AS637 DNIC-ASBLK-00616-00665 - United States Department of Defense DoD
Announced Prefixes (BGP)
565total
565 IPv40 IPv6
IPv4 Addresses
Allocated (RIR)524,288
Announced (BGP)1.1M
IPv6 Addresses
Allocated (RIR)0
Announced (BGP)0
Prefix Limit (IPv4)
2,000
Prefix Limit (IPv6)
5
Allocated
-
Announced Prefixes
(BGP)566|
Prefix | RPKI | IRR | Last Seen |
|---|---|---|---|
| No ROA | - | 2026-10-10 | |
| No ROA | - | 2026-10-10 | |
| No ROA | - | 2026-10-10 | |
| No ROA | - | 2026-10-10 | |
| No ROA | - | 2026-10-10 | |
| No ROA | - | 2026-10-10 | |
| No ROA | - | 2026-10-10 | |
| No ROA | - | 2026-10-10 | |
| No ROA | - | 2026-10-10 | |
| No ROA | - | 2026-10-10 |
1-10 of 566
1 / 57
Allocated Prefixes
(RIR)8Prefix | Country | RIR | Status |
|---|---|---|---|
| 138.156.0.0/16 | 🇺🇸 US | ARIN | allocated |
| 138.158.0.0/16 | 🇺🇸 US | ARIN | allocated |
| 138.168.0.0/16 | 🇺🇸 US | ARIN | allocated |
| 158.236.0.0/16 | 🇺🇸 US | ARIN | allocated |
| 158.237.0.0/16 | 🇺🇸 US | ARIN | allocated |
| 158.238.0.0/16 | 🇺🇸 US | ARIN | allocated |
| 158.243.0.0/16 | 🇺🇸 US | ARIN | allocated |
| 158.245.0.0/16 | 🇺🇸 US | ARIN | allocated |
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 AS637 should publish an ASPA object
- IPv4 transfer marketTransfers published by all five RIRs
- ASN data in AI agents and SIEMMCP server and API integrations
API
Open https://api.ipctl.io/v1/asn/637Returns ASN details, announced prefixes, and BGP routing data.
curl -s "https://api.ipctl.io/v1/asn/637" | jq