Routing security

AS3372 MCI-ASN

Unclassified ARIN

RPKI valid 3% 3 of 108 announcements

RPKI invalid 0 none

No ROA 105 not covered by any ROA

IRR registered 3% 105 missing · 0 other origin

ROAs 5 authorising this AS

Announcements

What this network originates

108 observed

Every prefix observed with AS3372 as its origin, checked against RPKI and the IRR. Problems sort first.

Prefix	RPKI	IRR	Vantage points
63.39.160.0/20	No ROA	No IRR	52
63.39.176.0/20	No ROA	No IRR	52
63.39.192.0/20	No ROA	No IRR	52
63.39.240.0/20	No ROA	No IRR	52
108.11.64.0/18	No ROA	No IRR	52
151.205.32.0/19	No ROA	No IRR	52
165.122.0.0/16	No ROA	No IRR	52
165.122.0.0/19	No ROA	No IRR	51
165.122.160.0/19	No ROA	No IRR	51
166.32.0.0/20	No ROA	No IRR	52
166.32.16.0/20	No ROA	No IRR	52
166.32.48.0/20	No ROA	No IRR	52
166.32.56.0/24	No ROA	No IRR	52
166.32.128.0/19	No ROA	No IRR	52
166.32.160.0/20	No ROA	No IRR	52
166.32.240.0/20	No ROA	No IRR	52
166.33.0.0/19	No ROA	No IRR	52
166.33.11.0/24	No ROA	No IRR	52
166.33.32.0/20	No ROA	No IRR	52
166.33.48.0/21	No ROA	No IRR	52
166.33.52.0/22	No ROA	No IRR	52
166.33.56.0/21	No ROA	No IRR	52
166.33.64.0/19	No ROA	No IRR	52
166.33.96.0/19	No ROA	No IRR	52
166.33.160.0/20	No ROA	No IRR	52
166.33.176.0/20	No ROA	No IRR	52
166.33.192.0/20	No ROA	No IRR	52
166.34.128.0/17	No ROA	No IRR	52
166.35.128.0/17	No ROA	No IRR	52
166.36.0.0/20	No ROA	No IRR	52
166.36.16.0/21	No ROA	No IRR	52
166.36.24.0/21	No ROA	No IRR	52
166.36.80.0/21	No ROA	No IRR	52
166.36.88.0/21	No ROA	No IRR	52
166.37.0.0/18	No ROA	No IRR	52
166.37.96.0/19	No ROA	No IRR	52
166.38.34.0/24	No ROA	No IRR	52
166.38.38.0/24	No ROA	No IRR	52
166.38.52.0/24	No ROA	No IRR	52
166.38.53.0/24	No ROA	No IRR	52
166.38.76.0/22	No ROA	No IRR	52
166.38.160.0/21	No ROA	No IRR	52
166.38.163.0/24	No ROA	No IRR	52
166.38.168.0/21	No ROA	No IRR	52
166.38.176.0/24	No ROA	No IRR	52
166.38.178.0/24	No ROA	No IRR	52
166.38.179.0/24	No ROA	No IRR	52
166.38.180.0/24	No ROA	No IRR	52
166.38.181.0/24	No ROA	No IRR	52
166.38.182.0/24	No ROA	No IRR	52
166.38.183.0/24	No ROA	No IRR	52
166.38.188.0/24	No ROA	No IRR	52
166.38.189.0/24	No ROA	No IRR	52
166.38.190.0/24	No ROA	No IRR	52
166.38.191.0/24	No ROA	No IRR	52
166.38.192.0/19	No ROA	No IRR	52
166.38.192.0/20	No ROA	No IRR	52
166.38.208.0/20	No ROA	No IRR	52
166.38.224.0/20	No ROA	No IRR	52
166.39.0.0/20	No ROA	No IRR	52
166.39.64.0/20	No ROA	No IRR	52
166.39.80.0/20	No ROA	No IRR	52
166.39.116.0/22	No ROA	No IRR	52
166.39.120.0/21	No ROA	No IRR	52
166.39.128.0/20	No ROA	No IRR	52
166.39.144.0/21	No ROA	No IRR	52
166.39.152.0/21	No ROA	No IRR	52
166.39.208.0/20	No ROA	No IRR	52
166.40.112.0/20	No ROA	No IRR	52
166.40.161.0/24	No ROA	No IRR	52
166.40.162.0/24	No ROA	No IRR	52
166.40.163.0/24	No ROA	No IRR	52
166.40.164.0/23	No ROA	No IRR	52
166.40.166.0/23	No ROA	No IRR	52
166.40.169.0/24	No ROA	No IRR	52
166.40.172.0/23	No ROA	No IRR	52
166.40.216.0/21	No ROA	No IRR	52
166.41.16.0/20	No ROA	No IRR	52
166.41.32.0/19	No ROA	No IRR	52
166.41.144.0/20	No ROA	No IRR	52
166.41.160.0/20	No ROA	No IRR	52
166.41.168.0/22	No ROA	No IRR	51
166.41.176.0/20	No ROA	No IRR	52
166.41.192.0/20	No ROA	No IRR	52
166.43.144.0/20	No ROA	No IRR	52
166.43.160.0/20	No ROA	No IRR	52
166.43.176.0/20	No ROA	No IRR	52
166.46.112.0/20	No ROA	No IRR	52
166.46.160.0/20	No ROA	No IRR	52
166.46.176.0/20	No ROA	No IRR	52
166.46.192.0/20	No ROA	No IRR	52
166.46.224.0/20	No ROA	No IRR	52
166.47.144.0/20	No ROA	No IRR	52
166.47.160.0/20	No ROA	No IRR	52
166.47.240.0/20	No ROA	No IRR	52
166.50.80.0/20	No ROA	No IRR	52
166.56.32.0/19	No ROA	No IRR	52
166.56.64.0/19	No ROA	No IRR	52
166.56.96.0/19	No ROA	No IRR	52
166.56.248.0/23	No ROA	No IRR	52

RPKI · ROAs

Route origin authorisations

5 ROAs

Signed statements by address holders that AS3372 may originate these prefixes, up to the maximum length shown.

Prefix	Max length	Trust anchor
69.96.0.0/20	/20	ARIN
69.96.16.0/20	/20	ARIN
69.96.32.0/20	/20	ARIN
69.96.48.0/20	/20	ARIN
69.103.0.0/16	/16	ARIN

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

5 objects · 2 not announced

Route objects naming AS3372 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.

Prefix	Source	Description	Maintainer	Changed	Routing
69.96.0.0/20	ARIN	Verizon Business	`MNT-MCICS`	2026-10-01	Not announced
69.103.0.0/16	ARIN	Verizon Business	`MNT-MCICS`	2026-10-01	Not announced
69.96.16.0/20	ARIN	Verizon Business	`MNT-MCICS`	2026-10-01	Announced
69.96.32.0/20	ARIN	Verizon Business	`MNT-MCICS`	2026-10-01	Announced
69.96.48.0/20	ARIN	Verizon Business	`MNT-MCICS`	2026-10-01	Announced

IRR

AS-sets

The as-set is what upstreams expand to build this network's customer filter. Sets that list AS3372 directly show who expects to carry it.

No as-set lists this AS directly.

RPKI from rpki-client, validated 2026-10-28 12:15 UTC. IRR from ARIN, RADB, RIPE, ALTDB, APNIC, LACNIC, NTTCOM, AFRINIC, collected 2026-10-28. Cross-check on bgp.he.net.