AS557 UMAINE-SYS-AS - University of Maine System
🇺🇸ARINassigned
Announced Prefixes (BGP)
18total
17 IPv41 IPv6
IPv4 Addresses
Allocated (RIR)292,096
Announced (BGP)292,864
IPv6 Addresses
Allocated (RIR)7.9×10²⁸
Announced (BGP)7.9×10²⁸
Routing hygiene
Score 11/100 · Low riskRPKI ROA coverage
77.8%
no RPKI invalid prefixes
IRR route objects
88.9%
no origin mismatches
Hijack signals
0
0 announced against others' ROAs, 0 own announced by others
Upstreams
4
diversity 70/100
- 22% of announced prefixes (4 of 18) have no valid ROA
Based on 18 announced prefixes, updated daily (2026-10-27). How the score works · RPKI explained
Announced Prefixes
(BGP)18|
Prefix | RPKI | IRR | Last Seen |
|---|---|---|---|
| Valid | ARIN | 2026-10-27 | |
| Valid | ARIN | 2026-10-27 | |
| Valid | ARIN | 2026-10-27 | |
| Valid | ARIN | 2026-10-27 | |
| Valid | ARIN | 2026-10-27 | |
| Valid | ARIN | 2026-10-27 | |
| Valid | ARIN | 2026-10-27 | |
| No ROA | - | 2026-10-27 | |
| No ROA | Other IRR | 2026-10-27 | |
| No ROA | Other IRR | 2026-10-27 |
1-10 of 18
1 / 2
Allocated Prefixes
(RIR)15Prefix | Country | RIR | Status |
|---|---|---|---|
| 64.45.64.0/18 | 🇺🇸 US | ARIN | allocated |
| 65.18.0.0/18 | 🇺🇸 US | ARIN | allocated |
| 65.18.64.0/19 | 🇺🇸 US | ARIN | allocated |
| 65.18.96.0/20 | 🇺🇸 US | ARIN | allocated |
| 130.111.0.0/16 | 🇺🇸 US | ARIN | allocated |
| 141.114.0.0/16 | 🇺🇸 US | ARIN | allocated |
| 169.244.0.0/16 | 🇺🇸 US | ARIN | allocated |
| 198.182.161.0/24 | 🇺🇸 US | ARIN | allocated |
| 198.182.162.0/23 | 🇺🇸 US | ARIN | allocated |
| 198.202.151.0/24 | 🇺🇸 US | ARIN | allocated |
1-10 of 15
1 / 2
All 18 announced prefixes of AS557 →
Downstream Customers(1)
| ASN | Name |
|---|---|
| AS14789 | 🇺🇸CLOUDFLARENET - Cloudflare, Inc. |
BGP Neighbours
(seen in AS paths)Upstreams (3)
Networks AS557 hands its own prefixes to: transit providers, or peers at an exchange.
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/557Returns ASN details, announced prefixes, and BGP routing data.
curl -s "https://api.ipctl.io/v1/asn/557" | jq