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AS43915TrueSpeed Communications Limited

United KingdomRegistryRIPE NCC

As of 12th November 2026, AS43915 (TrueSpeed Communications Limited), a network registered in the United Kingdom with RIPE NCC, originates 50 IPv4 prefixes covering 44.8k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 4,731st-largest of the 80,772 networks we see originating IPv4, and the 114th-largest of 2,122 in the United Kingdom. It is seen behind 11 upstream networks, most often AS6461 (Zayo Bandwidth) and AS8943 (Jump Networks Ltd). Every one of its announcements has 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

50

IPv6 prefixes

1

IPv4 addresses

44.8k

IPv6 /64s

4.3B

Upstream graph

The networks AS43915 is seen behind, one and two hops out, drawn from real AS paths.

AS43915Toward the internet core
Upstream graph for AS43915: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS43915TrueSpeed Communi…This networkAS999CORIX NETWORKSAS6461Zayo BandwidthAS8943Jump Networks LtdAS22356Durand do Brasil …AS24482SG.GSAS6453TATA Communicatio…AS6939Hurricane Electri…AS2914NTT America, Inc.AS32590Valve CorporationAS1299Arelion (fka. Tel…AS5405Inter.link GmbHAS3491PCCW Global (HK) …

Networks observed one and two hops upstream of AS43915 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

48

adjacent networks

Upstreams
1123%
Peers
3777%
Downstreams
00%

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

Upstreams of AS43915
NetworkCountryRelationshipPathsVantage pts
AS6461Zayo BandwidthUSPeer3,00763
AS8943Jump Networks LtdGBPeer55375
AS999CORIX NETWORKSUSAdjacent501
AS24482SG.GSSGPeer501
AS39122Blacknight Internet Solutions LimitedIEPeer501
AS132337AxclusiveSGAdjacent501
AS49544i3D.net B.VNLPeer501
AS52075Wifirst S.A.S.FRPeer501
AS22356Durand do Brasil LtdaBRPeer501
AS137409GSL Networks Pty LTDAUPeer451

Prefixes

All 51

The largest blocks AS43915 originates, widest first.

Largest prefixes originated by AS43915
PrefixAddressesVisibility
137.44.112.0/212k78/78
178.248.128.0/212k78/78
185.231.136.0/212k78/78
212.59.72.0/212k78/78
217.14.184.0/212k78/78
5.181.104.0/221k78/78
45.66.36.0/221k78/78
45.80.160.0/221k78/78
45.130.56.0/221k78/78
45.143.112.0/221k78/78

Routing health

How AS43915'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

  • Valid100.0%51
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%51
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 50 prefixes

IPv6 — 1 prefixes

  • /324.3B × /64100.0%1

Recent changes

Announcements that started or stopped since 13th Oct 2026.

No announcement by AS43915 started or stopped in this period.

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