subnet.im

AS16491ViaSat, Inc.

United StatesRegistryARIN

As of 25th October 2026, AS16491 (ViaSat, Inc.), a network registered in the United States with ARIN, originates 33 IPv4 prefixes covering 11.3k addresses. By IPv4 address space that makes it the 9,841st-largest of the 79,676 networks we see originating IPv4, and the 3,045th-largest of 18,493 in the United States. It is seen behind 9 upstream networks, most often AS3356 (Lumen (Level 3)) and AS6939 (Hurricane Electric LLC), and in front of 2 downstream networks. 73% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 100% 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

33

IPv6 prefixes

0

IPv4 addresses

11.3k

IPv6 /64s

0

Upstream graph

The networks AS16491 is seen behind, one and two hops out, drawn from real AS paths.

AS16491Toward the internet core
Upstream graph for AS16491: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS16491ViaSat, Inc.This networkAS209Lumen (ex. Qwest)AS3356Lumen (Level 3)AS6461Zayo BandwidthAS6939Hurricane Electri…AS22773Cox Communication…AS3549Lumen (fka. Globa…AS2914NTT America, Inc.AS32590Valve CorporationAS20130Depaul UniversityAS132337AxclusiveAS1299Arelion (fka. Tel…AS3257GTT Communication…

Networks observed one and two hops upstream of AS16491 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

23

adjacent networks

Upstreams
939%
Peers
1252%
Downstreams
29%

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

Upstreams of AS16491
NetworkCountryRelationshipPathsVantage pts
AS3356Lumen (Level 3)USPeer2,33176
AS6939Hurricane Electric LLCUSPeer21476
AS22773Cox Communications Inc.USPeer16714
AS209Lumen (ex. Qwest)USPeer15276
AS6461Zayo BandwidthUSPeer9076
AS38195SuperloopAUPeer7676
AS46887Zayo (fka. Crown Castle)USPeer7676
AS8220COLTGBPeer7373
AS5089Virgin Media LimitedGBPeer22

Prefixes

All 33

The largest blocks AS16491 originates, widest first.

Largest prefixes originated by AS16491
PrefixAddressesVisibility
75.104.232.0/212k76/76
75.104.228.0/221k76/76
8.37.106.0/2351276/76
8.37.96.0/2425676/76
8.37.97.0/2425676/76
8.37.98.0/2425676/76
8.37.99.0/2425676/76
8.37.100.0/2425676/76
8.37.101.0/2425676/76
8.37.102.0/2425676/76

Routing health

How AS16491'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

  • Valid72.7%24
  • Invalid0.0%0
  • No ROA27.3%9

Propagation

  • Globally propagated90% of full-feed peers or more100.0%33
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 33 prefixes

Recent changes

Announcements that started or stopped since 25th Sept 2026.

  • Announced8.37.111.0/2422nd Oct 2026
  • Withdrawn8.37.108.0/2322nd Oct 2026
  • Announced8.37.108.0/2321st Oct 2026
  • Withdrawn8.37.111.0/2420th Oct 2026

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