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AS49915Megaport (UK) Limited

United KingdomRegistryRIPE NCC

As of 26th September 2026, AS49915 (Megaport (UK) Limited), a network registered in the United Kingdom with RIPE NCC, originates 83 IPv4 prefixes covering 34k addresses and 47 IPv6 prefixes. By IPv4 address space that makes it the 5,308th-largest of the 79,480 networks we see originating IPv4, and the 137th-largest of 2,074 in the United Kingdom. It is seen behind 55 upstream networks, most often AS3257 (GTT Communications Inc.) and AS174 (Cogent Communications, LLC), and in front of 209 downstream networks. 98% 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

83

IPv6 prefixes

47

IPv4 addresses

34k

IPv6 /64s

3.1M

Upstream graph

The networks AS49915 is seen behind, one and two hops out, drawn from real AS paths.

AS49915Toward the internet core
Upstream graph for AS49915: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS49915Megaport (UK) Lim…This networkAS174Cogent Communicat…AS1221Telstra LimitedAS2764AAPT LimitedAS3257GTT Communication…AS38195SuperloopAS1299Arelion (fka. Tel…AS151326DCConnect Communi…AS4637Telstra Internati…AS58511Swoop (Anycast Gl…AS4826Vocus Connect Int…AS6667Elisa OyjAS398465Rackdog LLC

Networks observed one and two hops upstream of AS49915 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

639

adjacent networks

Upstreams
559%
Peers
37559%
Downstreams
20933%

Networks carrying this one's traffic toward the rest of the internet. Listing the 40 seen on the most AS paths, of 55.

Upstreams of AS49915
NetworkCountryRelationshipPathsVantage pts
AS3257GTT Communications Inc.USPeer14,887145
AS174Cogent Communications, LLCUSPeer9,934140
AS2764AAPT LimitedAUPeer7,07970
AS38195SuperloopAUPeer6,983108
AS1221Telstra LimitedAUPeer6,13879
AS6461Zayo BandwidthUSPeer2,298106
AS2914NTT America, Inc.USPeer1,80382
AS3491PCCW Global (HK) Ltd.HKPeer1,71573
AS137409GSL Networks Pty LTDAUPeer1,445123
AS4755TATA Communications (formerly VSNL)INPeer1,039145

Prefixes

All 130

The largest blocks AS49915 originates, widest first.

Largest prefixes originated by AS49915
PrefixAddressesVisibility
190.9.32.0/204.1k80/81
200.6.152.0/212k80/81
152.236.132.0/221k80/81
152.236.144.0/221k80/81
190.114.0.0/221k80/81
152.236.128.0/2351280/81
152.236.130.0/2351281/81
152.236.140.0/2351280/81
152.236.142.0/2351280/81
152.236.148.0/2351280/81

Routing health

How AS49915'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

  • Valid98.5%128
  • Invalid0.0%0
  • No ROA1.5%2

Propagation

  • Globally propagated90% of full-feed peers or more100.0%130
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 83 prefixes

IPv6 — 47 prefixes

  • /4865.5k × /64100.0%47

Recent changes

Announcements that started or stopped since 27th Aug 2026.

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