Autonomous system
AS26661 JCPS-ASN - Jeffco Public Schools
Unclassified ARIN
Summary
Jeffco Public Schools
education k12 district us
The AS handle JCPS-ASN is held by Jeffco Public Schools.
What it's used for
- The address space carries the district's internal network, identified by the netname
JCPS-V4and registrants includingJeffco Public Schools,JCPS Abuse, andJCPS Tech. - The AS announces a single IPv4 prefix,
199.96.184.0/21, comprising 2048 addresses, with 0 IPv6 prefixes. - With only 1 observed neighbour, the routing profile indicates a direct peering or transit relationship typical of a standalone institutional network rather than a transit provider.
Notable
- The RDAP registrants align perfectly with the AS holder, confirming the space is owned and operated directly by the school district.
- The inventory consists of a single contiguous /21 block, representing a standard allocation for a mid-sized organizational network.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Transit providers
1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS14041 | University Corporation for Atmospheric Research | 187 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-11, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 1 prefixes · 2.05K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 1 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS26661- Registry name
- JCPS-ASN
- Registrant
- Jeffco Public Schools
- Abuse contact
- abuse@jeffco.k12.co.us
- Registered
- 2011-02-14
- Last changed
- 2012-02-24
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 100% valid · 3 valid, 0 with no ROA
- ROAs
- 2 authorising AS26661
- ASPA
- no ASPA record
- IRR
- 100% registered · 3 of 3 announcements
- Route objects
- 2 naming AS26661
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 453 networks and 1,846 prefixes, as published 2026-11-12. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere