subnet.im

AS26666Interserver, Inc

United StatesRegistryARIN

As of 11th November 2026, AS26666 (Interserver, Inc), a network registered in the United States with ARIN, originates 51 IPv4 prefixes covering 30k addresses and 13 IPv6 prefixes. By IPv4 address space that makes it the 5,777th-largest of the 80,747 networks we see originating IPv4, and the 1,972nd-largest of 18,752 in the United States. It is seen behind 4 upstream networks, most often AS6453 (TATA Communications (America) Inc) and AS3257 (GTT Communications Inc.), and in front of 3 downstream networks. 48% of its announcements have a valid RPKI ROA; 3 are RPKI-invalid. 83% of its routes reach at least 90% of full-feed peers, and 1 prefix is also originated by another network.

At a glance

IPv4 prefixes

51

IPv6 prefixes

13

IPv4 addresses

30k

IPv6 /64s

64.7B

Upstream graph

The networks AS26666 is seen behind, one and two hops out, drawn from real AS paths.

AS26666Toward the internet core
Upstream graph for AS26666: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS26666Interserver, IncThis networkAS3257GTT Communication…AS6453TATA Communicatio…AS6461Zayo BandwidthAS7381BroadbandONE, LLCAS6667Elisa OyjAS398465Rackdog LLCAS8220COLTAS35280F5 Networks SARLAS2914NTT America, Inc.AS32590Valve CorporationAS1299Arelion (fka. Tel…AS1828PacketFabric / Un…

Networks observed one and two hops upstream of AS26666 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

15

adjacent networks

Upstreams
427%
Peers
853%
Downstreams
320%

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

Upstreams of AS26666
NetworkCountryRelationshipPathsVantage pts
AS6453TATA Communications (America) IncUSPeer1,75388
AS3257GTT Communications Inc.USPeer1,375102
AS6461Zayo BandwidthUSPeer1,068138
AS7381BroadbandONE, LLCUSPeer33165

Prefixes

All 64

The largest blocks AS26666 originates, widest first.

Largest prefixes originated by AS26666
PrefixAddressesVisibility
162.35.8.0/212k76/76
162.35.16.0/212k76/76
162.220.8.0/212k76/76
163.245.192.0/212k76/76
69.164.248.0/221k76/76
69.164.252.0/221k76/76
69.169.104.0/221k76/76
153.75.228.0/221k76/76
153.75.232.0/221k76/76
157.250.200.0/221k76/76

Routing health

How AS26666'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

  • Valid48.4%31
  • Invalid4.7%3
  • No ROA46.9%30

Propagation

  • Globally propagated90% of full-feed peers or more82.8%53
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%17.2%11

Prefix sizes

IPv4 — 51 prefixes

IPv6 — 13 prefixes

  • /2934.4B × /647.7%1
  • /324.3B × /6453.8%7
  • /36268M × /647.7%1
  • /4865.5k × /6430.8%4

Recent changes

Announcements that started or stopped since 12th Oct 2026.

  • Announced2601:2012::/325th Nov 2026
  • Announced2601:2016::/325th Nov 2026
  • Announced2a0f:35c0::/295th Nov 2026
  • Withdrawn2601:2012::/3228th Oct 2026
  • Withdrawn2601:2016::/3228th Oct 2026
  • Withdrawn2a0f:35c0::/2928th Oct 2026
  • Withdrawn2a0f:1480::/2912th Oct 2026
  • Withdrawn2a0f:2f80::/2912th Oct 2026
  • Withdrawn2a0f:4f80::/2912th Oct 2026

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