subnet.im

AS26666Interserver, Inc

United StatesRegistryARIN

As of 27th September 2026, AS26666 (Interserver, Inc), a network registered in the United States with ARIN, originates 49 IPv4 prefixes covering 27.6k addresses and 16 IPv6 prefixes. By IPv4 address space that makes it the 5,930th-largest of the 79,525 networks we see originating IPv4, and the 2,010th-largest of 18,428 in the United States. It is seen behind 4 upstream networks, most often AS6461 (Zayo Bandwidth) and AS6453 (TATA Communications (America) Inc), and in front of 3 downstream networks. 62% 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 1 prefix is also originated by another network.

At a glance

IPv4 prefixes

49

IPv6 prefixes

16

IPv4 addresses

27.6k

IPv6 /64s

168B

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: 11 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 SARLAS32590Valve CorporationAS2914NTT America, Inc.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
AS6461Zayo BandwidthUSPeer1,885145
AS6453TATA Communications (America) IncUSPeer1,68186
AS3257GTT Communications Inc.USPeer1,534126
AS7381BroadbandONE, LLCUSPeer34065

Prefixes

All 65

The largest blocks AS26666 originates, widest first.

Largest prefixes originated by AS26666
PrefixAddressesVisibility
162.35.8.0/212k80/81
162.220.8.0/212k81/81
163.245.192.0/212k81/81
69.164.248.0/221k81/81
69.164.252.0/221k81/81
69.169.104.0/221k81/81
153.75.228.0/221k81/81
153.75.232.0/221k81/81
157.250.200.0/221k81/81
162.35.100.0/221k81/81

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

  • Valid61.5%40
  • Invalid0.0%0
  • No ROA38.5%25

Propagation

  • Globally propagated90% of full-feed peers or more100.0%65
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 49 prefixes

IPv6 — 16 prefixes

  • /2934.4B × /6425.0%4
  • /324.3B × /6443.8%7
  • /36268M × /646.3%1
  • /4865.5k × /6425.0%4

Recent changes

Announcements that started or stopped since 28th Aug 2026.

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