AS2153 CENIC-2153 - CENIC
🇺🇸ARINassigned
Announced Prefixes (BGP)
19total
17 IPv42 IPv6
IPv4 Addresses
Allocated (RIR)0
Announced (BGP)4,864
IPv6 Addresses
Allocated (RIR)0
Announced (BGP)3.1×10²⁶
Routing hygiene
Score 67/100 · High riskRPKI ROA coverage
42.1%
5 prefixes RPKI invalid
IRR route objects
57.9%
8 prefixes registered for another origin
Hijack signals
5
5 announced against others' ROAs, 0 own announced by others
Upstreams
3
diversity 21/100
- Announces 5 prefixes that RPKI assigns to another network (possible hijack or misconfiguration)
- 58% of announced prefixes (11 of 19) have no valid ROA, 5 of them RPKI invalid
- Routes concentrated on one upstream (88% of routes)
- 42% of announced prefixes (8 of 19) have no IRR route object for this ASN
Based on 19 announced prefixes, updated daily (2026-10-23). How the score works · RPKI explained
Announced Prefixes
(BGP)19|
Prefix | RPKI | IRR | Last Seen |
|---|---|---|---|
| No ROA | Other IRR | 2026-10-25 | |
132.241.61.0/24MOAS | No ROA | - | 2026-10-25 |
| No ROA | - | 2026-10-25 | |
| No ROA | Other IRR | 2026-10-25 | |
| Valid | ARINOther IRR | 2026-10-25 | |
| Valid | ARINOther IRR | 2026-10-25 | |
| Valid | ARINOther IRR | 2026-10-25 | |
| Valid | ARINOther IRR | 2026-10-25 | |
| No ROA | - | 2026-10-25 | |
| Valid | ARINOther IRR | 2026-10-25 |
1-10 of 19
1 / 2
All 19 announced prefixes of AS2153 →
BGP Neighbours
(seen in AS paths)Upstreams (2)
Networks AS2153 hands its own prefixes to: transit providers, or peers at an exchange.
Downstreams (18)
Networks whose own prefixes AS2153 passes on: usually its customers.
- AS2152CENIC604
- AS195San Diego Supercomputer Center35
- AS11096FloridaNet16
- AS257Navy Network Information Center (NNIC)4
- AS6192University Of California, Davis4
- AS52University Of California, Los Angeles3
- AS26397The Regents Of The University Of California University Of California, San Diego3
- AS32361UltraLight3
- AS6106University Of California, Riverside2
- AS16Lawrence Berkeley National Laboratory1
- AS24National Aeronautics And Space Administration1
- AS101University Of Washington1
- AS299University Of California, Irvine1
- AS5653University Of California San Francisco1
- AS7377University Of California, San Diego1
- AS22323University Of California, Merced1
- AS46985The Regents Of The University Of California University Of California, San Diego1
- AS396465California State University, Sacramento1
Other adjacent networks (8)
Adjacent to AS2153 in the transit part of AS paths: peers, providers or customers.
- AS7575Australian Academic And Research Network (AARNet)732
- AS567Los Nettos41
- AS2907Research Organization Of Information And Systems, National Institute Of Informatics12
- AS38022REANNZ National Research And Education Network9
- AS17579KISTI5
- AS40498New Mexico Lambda Rail4
- AS6509CANARIE1
- AS14041University Corporation For Atmospheric Research1
ASPA
No ASPA
External Links
Learn more
- What is an ASN?Autonomous systems, ASN ranges and how they are assigned
- RPKI and route origin validationWhat the RPKI badges on the prefix list mean
- ASPA explainedWhy AS2153 should publish an ASPA object
- IPv4 transfers in the ARIN regionMonthly volume and the latest registry transfers
- ASN data in AI agents and SIEMMCP server and API integrations
API
Open https://api.ipctl.io/v1/asn/2153Returns ASN details, announced prefixes, and BGP routing data.
curl -s "https://api.ipctl.io/v1/asn/2153" | jq