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AS44901Belcloud LTD

BulgariaRegistryRIPE NCCTypeContent

As of 26th September 2026, AS44901 (Belcloud LTD), a content network registered in Bulgaria with RIPE NCC, originates 74 IPv4 prefixes covering 18.9k addresses and 4 IPv6 prefixes. By IPv4 address space that makes it the 7,293rd-largest of the 79,480 networks we see originating IPv4, and the 35th-largest of 669 in Bulgaria. It is seen behind 45 upstream networks, most often AS6453 (TATA Communications (America) Inc) and AS7768 (Nuh Ahmet Firat trading as TEKNET…), and in front of 390 downstream networks. 96% 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, and 2 prefixes are also originated by another network.

At a glance

IPv4 prefixes

74

IPv6 prefixes

4

IPv4 addresses

18.9k

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

2,111

adjacent networks

Upstreams
452%
Peers
1,67679%
Downstreams
39018%

Networks carrying this one's traffic toward the rest of the internet. Listing the 40 seen on the most AS paths, of 45.

Upstreams of AS44901
NetworkCountryRelationshipPathsVantage pts
AS6453TATA Communications (America) IncUSPeer17,46953
AS7768Nuh Ahmet Firat trading as TEKNET YAZILIM VE BILGISAYAR TEKNOLOJILERITRPeer17,2572
AS4849S3 Company LtdBGPeer8,67281
AS3257GTT Communications Inc.USPeer7,05781
AS18106Viewqwest Pte LtdSGPeer3,1344
AS132337AxclusiveSGPeer1,5962
AS5511Orange S.A.FRPeer70827
AS24482SG.GSSGPeer6362
AS24940Hetzner Online GmbHDEPeer4182
AS7713PT Telkom Indonesia TbkIDPeer3902

Prefixes

All 78

The largest blocks AS44901 originates, widest first.

Largest prefixes originated by AS44901
PrefixAddressesVisibility
23.26.245.0/2425678/81
45.137.220.0/2425681/81
45.137.221.0/2425681/81
45.137.222.0/2425680/81
45.137.223.0/2425681/81
46.253.4.0/2425681/81
78.40.142.0/2425681/81
85.137.19.0/2425681/81
85.217.170.0/2425681/81
85.217.171.0/2425681/81

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

  • Valid96.2%75
  • Invalid0.0%0
  • No ROA3.8%3

Propagation

  • Globally propagated90% of full-feed peers or more100.0%78
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 74 prefixes

IPv6 — 4 prefixes

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

Recent changes

Announcements that started or stopped since 27th Aug 2026.

  • Withdrawn104.160.9.0/2425th Sept 2026
  • Announced104.160.9.0/2422nd Sept 2026
  • Withdrawn185.222.105.0/2421st Sept 2026
  • Withdrawn85.137.18.0/2421st Sept 2026
  • Withdrawn91.108.225.0/2421st Sept 2026

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