AS400337 ASN-NHB - NH Broadband, LLC
🇺🇸ARINassignedASPA Published
Announced Prefixes (BGP)
50total
49 IPv41 IPv6
IPv4 Addresses
Allocated (RIR)16,640
Announced (BGP)63,232
IPv6 Addresses
Allocated (RIR)7.9×10²⁸
Announced (BGP)7.9×10²⁸
Routing hygiene
Score 28/100 · Medium riskRPKI ROA coverage
92%
4 prefixes RPKI invalid
IRR route objects
100%
no origin mismatches
Hijack signals
4
1 announced against others' ROAs, 3 own announced by others
Upstreams
2
diversity 24/100
- Announces 1 prefix that RPKI assigns to another network (possible hijack or misconfiguration)
- Routes concentrated on one upstream (86% of routes)
- 8% of announced prefixes (4 of 50) have no valid ROA, 4 of them RPKI invalid
- 3 prefixes of this ASN announced by another network against its ROAs
Based on 50 announced prefixes, updated daily (2026-10-24). How the score works · RPKI explained
Announced Prefixes
(BGP)50|
Prefix | RPKI | IRR | Last Seen |
|---|---|---|---|
38.7.152.0/22MOAS | Valid | ARINOther IRR | 2026-10-26 |
| Invalid | - | 2026-10-26 | |
38.7.154.0/23MOAS | Invalid | - | 2026-10-26 |
38.51.144.0/22MOAS | Valid | ARINOther IRR | 2026-10-26 |
| Invalid | - | 2026-10-26 | |
| Invalid | - | 2026-10-26 | |
| Valid | ARIN | 2026-10-26 | |
| Valid | - | 2026-10-26 | |
| Valid | - | 2026-10-26 | |
| Valid | - | 2026-10-26 |
1-10 of 50
1 / 5
Allocated Prefixes
(RIR)4Prefix | Country | RIR | Status |
|---|---|---|---|
| 134.49.96.0/19 | 🇺🇸 US | ARIN | allocated |
| 163.245.160.0/19 | 🇺🇸 US | ARIN | allocated |
| 206.225.31.0/24 | 🇺🇸 US | ARIN | allocated |
| 2607:9740::/32 | 🇺🇸 US | ARIN | allocated |
All 50 announced prefixes of AS400337 →
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/400337Returns ASN details, announced prefixes, and BGP routing data.
curl -s "https://api.ipctl.io/v1/asn/400337" | jq