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AS15572Verizon UK Limited

United KingdomRegistryRIPE NCC

As of 29th September 2026, AS15572 (Verizon UK Limited), a network registered in the United Kingdom with RIPE NCC, originates 15 IPv4 prefixes covering 4.1k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 17,089th-largest of the 79,607 networks we see originating IPv4, and the 523rd-largest of 2,076 in the United Kingdom. It is seen behind 2 upstream networks, most often AS701 (Verizon Business) and AS703 (Verizon Business - APAC). 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

15

IPv6 prefixes

1

IPv4 addresses

4.1k

IPv6 /64s

65.5k

Upstream graph

The networks AS15572 is seen behind, one and two hops out, drawn from real AS paths.

AS15572Toward the internet core
Upstream graph for AS15572: 5 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS15572Verizon UK LimitedThis networkAS701Verizon BusinessAS703Verizon Business …AS1299Arelion (fka. Tel…AS3356Lumen (Level 3)AS174Cogent Communicat…

Networks observed one and two hops upstream of AS15572 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 AS15572
NetworkCountryRelationshipPathsVantage pts
AS701Verizon BusinessUSPeer1,049147
AS703Verizon Business - APACUSPeer24682

Prefixes

The largest blocks AS15572 originates, widest first.

Largest prefixes originated by AS15572
PrefixAddressesVisibility
202.125.12.0/2351282/82
63.80.38.0/2425682/82
63.80.162.0/2425682/82
65.202.69.0/2425682/82
65.202.114.0/2425682/82
65.205.33.0/2425682/82
65.207.25.0/2425682/82
65.246.75.0/2425682/82
152.180.28.0/2425682/82
193.41.20.0/2425682/82

Routing health

How AS15572'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%16

Propagation

  • Globally propagated90% of full-feed peers or more100.0%16
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 15 prefixes

IPv6 — 1 prefixes

  • /4865.5k × /64100.0%1

Recent changes

Announcements that started or stopped since 30th Aug 2026.

No announcement by AS15572 started or stopped in this period.

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