Autonomous system
AS2153 CENIC-2153
Unclassified ARIN Educational/Research
Summary
Corporation for Education Network Initiatives in California (CENIC)
education research legacy
CENIC-2153 is another autonomous system of the Corporation for Education Network Initiatives in California, operator of the CalREN research and education network.
What it's used for
- Backbone and member connectivity for California's universities, community colleges, K-12 schools, and libraries.
Notable
- An institutional education/research network rather than a commercial provider. See also AS2152, CENIC's larger allocation.
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.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-10, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 10 prefixes · 3.14K addresses IPv6 45 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 55 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS2153- Registry name
- CENIC-2153
- Registrant
- CENIC
- Abuse contact
- abuse@cenic.org
- Registered
- 2024-07-08
- Last changed
- 2024-07-08
- Allocation
- assigned
Declared
PeeringDB profile
- Name
- CENIC / CalREN AS2153
- Also known as
- CalREN-HPR (High-Performance Research)
- Network type
- Educational/Research
- Scope
- Regional
- Traffic ratio
- Not Disclosed
- Peering policy
- Selective
- IRR as-set
AS-CALRENHPR- Present at
- 1 exchanges
- Website
- https://cenic.org
PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.
Routing security
RPKI and IRR
- RPKI
- 57% valid · 8 valid, 6 with no ROA
- ROAs
- 10 authorising AS2153
- ASPA
- no ASPA record
- IRR
- 79% registered · 11 of 14 announcements
- Route objects
- 19 naming AS2153
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: 431 networks and 1,775 prefixes, as published 2026-10-11. 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