subnet.im

AS13649Flexential Colorado Corp.

United StatesRegistryARIN

As of 23rd October 2026, AS13649 (Flexential Colorado Corp.), a network registered in the United States with ARIN, originates 568 IPv4 prefixes covering 831k addresses and 22 IPv6 prefixes. By IPv4 address space that makes it the 529th-largest of the 79,666 networks we see originating IPv4, and the 122nd-largest of 18,482 in the United States. It is seen behind 5 upstream networks, most often AS3356 (Lumen (Level 3)) and AS3257 (GTT Communications Inc.), and in front of 159 downstream networks. 2% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 99% of its routes reach at least 90% of full-feed peers, and 6 prefixes are also originated by another network.

At a glance

IPv4 prefixes

568

IPv6 prefixes

22

IPv4 addresses

831k

IPv6 /64s

52.1B

Upstream graph

The networks AS13649 is seen behind, one and two hops out, drawn from real AS paths.

AS13649Toward the internet core
Upstream graph for AS13649: 11 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS13649Flexential Colora…This networkAS3257GTT Communication…AS3356Lumen (Level 3)AS7922Comcast Cable Com…AS13335Cloudflare, Inc.AS20284Flexential iNETu …AS6667Elisa OyjAS398465Rackdog LLCAS3549Lumen (fka. Globa…AS2914NTT America, Inc.AS1299Arelion (fka. Tel…AS6453TATA Communicatio…

Networks observed one and two hops upstream of AS13649 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

337

adjacent networks

Upstreams
51%
Peers
17351%
Downstreams
15947%

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

Upstreams of AS13649
NetworkCountryRelationshipPathsVantage pts
AS3356Lumen (Level 3)USPeer37,207111
AS3257GTT Communications Inc.USPeer25,341133
AS7922Comcast Cable Communications, LLCUSPeer6,46539
AS13335Cloudflare, Inc.USPeer15477
AS20284Flexential iNETu Corp.USPeer3612

Prefixes

All 590

The largest blocks AS13649 originates, widest first.

Largest prefixes originated by AS13649
PrefixAddressesVisibility
128.136.0.0/1665.5k77/77
66.129.64.0/1816.4k77/77
72.15.192.0/1816.4k77/77
74.63.128.0/1816.4k77/77
209.235.192.0/1816.4k77/77
216.26.128.0/1816.4k77/77
50.28.192.0/198.2k77/77
50.28.224.0/198.2k77/77
66.18.96.0/198.2k77/77
66.114.96.0/198.2k77/77

Routing health

How AS13649'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

  • Valid1.5%9
  • Invalid0.0%0
  • No ROA98.5%581

Propagation

  • Globally propagated90% of full-feed peers or more99.0%584
  • Partially propagated40% to 90%0.3%2
  • Seen by few peersUnder 40%0.7%4

Prefix sizes

IPv4 — 568 prefixes

IPv6 — 22 prefixes

  • /2934.4B × /644.5%1
  • /324.3B × /6418.2%4
  • /36268M × /644.5%1
  • /3867.1M × /6418.2%4
  • /4865.5k × /6454.5%12

Recent changes

Announcements that started or stopped since 23rd Sept 2026.

  • Announced69.2.199.0/2419th Oct 2026
  • Withdrawn68.142.151.0/2416th Oct 2026
  • Announced68.142.151.0/2413th Oct 2026
  • Withdrawn216.145.126.0/2412th Oct 2026
  • Withdrawn216.58.146.0/2412th Oct 2026
  • Announced216.145.126.0/247th Oct 2026
  • Withdrawn148.66.211.0/246th Oct 2026
  • Withdrawn209.170.211.0/246th Oct 2026
  • Withdrawn64.78.152.0/2425th Sept 2026
  • Withdrawn66.133.109.0/2425th Sept 2026
  • Announced148.66.200.0/2424th Sept 2026

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