subnet.im

AS15612ServeCentric Ltd.

IrelandRegistryRIPE NCC

As of 27th September 2026, AS15612 (ServeCentric Ltd.), a network registered in Ireland with RIPE NCC, originates 2 IPv4 prefixes covering 24.6k addresses. By IPv4 address space that makes it the 6,269th-largest of the 79,523 networks we see originating IPv4, and the 17th-largest of 194 in Ireland. It is seen behind 4 upstream networks, most often AS13237 (euNetworks GmbH) and AS3356 (Lumen (Level 3)), and in front of 2 downstream networks. None of its announcements have a valid RPKI ROA. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

2

IPv6 prefixes

0

IPv4 addresses

24.6k

IPv6 /64s

0

Upstream graph

The networks AS15612 is seen behind, one and two hops out, drawn from real AS paths.

AS15612Toward the internet core
Upstream graph for AS15612: 9 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS15612ServeCentric Ltd.This networkAS174Cogent Communicat…AS3356Lumen (Level 3)AS13237euNetworks GmbHAS39122Blacknight Intern…AS151326DCConnect Communi…AS2914NTT America, Inc.AS3549Lumen (fka. Globa…AS1299Arelion (fka. Tel…AS3257GTT Communication…

Networks observed one and two hops upstream of AS15612 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

14

adjacent networks

Upstreams
429%
Peers
857%
Downstreams
214%

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

Upstreams of AS15612
NetworkCountryRelationshipPathsVantage pts
AS13237euNetworks GmbHDEPeer26745
AS3356Lumen (Level 3)USPeer16530
AS174Cogent Communications, LLCUSPeer5210
AS39122Blacknight Internet Solutions LimitedIEPeer21

Prefixes

The largest blocks AS15612 originates, widest first.

Largest prefixes originated by AS15612
PrefixAddressesVisibility
212.147.128.0/1816.4k81/81
212.147.192.0/198.2k81/81

Routing health

How AS15612'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%2

Propagation

  • Globally propagated90% of full-feed peers or more100.0%2
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 2 prefixes

Recent changes

Announcements that started or stopped since 28th Aug 2026.

No announcement by AS15612 started or stopped in this period.

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