subnet.im

AS32621Twin City VoIP, Inc.

United StatesRegistryARIN

As of 26th September 2026, AS32621 (Twin City VoIP, Inc.), a network registered in the United States with ARIN, originates 7 IPv4 prefixes covering 1.8k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 29,815th-largest of the 79,516 networks we see originating IPv4, and the 6,813th-largest of 18,424 in the United States. It is seen behind 9 upstream networks, most often AS6939 (Hurricane Electric LLC) and AS3356 (Lumen (Level 3)), and in front of 7 downstream networks. 13% 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.

At a glance

IPv4 prefixes

7

IPv6 prefixes

1

IPv4 addresses

1.8k

IPv6 /64s

268M

Upstream graph

The networks AS32621 is seen behind, one and two hops out, drawn from real AS paths.

AS32621Toward the internet core
Upstream graph for AS32621: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS32621Twin City VoIP, I…This networkAS174Cogent Communicat…AS3356Lumen (Level 3)AS6939Hurricane Electri…AS9002RETN LimitedAS49544i3D.net B.VAS1299Arelion (fka. Tel…AS151326DCConnect Communi…AS3549Lumen (fka. Globa…AS18106Viewqwest Pte LtdAS20130Depaul UniversityAS2914NTT America, Inc.AS51907Kanton Zug

Networks observed one and two hops upstream of AS32621 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

143

adjacent networks

Upstreams
96%
Peers
12789%
Downstreams
75%

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

Upstreams of AS32621
NetworkCountryRelationshipPathsVantage pts
AS6939Hurricane Electric LLCUSPeer1,666133
AS3356Lumen (Level 3)USPeer25023
AS174Cogent Communications, LLCUSPeer456
AS49544i3D.net B.VNLPeer92
AS58511Swoop (Anycast Global Backbone)AUPeer92
AS9002RETN LimitedGBPeer92
AS3130RGnet OUEEPeer81
AS35280F5 Networks SARLFRPeer81
AS14537Continent 8 LLCUSPeer82

Prefixes

The largest blocks AS32621 originates, widest first.

Largest prefixes originated by AS32621
PrefixAddressesVisibility
192.69.76.0/2425681/81
192.69.77.0/2425681/81
192.69.78.0/2425681/81
192.69.79.0/2425681/81
198.137.142.0/2425681/81
205.215.193.0/2425681/81
216.45.236.0/2425681/81
2602:ffaa::/36268M × /6464/64

Routing health

How AS32621'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

  • Valid12.5%1
  • Invalid0.0%0
  • No ROA87.5%7

Propagation

  • Globally propagated90% of full-feed peers or more100.0%8
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 7 prefixes

IPv6 — 1 prefixes

  • /36268M × /64100.0%1

Recent changes

Announcements that started or stopped since 28th Aug 2026.

No announcement by AS32621 started or stopped in this period.

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