subnet.im

AS19721391TELECOM LTD

United KingdomRegistryRIPE NCC

As of 27th September 2026, AS197213 (91TELECOM LTD), a network registered in the United Kingdom with RIPE NCC, originates 1 IPv4 prefix covering 256 addresses and 2 IPv6 prefixes. By IPv4 address space that makes it the 59,127th-largest of the 79,525 networks we see originating IPv4, and the 1,593rd-largest of 2,074 in the United Kingdom. It is seen behind 3 upstream networks, most often AS9002 (RETN Limited) and AS203446 (SMARTNET Germany GmbH), and in front of 3 downstream networks. Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 67% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

1

IPv6 prefixes

2

IPv4 addresses

256

IPv6 /64s

1.1M

Upstream graph

The networks AS197213 is seen behind, one and two hops out, drawn from real AS paths.

AS197213Toward the internet core
Upstream graph for AS197213: 9 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS19721391TELECOM LTDThis networkAS174Cogent Communicat…AS9002RETN LimitedAS203446SMARTNET Germany …AS1299Arelion (fka. Tel…AS151326DCConnect Communi…AS6453TATA Communicatio…AS51907Kanton ZugAS3257GTT Communication…AS6830Liberty Global Eu…

Networks observed one and two hops upstream of AS197213 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
321%
Peers
857%
Downstreams
321%

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

Upstreams of AS197213
NetworkCountryRelationshipPathsVantage pts
AS9002RETN LimitedGBPeer1,089105
AS203446SMARTNET Germany GmbHDEPeer1,041100
AS174Cogent Communications, LLCUSPeer6464

Prefixes

The largest blocks AS197213 originates, widest first.

Largest prefixes originated by AS197213
PrefixAddressesVisibility
82.108.61.0/2425681/81
2401:1da0:20::/441M × /6463/64
2a13:a5c7:3700::/4865.5k × /6416/64

Routing health

How AS197213'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%3
  • Invalid0.0%0
  • No ROA0.0%0

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 — 1 prefixes

IPv6 — 2 prefixes

  • /441M × /6450.0%1
  • /4865.5k × /6450.0%1

Recent changes

Announcements that started or stopped since 28th Aug 2026.

  • Announced2401:1da0:20::/4422nd Sept 2026
  • Withdrawn82.139.221.0/2421st Sept 2026
  • Withdrawn82.139.242.0/2421st Sept 2026
  • Withdrawn82.139.246.0/2421st Sept 2026
  • Withdrawn85.237.70.0/2421st Sept 2026
  • Withdrawn87.229.64.0/2421st Sept 2026

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