$ query “AS749” --type=asn → 1 result(s)

AS749 · DNIC-AS-00749

United States Department of Defense (DoD)

AS749 is owned by United States Department of Defense (DoD) and is a government/public-admin access provider, based in the United States. The system announces a whopping 224.2 million IPv4 addresses (6.05% of routable IPv4 space), including a /7. Most of its address space is geolocated to the United States, with additional presence in Australia. Prefix announcements for this AS were recently updated. No IPv6 support — it's 2026, just saying.

  • Space Overlord — Over 10 million IPv4 addresses

Basic Information

Country
🇺🇸 United States
Category
Government/Public Administration
Network Role
Access Provider
Data Origin
Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
Last Changed
June 01, 2026
Last Seen
June 08, 2026 (active)

Prefix Summary

IPv4 Prefixes (raw / aggregated)
3 137 / 2 388
IPv6 Prefixes (raw / aggregated)
0 / 0
IPv4 Addresses
224 164 608
Largest IPv4 Prefix
/7 (33 554 432 addresses)
Geolocated Countries
🇺🇸 United States (360 681 984 IPs), 🇦🇺 Australia (5 005 056 IPs)
Prefix Changed
June 08, 2026

Reputation

Reputation
Good — 5 flagged IPs out of 224 164 608 total (0.00%)

Connectivity Summary

Upstream Providers
1 upstream providing transit
Downstream Customers
1 downstream buying transit
Degree
2 unique BGP neighbors
Reach
1 network in customer cone

Upstream Providers (1)

  • AS3356 — LEVEL3 (Tier-1 transit)

Prefix Lists

IPv4 Prefixes (3 137 total)

  • 28.0.0.0/7 (33 554 432 addresses (/7 prefix))
  • 7.0.0.0/8 (16 777 216 addresses (/8 prefix))
  • 33.0.0.0/8 (16 777 216 addresses (/8 prefix))
  • 22.0.0.0/8 (16 777 216 addresses (/8 prefix))
  • 30.0.0.0/8 (16 777 216 addresses (/8 prefix))
  • 21.0.0.0/8 (16 777 216 addresses (/8 prefix))
  • 26.0.0.0/8 (16 777 216 addresses (/8 prefix))
  • 11.0.0.0/8 (16 777 216 addresses (/8 prefix))
  • 215.128.0.0/9 (8 388 608 addresses (/9 prefix))
  • 214.128.0.0/9 (8 388 608 addresses (/9 prefix))
  • 6.192.0.0/10 (4 194 304 addresses (/10 prefix))
  • 214.96.0.0/11 (2 097 152 addresses (/11 prefix))
  • 6.160.0.0/11 (2 097 152 addresses (/11 prefix))
  • 215.96.0.0/11 (2 097 152 addresses (/11 prefix))
  • 215.32.0.0/11 (2 097 152 addresses (/11 prefix))
  • 205.0.0.0/11 (2 097 152 addresses (/11 prefix))
  • 215.80.0.0/12 (1 048 576 addresses (/12 prefix))
  • 148.32.0.0/12 (1 048 576 addresses (/12 prefix))
  • 6.144.0.0/12 (1 048 576 addresses (/12 prefix))
  • 215.16.0.0/12 (1 048 576 addresses (/12 prefix))
  • 6.96.0.0/12 (1 048 576 addresses (/12 prefix))
  • 205.32.0.0/12 (1 048 576 addresses (/12 prefix))
  • 215.8.0.0/13 (524 288 addresses (/13 prefix))
  • 6.136.0.0/13 (524 288 addresses (/13 prefix))
  • 140.56.0.0/13 (524 288 addresses (/13 prefix))
  • 140.64.0.0/13 (524 288 addresses (/13 prefix))
  • 6.56.0.0/13 (524 288 addresses (/13 prefix))
  • 6.112.0.0/13 (524 288 addresses (/13 prefix))
  • 164.240.0.0/13 (524 288 addresses (/13 prefix))
  • 157.216.0.0/13 (524 288 addresses (/13 prefix))
  • 6.88.0.0/13 (524 288 addresses (/13 prefix))
  • 164.200.0.0/13 (524 288 addresses (/13 prefix))
  • 6.24.0.0/13 (524 288 addresses (/13 prefix))
  • 164.252.0.0/14 (262 144 addresses (/14 prefix))
  • 148.12.0.0/14 (262 144 addresses (/14 prefix))
  • 6.20.0.0/14 (262 144 addresses (/14 prefix))
  • 205.48.0.0/14 (262 144 addresses (/14 prefix))
  • 164.180.0.0/14 (262 144 addresses (/14 prefix))
  • 164.172.0.0/14 (262 144 addresses (/14 prefix))
  • 138.172.0.0/14 (262 144 addresses (/14 prefix))
  • 140.8.0.0/14 (262 144 addresses (/14 prefix))
  • 6.36.0.0/14 (262 144 addresses (/14 prefix))
  • 164.184.0.0/14 (262 144 addresses (/14 prefix))
  • 6.76.0.0/14 (262 144 addresses (/14 prefix))
  • 139.236.0.0/14 (262 144 addresses (/14 prefix))
  • 139.244.0.0/14 (262 144 addresses (/14 prefix))
  • 139.248.0.0/14 (262 144 addresses (/14 prefix))
  • 147.244.0.0/14 (262 144 addresses (/14 prefix))
  • 140.36.0.0/14 (262 144 addresses (/14 prefix))
  • 140.40.0.0/14 (262 144 addresses (/14 prefix))