AS7377 UCSD - University of California, San Diego
🇺🇸ARINassigned
Announced Prefixes (BGP)
20total
18 IPv42 IPv6
IPv4 Addresses
Allocated (RIR)12.9M
Announced (BGP)12.9M
IPv6 Addresses
Allocated (RIR)7.9×10²⁸
Announced (BGP)9.9×10²⁸
Routing hygiene
Score 40/100 · Medium riskRPKI ROA coverage
30%
no RPKI invalid prefixes
IRR route objects
90%
2 prefixes registered for another origin
Hijack signals
0
0 announced against others' ROAs, 0 own announced by others
Upstreams
3
diversity 23/100
- 70% of announced prefixes (14 of 20) have no valid ROA
- 2 prefixes registered in IRR route objects for another active network and not authorized by a ROA
- Routes concentrated on one upstream (88% of routes)
Based on 20 announced prefixes, updated daily (2026-10-16). How the score works · RPKI explained
Announced Prefixes
(BGP)20|
Prefix | RPKI | IRR | Last Seen |
|---|---|---|---|
| No ROA | Other IRR | - | |
| No ROA | Other IRR | - | |
| No ROA | Other IRR | - | |
| No ROA | Other IRR | - | |
| No ROA | - | - | |
| No ROA | - | - | |
| Valid | ARINOther IRR | - | |
| Valid | ARINOther IRR | - | |
| Valid | ARINOther IRR | - | |
| Valid | ARINOther IRR | - |
1-10 of 20
1 / 2
Allocated Prefixes
(RIR)17Prefix | Country | RIR | Status |
|---|---|---|---|
| 44.0.0.0/9 | 🇺🇸 US | ARIN | allocated |
| 44.128.0.0/10 | 🇺🇸 US | ARIN | allocated |
| 69.166.11.0/24 | 🇺🇸 US | ARIN | allocated |
| 69.196.32.0/19 | 🇺🇸 US | ARIN | allocated |
| 128.54.0.0/16 | 🇺🇸 US | ARIN | allocated |
| 132.239.0.0/16 | 🇺🇸 US | ARIN | allocated |
| 137.110.0.0/16 | 🇺🇸 US | ARIN | allocated |
| 169.228.0.0/16 | 🇺🇸 US | ARIN | allocated |
| 192.135.237.0/24 | 🇺🇸 US | ARIN | allocated |
| 192.135.238.0/24 | 🇺🇸 US | ARIN | allocated |
1-10 of 17
1 / 2
All 20 announced prefixes of AS7377 →
Downstream Customers(1)
| ASN | Name |
|---|---|
| AS211585 | 🇺🇸MAIYUN Maiyun Zhang |
BGP Neighbours
(seen in AS paths)Upstreams (3)
Networks AS7377 hands its own prefixes to: transit providers, or peers at an exchange.
Downstreams (1)
Networks whose own prefixes AS7377 passes on: usually its customers.
- AS26397The Regents Of The University Of California University Of California, San Diego2
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
- How to run an ASPA checkVerify the upstream providers listed above
- 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/7377Returns ASN details, announced prefixes, and BGP routing data.
curl -s "https://api.ipctl.io/v1/asn/7377" | jq