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AS42794Ultracom Ltd.

BulgariaRegistryRIPE NCCTypeEyeball

As of 11th November 2026, AS42794 (Ultracom Ltd.), an access network registered in Bulgaria with RIPE NCC, originates 17 IPv4 prefixes covering 5.9k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 14,767th-largest of the 80,763 networks we see originating IPv4, and the 94th-largest of 678 in Bulgaria. It is seen behind 2 upstream networks, most often AS8717 (A1 Bulgaria EAD) and AS31287 (IPACCT CABLE 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

17

IPv6 prefixes

1

IPv4 addresses

5.9k

IPv6 /64s

65.5k

Upstream graph

The networks AS42794 is seen behind, one and two hops out, drawn from real AS paths.

AS42794Toward the internet core
Upstream graph for AS42794: 6 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS42794Ultracom Ltd.This networkAS8717A1 Bulgaria EADAS31287IPACCT CABLE LtdAS3356Lumen (Level 3)AS6461Zayo BandwidthAS3491PCCW Global (HK) …AS9002RETN Limited

Networks observed one and two hops upstream of AS42794 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

4

adjacent networks

Upstreams
250%
Peers
250%
Downstreams
00%

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

Upstreams of AS42794
NetworkCountryRelationshipPathsVantage pts
AS8717A1 Bulgaria EADBGPeer1,342140
AS31287IPACCT CABLE LtdBGPeer302

Prefixes

The largest blocks AS42794 originates, widest first.

Largest prefixes originated by AS42794
PrefixAddressesVisibility
92.247.120.0/221k77/77
88.203.208.0/2351277/77
88.203.210.0/2351277/77
92.247.128.0/2351277/77
31.13.198.0/2425677/77
82.103.112.0/2425677/77
88.203.212.0/2425677/77
88.203.213.0/2425677/77
88.203.214.0/2425677/77
88.203.215.0/2425677/77

Routing health

How AS42794'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%18
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%18
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 17 prefixes

IPv6 — 1 prefixes

  • /4865.5k × /64100.0%1

Recent changes

Announcements that started or stopped since 12th Oct 2026.

No announcement by AS42794 started or stopped in this period.

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