Autonomous system profile

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

AS11901

Announcement observedARIN

COSWAN - County of Sacramento · COSWAN

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

Last active9/30/2026, 05:46:13Snapshot expired

View network topology RDAP registration

ASN: AS11901
Registration country: United States
Name: COSWAN - County of Sacramento
Abbreviation: COSWAN
Registration date: 5/29/2007, 20:54:34
Status: Announcement observed
RIR: ARIN

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
208.79.244.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 00:00:00	9/30/2026, 00:00:00	✓	×	Currently valid
208.79.246.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 00:00:00	9/30/2026, 00:00:00	✓	×	Currently valid

BGP prefixes have no geographic country; the column is marked not applicable.

Registration and sources

Organization: COSWAN - County of Sacramento
RIR: ARIN
Registration country: United States
Registration date: 5/29/2007, 20:54:34
Abuse contact: cosdns@saccounty.net

Snapshot trend

9/30/2026, 05:46:132 v40 v63 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