$ query “AS351” --type=asn → 1 result(s)
AS351 · DNIC-ASBLK-00306-00371
United States Department of Defense (DoD)
AS351 is operated by United States Department of Defense (DoD) and serves as a government/public-admin stub network, based in the United States since 1989. The system announces a solid 131 072 IPv4 addresses, including a /16, and supports IPv6. Most of its address space is geolocated to the United States. This AS has recently updated its prefix announcements.
- Pioneer — Registered before the year 2000
Basic Information
- Country
- 🇺🇸 United States
- Category
- Government/Public Administration
- Network Role
- Stub Network
- Data Origin
- Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
- Registered
- June 30, 1989
- Last Changed
- July 07, 2026
- Last Seen
- July 10, 2026 (active)
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 2 / 2
- IPv6 Prefixes (raw / aggregated)
- 3 / 3
- IPv4 Addresses
- 131 072
- Largest IPv4 Prefix
- /16 (65 536 addresses)
- Largest IPv6 Prefix
- /40
- Geolocated Countries
- 🇺🇸 United States (131 072 IPs)
- Prefix Changed
- July 07, 2026
Reputation
- Reputation
- Pristine — 0 flagged IPs
Connectivity Summary
- Upstream Providers
- 1 upstream providing transit
- Degree
- 1 unique BGP neighbor
- Reach
- 0 networks in customer cone
Upstream Providers (1)
- AS306 — DNIC-ASBLK-00306-00371
Prefix Lists
IPv4 Prefixes (2 total)
- 55.37.0.0/16 (65 536 addresses (/16 prefix))
- 55.84.0.0/16 (65 536 addresses (/16 prefix))
IPv6 Prefixes (3 total)
- 2608:12b:4100::/40
- 2608:18b:5400::/40
- 2609:e000:4100::/40