subnet.im

AS25180Exponential-E Ltd.

United KingdomRegistryRIPE NCCTypeEyeball

As of 11th November 2026, AS25180 (Exponential-E Ltd.), an access network registered in the United Kingdom with RIPE NCC, originates 45 IPv4 prefixes covering 293k addresses and 3 IPv6 prefixes. By IPv4 address space that makes it the 1,015th-largest of the 80,743 networks we see originating IPv4, and the 25th-largest of 2,122 in the United Kingdom. It is seen behind 21 upstream networks, most often AS3356 (Lumen (Level 3)) and AS1299 (Arelion (fka. Telia Carrier)), and in front of 57 downstream networks. 29% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 98% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

45

IPv6 prefixes

3

IPv4 addresses

293k

IPv6 /64s

38.9B

Upstream graph

The networks AS25180 is seen behind, one and two hops out, drawn from real AS paths.

AS25180Toward the internet core
Upstream graph for AS25180: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS25180Exponential-E Ltd.This networkAS174Cogent Communicat…AS1299Arelion (fka. Tel…AS3356Lumen (Level 3)AS6939Hurricane Electri…AS13030Init7 (Switzerlan…AS151326DCConnect Communi…AS16552Tiggee LLCAS2914NTT America, Inc.AS3549Lumen (fka. Globa…AS20130Depaul UniversityAS132337AxclusiveAS56662Marcin Gondek

Networks observed one and two hops upstream of AS25180 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

189

adjacent networks

Upstreams
2111%
Peers
11159%
Downstreams
5730%

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

Upstreams of AS25180
NetworkCountryRelationshipPathsVantage pts
AS3356Lumen (Level 3)USPeer3,44455
AS1299Arelion (fka. Telia Carrier)SEPeer2,67850
AS174Cogent Communications, LLCUSPeer80514
AS6939Hurricane Electric LLCUSPeer43811
AS13030Init7 (Switzerland) Ltd.CHPeer3175
AS14537Continent 8 LLCUSPeer3064
AS32590Valve CorporationUSPeer3054
AS6667Elisa OyjFIPeer3044
AS4637Telstra International LimitedHKPeer23114
AS3170VeloxServ Communications LtdGBPeer1722

Prefixes

All 48

The largest blocks AS25180 originates, widest first.

Largest prefixes originated by AS25180
PrefixAddressesVisibility
149.63.0.0/1665.5k76/76
167.98.0.0/1665.5k76/76
5.148.0.0/1732.8k76/76
31.221.0.0/1732.8k76/76
83.244.128.0/1732.8k76/76
109.231.192.0/1816.4k76/76
5.148.128.0/198.2k76/76
62.244.160.0/198.2k76/76
176.46.160.0/198.2k76/76
212.93.72.0/212k76/76

Routing health

How AS25180'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

  • Valid29.2%14
  • Invalid0.0%0
  • No ROA70.8%34

Propagation

  • Globally propagated90% of full-feed peers or more97.9%47
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%2.1%1

Prefix sizes

IPv4 — 45 prefixes

IPv6 — 3 prefixes

  • /2934.4B × /6433.3%1
  • /324.3B × /6433.3%1
  • /36268M × /6433.3%1

Recent changes

Announcements that started or stopped since 12th Oct 2026.

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