Autonomous system profile

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

AS26661

Announcement observedARIN

Jeffco Public Schools · JCPS-ASN

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

Last active10/1/2026, 21:22:39Snapshot expired

View network topology RDAP registration

ASN: AS26661
Registration country: United States
Name: Jeffco Public Schools
Abbreviation: JCPS-ASN
Registration date: 2/14/2011, 19:02:51
Status: Announcement observed
RIR: ARIN

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
199.96.184.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/1/2026, 16:00:00	✓	×	Currently valid
199.96.184.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/1/2026, 16:00:00	✓	×	Currently valid
199.96.188.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/1/2026, 16:00:00	✓	×	Currently valid

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

Registration and sources

Organization: Jeffco Public Schools
RIR: ARIN
Registration country: United States
Registration date: 2/14/2011, 19:02:51
Abuse contact: abuse@jeffco.k12.co.us

Snapshot trend

10/1/2026, 21:22:393 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 · iana-rdap-asn-bootstrap · rir-rdap-asn