subnet.im

AS55201SkyQuantum Internet Service

United StatesRegistryARIN

As of 27th September 2026, AS55201 (SkyQuantum Internet Service), a network registered in the United States with ARIN, originates 150 IPv4 prefixes covering 125k addresses and 135 IPv6 prefixes. By IPv4 address space that makes it the 2,081st-largest of the 79,523 networks we see originating IPv4, and the 669th-largest of 18,427 in the United States. It is seen behind 4 upstream networks, most often AS6939 (Hurricane Electric LLC) and AS42473 (Anexia Cloud Solutions GmbH), and in front of 8 downstream networks. 75% 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

150

IPv6 prefixes

135

IPv4 addresses

125k

IPv6 /64s

301B

Upstream graph

The networks AS55201 is seen behind, one and two hops out, drawn from real AS paths.

AS55201Toward the internet core
Upstream graph for AS55201: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS55201SkyQuantum Intern…This networkAS984Octopus Web Solut…AS6939Hurricane Electri…AS33182HostDime.com, Inc.AS42473Anexia Cloud Solu…AS174Cogent Communicat…AS3491PCCW Global (HK) …AS18106Viewqwest Pte LtdAS20130Depaul UniversityAS3356Lumen (Level 3)AS15830Equinix, Inc.AS1299Arelion (fka. Tel…AS47147Anexia Cloud Solu…

Networks observed one and two hops upstream of AS55201 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

24

adjacent networks

Upstreams
417%
Peers
1250%
Downstreams
833%

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

Upstreams of AS55201
NetworkCountryRelationshipPathsVantage pts
AS6939Hurricane Electric LLCUSPeer41,067144
AS42473Anexia Cloud Solutions GmbHATPeer1,45081
AS984Octopus Web Solution Inc.USPeer47259
AS33182HostDime.com, Inc.USPeer32481

Prefixes

All 285

The largest blocks AS55201 originates, widest first.

Largest prefixes originated by AS55201
PrefixAddressesVisibility
149.51.64.0/198.2k81/81
149.119.32.0/198.2k81/81
38.30.208.0/204.1k81/81
38.30.224.0/204.1k81/81
38.30.240.0/204.1k81/81
149.52.0.0/204.1k81/81
149.52.16.0/204.1k81/81
149.52.32.0/204.1k81/81
149.52.48.0/204.1k81/81
149.52.64.0/204.1k81/81

Routing health

How AS55201'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

  • Valid75.4%215
  • Invalid0.0%0
  • No ROA24.6%70

Propagation

  • Globally propagated90% of full-feed peers or more100.0%285
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 150 prefixes

IPv6 — 135 prefixes

  • /324.3B × /647.4%10
  • /332.1B × /6488.9%120
  • /4016.8M × /642.2%3
  • /4865.5k × /641.5%2

Recent changes

Announcements that started or stopped since 28th Aug 2026.

  • Withdrawn140.235.200.0/2225th Sept 2026
  • Withdrawn150.241.146.0/2325th Sept 2026
  • Withdrawn150.241.172.0/2325th Sept 2026
  • Withdrawn167.148.104.0/2425th Sept 2026
  • Withdrawn167.148.112.0/2425th Sept 2026
  • Withdrawn167.148.97.0/2425th Sept 2026
  • Withdrawn167.148.98.0/2425th Sept 2026
  • Withdrawn172.120.245.0/2425th Sept 2026
  • Withdrawn172.120.49.0/2425th Sept 2026
  • Withdrawn172.120.51.0/2425th Sept 2026
  • Withdrawn172.120.68.0/2425th Sept 2026
  • Withdrawn172.120.73.0/2425th Sept 2026

22 announced and 58 withdrawn in all; the most recent are shown.

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