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AS749United States Department of Defense (DoD)

United StatesRegistryARINTypeEyeball

As of 10th November 2026, AS749 (United States Department of Defense…), an access network registered in the United States with ARIN, originates 3,135 IPv4 prefixes covering 228M addresses. By IPv4 address space that makes it the largest of the 80,723 networks we see originating IPv4, and the largest of 18,750 in the United States. It is seen behind 2 upstream networks, most often AS3356 (Lumen (Level 3)) and AS8529 (Zain Omantel International FZ-LLC), and in front of 1 downstream network. Under 1% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. Over 99% of its routes reach at least 90% of full-feed peers, and 2 prefixes are also originated by another network.

At a glance

IPv4 prefixes

3,135

IPv6 prefixes

0

IPv4 addresses

228M

IPv6 /64s

0

Upstream graph

The networks AS749 is seen behind, one and two hops out, drawn from real AS paths.

AS749Toward the internet core
Upstream graph for AS749: 6 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS749United States Dep…This networkAS3356Lumen (Level 3)AS8529Zain Omantel Inte…AS2914NTT America, Inc.AS3549Lumen (fka. Globa…AS6453TATA Communicatio…AS137409GSL Networks Pty …

Networks observed one and two hops upstream of AS749 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.

Neighbouring networks

5

adjacent networks

Upstreams
240%
Peers
240%
Downstreams
120%

Networks carrying this one's traffic toward the rest of the internet.

Upstreams of AS749
NetworkCountryRelationshipPathsVantage pts
AS3356Lumen (Level 3)USPeer237,98076
AS8529Zain Omantel International FZ-LLCAEAdjacent11

Prefixes

All 3,135

The largest blocks AS749 originates, widest first.

Largest prefixes originated by AS749
PrefixAddressesVisibility
7.0.0.0/816.8M75/76
11.0.0.0/816.8M75/76
21.0.0.0/816.8M75/76
22.0.0.0/816.8M75/76
26.0.0.0/816.8M75/76
28.0.0.0/816.8M75/76
29.0.0.0/816.8M75/76
30.0.0.0/816.8M75/76
33.0.0.0/816.8M75/76
214.128.0.0/98.4M75/76

Routing health

How AS749's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.

RPKI origin validation

  • Valid<0.1%1
  • Invalid0.0%0
  • No ROA100.0%3,134

Propagation

  • Globally propagated90% of full-feed peers or more99.9%3,131
  • Partially propagated40% to 90%<0.1%1
  • Seen by few peersUnder 40%<0.1%3

Prefix sizes

IPv4 — 3,135 prefixes

Recent changes

Announcements that started or stopped since 11th Oct 2026.

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.