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AS44901Belcloud LTD

BulgariaRegistryRIPE NCCTypeContent

As of 11th November 2026, AS44901 (Belcloud LTD), a content network registered in Bulgaria with RIPE NCC, originates 75 IPv4 prefixes covering 19.2k addresses and 4 IPv6 prefixes. By IPv4 address space that makes it the 7,377th-largest of the 80,747 networks we see originating IPv4, and the 36th-largest of 678 in Bulgaria. It is seen behind 42 upstream networks, most often AS7768 (Nuh Ahmet Firat trading as TEKNET…) and AS4849 (S3 Company Ltd), and in front of 576 downstream networks. 94% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 97% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

75

IPv6 prefixes

4

IPv4 addresses

19.2k

IPv6 /64s

12.9B

Upstream graph

The networks AS44901 is seen behind, one and two hops out, drawn from real AS paths.

AS44901Toward the internet core
Upstream graph for AS44901: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS44901Belcloud LTDThis networkAS3257GTT Communication…AS4849S3 Company LtdAS6453TATA Communicatio…AS7768Nuh Ahmet Firat t…AS18106Viewqwest Pte LtdAS6667Elisa OyjAS398465Rackdog LLCAS2914NTT America, Inc.AS8220COLTAS35280F5 Networks SARLAS9121Turk TelekomAS215859Hetzner Cloud - S…

Networks observed one and two hops upstream of AS44901 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

2,307

adjacent networks

Upstreams
422%
Peers
1,68973%
Downstreams
57625%

Networks carrying this one's traffic toward the rest of the internet. Listing the 40 seen on the most AS paths, of 42.

Upstreams of AS44901
NetworkCountryRelationshipPathsVantage pts
AS7768Nuh Ahmet Firat trading as TEKNET YAZILIM VE BILGISAYAR TEKNOLOJILERITRPeer46,2212
AS4849S3 Company LtdBGPeer11,86176
AS3257GTT Communications Inc.USPeer5,93788
AS6453TATA Communications (America) IncUSPeer5,21432
AS18106Viewqwest Pte LtdSGPeer2,9934
AS5511Orange S.A.FRPeer1,04830
AS132337AxclusiveSGAdjacent7232
AS3170VeloxServ Communications LtdGBPeer6412
AS24482SG.GSSGPeer6032
AS7713PT Telkom Indonesia TbkIDAdjacent3842

Prefixes

All 79

The largest blocks AS44901 originates, widest first.

Largest prefixes originated by AS44901
PrefixAddressesVisibility
23.26.245.0/2425676/76
45.137.220.0/2425676/76
45.137.221.0/2425676/76
45.137.222.0/2425676/76
45.137.223.0/2425676/76
46.253.4.0/2425676/76
78.40.142.0/2425676/76
85.137.19.0/2425676/76
85.217.170.0/2425676/76
85.217.171.0/2425676/76

Routing health

How AS44901'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

  • Valid93.7%74
  • Invalid0.0%0
  • No ROA6.3%5

Propagation

  • Globally propagated90% of full-feed peers or more97.5%77
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%2.5%2

Prefix sizes

IPv4 — 75 prefixes

IPv6 — 4 prefixes

  • /324.3B × /6475.0%3
  • /4865.5k × /6425.0%1

Recent changes

Announcements that started or stopped since 12th Oct 2026.

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