Autonomous system profile

Review registration details, announced prefixes, network relationships and historical snapshots.

AS22637

No announcement in snapshotARIN

C-R-T - Zayo Bandwidth · C-R-T

This profile is assembled from CHA.LA's normalized registration, routing and observation snapshots.

Last active10/1/2026, 10:34:54Snapshot expired

View network topology RDAP registration

ASN: AS22637
Registration country: United States
Name: C-R-T - Zayo Bandwidth
Abbreviation: C-R-T
Registration date: 10/26/2001, 04:00:00
Status: No announcement in snapshot
RIR: ARIN

Network relationships and announced prefixes

ASN / prefix	Description / organization	ASN registration country	Observation window start	Latest observation	IPv4	IPv6	Status
AS6461Upstream · observed weight 816	ZAYO-6461 - Zayo BandwidthNetwork relationship data	United States	8/21/2019, 00:00:00	10/1/2026, 00:00:00	✓1,234	×	Currently observed

Relationships are observed AS_PATH adjacencies. Coverage is partial; direction does not establish a commercial relationship.

Registration and sources

Organization: C-R-T - Zayo Bandwidth
RIR: ARIN
Registration country: United States
Registration date: 10/26/2001, 04:00:00
Abuse contact: abuse@zayo.com

Snapshot trend

10/1/2026, 10:34:540 v40 v61 Upstream · 0 Uncertain

ASN route snapshotThis page reads collected ASN, prefix, relationship and history data. External interfaces are used for initial collection and scheduled refreshes.Source keys: cha-la-external-routing · rir-rdap-asn · iana-rdap-asn-bootstrap