subnet.im

AS208621LogicForge Limited

United KingdomRegistryRIPE NCC

As of 11th November 2026, AS208621 (LogicForge Limited), a network registered in the United Kingdom with RIPE NCC, originates 10 IPv4 prefixes covering 2.6k addresses and 9 IPv6 prefixes. By IPv4 address space that makes it the 23,460th-largest of the 80,747 networks we see originating IPv4, and the 695th-largest of 2,122 in the United Kingdom. It is seen behind 39 upstream networks, most often AS20860 (IOMART CLOUD SERVICES LIMITED) and AS63018 (Dedicated.com), and in front of 2 downstream networks. 89% 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

10

IPv6 prefixes

9

IPv4 addresses

2.6k

IPv6 /64s

4.8B

Upstream graph

The networks AS208621 is seen behind, one and two hops out, drawn from real AS paths.

AS208621Toward the internet core
Upstream graph for AS208621: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS208621LogicForge LimitedThis networkAS6939Hurricane Electri…AS20860IOMART CLOUD SERV…AS42708Glesys ABAS44066firstcolo GmbHAS63018Dedicated.comAS20130Depaul UniversityAS132337AxclusiveAS174Cogent Communicat…AS1299Arelion (fka. Tel…AS6461Zayo BandwidthAS2914NTT America, Inc.AS137409GSL Networks Pty …

Networks observed one and two hops upstream of AS208621 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

160

adjacent networks

Upstreams
3924%
Peers
11974%
Downstreams
21%

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

Upstreams of AS208621
NetworkCountryRelationshipPathsVantage pts
AS20860IOMART CLOUD SERVICES LIMITEDGBPeer536104
AS63018Dedicated.comUSPeer459138
AS44066firstcolo GmbHDEPeer138138
AS42708Glesys ABSEPeer103103
AS6939Hurricane Electric LLCUSPeer10121
AS25091IP-Max SACHPeer444
AS174Cogent Communications, LLCUSPeer3131
AS18106Viewqwest Pte LtdSGPeer282
AS24482SG.GSSGPeer274
AS14537Continent 8 LLCUSPeer263

Prefixes

The largest blocks AS208621 originates, widest first.

Largest prefixes originated by AS208621
PrefixAddressesVisibility
38.101.112.0/2425676/76
45.92.36.0/2425675/76
45.92.37.0/2425675/76
45.92.38.0/2425676/76
45.92.39.0/2425676/76
80.64.218.0/2425675/76
80.64.219.0/2425675/76
149.36.41.0/2425676/76
185.232.86.0/2425676/76
185.232.87.0/2425676/76

Routing health

How AS208621'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

  • Valid89.5%17
  • Invalid0.0%0
  • No ROA10.5%2

Propagation

  • Globally propagated90% of full-feed peers or more100.0%19
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 10 prefixes

IPv6 — 9 prefixes

  • /35537M × /64100.0%9

Recent changes

Announcements that started or stopped since 12th Oct 2026.

No announcement by AS208621 started or stopped in this period.

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