AS3527 NIH-NET - National Institutes of Health
🇺🇸ARINassigned
Announced Prefixes (BGP)
16total
15 IPv41 IPv6
IPv4 Addresses
Allocated (RIR)327,424
Announced (BGP)345,856
IPv6 Addresses
Allocated (RIR)0
Announced (BGP)3.8×10²⁵
Announced Prefixes
(BGP)16|
Prefix | RPKI | IRR | Last Seen |
|---|---|---|---|
| Valid | ARINOther IRR | 2026-10-11 | |
| Valid | Other IRR | 2026-10-11 | |
| Valid | Other IRR | 2026-10-11 | |
| Valid | ARINOther IRR | 2026-10-11 | |
| No ROA | Other IRR | 2026-10-11 | |
| No ROA | Other IRR | 2026-10-11 | |
| No ROA | Other IRR | 2026-10-11 | |
| Valid | ARINOther IRR | 2026-10-11 | |
165.112.0.0/20MOAS | Valid | Other IRR | 2026-10-11 |
165.112.0.0/21MOAS | Valid | Other IRR | 2026-10-11 |
1-10 of 16
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Allocated Prefixes
(RIR)19Prefix | Country | RIR | Status |
|---|---|---|---|
| 128.231.0.0/16 | 🇺🇸 US | ARIN | allocated |
| 137.187.0.0/16 | 🇺🇸 US | ARIN | allocated |
| 156.40.0.0/18 | 🇺🇸 US | ARIN | allocated |
| 156.40.64.0/20 | 🇺🇸 US | ARIN | allocated |
| 156.40.80.0/21 | 🇺🇸 US | ARIN | allocated |
| 156.40.88.0/22 | 🇺🇸 US | ARIN | allocated |
| 156.40.92.0/24 | 🇺🇸 US | ARIN | allocated |
| 156.40.96.0/19 | 🇺🇸 US | ARIN | allocated |
| 156.40.128.0/18 | 🇺🇸 US | ARIN | allocated |
| 156.40.192.0/22 | 🇺🇸 US | ARIN | allocated |
1-10 of 19
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All 16 announced prefixes of AS3527 →
BGP Neighbours
(seen in AS paths)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 AS3527 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/3527Returns ASN details, announced prefixes, and BGP routing data.
curl -s "https://api.ipctl.io/v1/asn/3527" | jq