered for Cogent Communications Customer - 4TH UTILITY HOLDINGS LIMITEDMAINT-AS1742025-11-24Not announced
154.51.86.0/23RADBRegistered for Cogent Communications Customer - 4TH UTILITY HOLDINGS LIMITEDMAINT-AS1742025-11-24Not announced
38.44.104.0/24ARINObject Registered for Cogent Customer - 4th UtilityMNT-COGC2026-03-17Announced
38.44.105.0/24ARINObject Registered for Cogent Customer - 4th UtilityMNT-COGC2026-03-17Announced
38.44.106.0/24ARINObject Registered for Cogent Customer - 4th UtilityMNT-COGC2026-03-17Announced
38.44.107.0/24ARINObject Registered for Cogent Customer - 4th UtilityMNT-COGC2026-03-17Announced
38.49.104.0/24RADBRegistered for Cogent Communications Customer - 4TH UTILITY HOLDINGS LIMITEDMAINT-AS1742026-05-05Announced
81.2.136.0/24RADBRoute Registered for Cogent Communications Customer - 4TH UTILITY HOLDINGS LIMITEDMAINT-AS1742025-11-04Announced
81.2.137.0/24RADBRoute Registered for Cogent Communications Customer - 4TH UTILITY HOLDINGS LIMITEDMAINT-AS1742025-11-04Announced
81.2.138.0/24RADBRoute Registered for Cogent Communications Customer - 4TH UTILITY HOLDINGS LIMITEDMAINT-AS1742025-11-04Announced
81.2.139.0/24RADBRoute Registered for Cogent Communications Customer - 4TH UTILITY HOLDINGS LIMITEDMAINT-AS1742025-11-04Announced
81.2.140.0/24RADBRoute Registered for Cogent Communications Customer - 4TH UTILITY HOLDINGS LIMITEDMAINT-AS1742025-11-04Announced
81.2.141.0/24RADBRoute Registered for Cogent Communications Customer - 4TH UTILITY HOLDINGS LIMITEDMAINT-AS1742025-11-04Announced
82.129.8.0/24RADBRoute Registered for Cogent Communications Customer - 4TH UTILITY HOLDINGS LIMITEDMAINT-AS1742025-11-04Announced
95.142.148.0/24RIPE—FOURTHUTIL-MNT2026-05-13Announced
149.5.59.0/24RADBRoute Registered for Cogent Communications Customer - 4TH UTILITY HOLDINGS LIMITEDMAINT-AS1742025-07-31Announced
149.13.184.0/24RADBRegistered for Cogent Communications Customer - 4TH UTILITY HOLDINGS LIMITEDMAINT-AS1742025-03-19Announced
149.119.0.0/24RADBRegistered for Cogent Communications Customer - 4TH UTILITY HOLDINGS LIMITEDMAINT-AS1742026-05-05Announced
149.119.1.0/24RADBRegistered for Cogent Communications Customer - 4TH UTILITY HOLDINGS LIMITEDMAINT-AS1742026-05-05Announced
149.119.2.0/24RADBRegistered for Cogent Communications Customer - 4TH UTILITY HOLDINGS LIMITEDMAINT-AS1742026-05-05Announced
149.119.3.0/24RADBRegistered for Cogent Communications Customer - 4TH UTILITY HOLDINGS LIMITEDMAINT-AS1742026-05-05Announced
150.237.32.0/24RIPE—FOURTHUTIL-MNT2026-07-31Announced
150.237.33.0/24RIPE—FOURTHUTIL-MNT2026-08-01Announced
150.237.34.0/24RIPE—FOURTHUTIL-MNT2026-08-01Announced
150.237.35.0/24RIPE—FOURTHUTIL-MNT2026-08-01Announced
150.237.36.0/24RIPE—FOURTHUTIL-MNT2026-08-01Announced
150.237.37.0/24RIPE—FOURTHUTIL-MNT2026-08-01Announced
150.237.38.0/24RIPE—FOURTHUTIL-MNT2026-08-01Announced
150.237.39.0/24RIPE—FOURTHUTIL-MNT2026-08-01Announced
154.47.7.0/24RADBRegistered for Cogent Communications Customer - 4TH UTILITY HOLDINGS LIMITEDMAINT-AS1742025-03-19Announced
154.51.80.0/24RADBRegistered for Cogent Communications Customer - 4TH UTILITY HOLDINGS LIMITEDMAINT-AS1742025-06-24Announced
154.51.81.0/24RADBRegistered for Cogent Communications Customer - 4TH UTILITY HOLDINGS LIMITEDMAINT-AS1742025-06-24Announced
154.51.84.0/24RADBRegistered for Cogent Communications Customer - 4TH UTILITY HOLDINGS LIMITEDMAINT-AS1742025-06-24Announced
154.51.85.0/24RADBRegistered for Cogent Communications Customer - 4TH UTILITY HOLDINGS LIMITEDMAINT-AS1742025-02-03Announced
154.51.86.0/24RADBRegistered for Cogent Communications Customer - 4TH UTILITY HOLDINGS LIMITEDMAINT-AS1742025-02-03Announced
154.51.87.0/24RADBRegistered for Cogent Communications Customer - 4TH UTILITY HOLDINGS LIMITEDMAINT-AS1742025-02-03Announced
192.48.111.0/24RIPE—FOURTHUTIL-MNT2025-09-02Announced
213.146.161.0/24RADBRoute Registered for Cogent Communications Customer - 4TH UTILITY HOLDINGS LIMITEDMAINT-AS1742025-11-04Announced
2a05:b100:1000::/36RIPE—FOURTHUTIL-MNT2026-03-03Announced
2a05:b100:2000::/36RIPE—FOURTHUTIL-MNT2026-03-03Announced
2a05:b100:3000::/36RIPE—FOURTHUTIL-MNT2026-05-13Announced

IRR

AS-sets

The as-set is what upstreams expand to build this network's customer filter. Sets that list AS213671 directly show who expects to carry it.

AS-setWhereRelationship
AS213671:AS-FOURTHUTILITYRIPELists AS213671 as a direct member
AS2914:AS-EUROPENTTCOMLists AS213671 as a direct member
AS2914:AS-EUROPE-V6NTTCOMLists AS213671 as a direct member

RPKI from rpki-client, validated 2026-10-15 12:09 UTC. IRR from ARIN, RADB, RIPE, ALTDB, APNIC, LACNIC, NTTCOM, AFRINIC, collected 2026-10-15. Cross-check on bgp.he.net.