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AS47942Regional Telecom Ltd

IrelandRegistryRIPE NCCTypeEyeball

As of 24th October 2026, AS47942 (Regional Telecom Ltd), an access network registered in Ireland with RIPE NCC, originates 2 IPv4 prefixes covering 5.1k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 15,285th-largest of the 79,671 networks we see originating IPv4, and the 45th-largest of 194 in Ireland. It is seen behind 6 upstream networks, most often AS174 (Cogent Communications, LLC) and AS9002 (RETN Limited). None of its announcements have a valid RPKI ROA. 67% of its routes reach at least 90% of full-feed peers, and 1 prefix is also originated by another network.

At a glance

IPv4 prefixes

2

IPv6 prefixes

1

IPv4 addresses

5.1k

IPv6 /64s

34.4B

Upstream graph

The networks AS47942 is seen behind, one and two hops out, drawn from real AS paths.

AS47942Toward the internet core
Upstream graph for AS47942: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS47942Regional Telecom …This networkAS174Cogent Communicat…AS3303Swisscom (Schweiz…AS9002RETN LimitedAS14537Continent 8 LLCAS39122Blacknight Intern…AS151326DCConnect Communi…AS25091IP-Max SAAS1299Arelion (fka. Tel…AS2914NTT America, Inc.AS6453TATA Communicatio…AS3356Lumen (Level 3)AS6939Hurricane Electri…

Networks observed one and two hops upstream of AS47942 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

23

adjacent networks

Upstreams
626%
Peers
1774%
Downstreams
00%

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

Upstreams of AS47942
NetworkCountryRelationshipPathsVantage pts
AS174Cogent Communications, LLCUSPeer14271
AS9002RETN LimitedGBPeer55
AS39122Blacknight Internet Solutions LimitedIEPeer32
AS14537Continent 8 LLCUSPeer32
AS3303Swisscom (Schweiz) AGCHPeer21
AS13237euNetworks GmbHDEPeer21

Prefixes

The largest blocks AS47942 originates, widest first.

Largest prefixes originated by AS47942
PrefixAddressesVisibility
94.102.192.0/204.1k75/76
185.140.92.0/221k75/76
2a06:f980::/2934.4B × /647/63

Routing health

How AS47942'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

  • Valid0.0%0
  • Invalid0.0%0
  • No ROA100.0%3

Propagation

  • Globally propagated90% of full-feed peers or more66.7%2
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%33.3%1

Prefix sizes

IPv4 — 2 prefixes

IPv6 — 1 prefixes

  • /2934.4B × /64100.0%1

Recent changes

Announcements that started or stopped since 24th Sept 2026.

No announcement by AS47942 started or stopped in this period.

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