subnet.im

AS209022Tschajera Limited

United KingdomRegistryRIPE NCCTypeEyeball

As of 27th September 2026, AS209022 (Tschajera Limited), an access network registered in the United Kingdom with RIPE NCC, originates 1 IPv4 prefix covering 256 addresses and 15 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 19 upstream networks, most often AS6939 (Hurricane Electric LLC) and AS34927 (iFog GmbH), and in front of 9 downstream networks. Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 94% 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

1

IPv6 prefixes

15

IPv4 addresses

256

IPv6 /64s

269M

Upstream graph

The networks AS209022 is seen behind, one and two hops out, drawn from real AS paths.

AS209022Toward the internet core
Upstream graph for AS209022: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS209022Tschajera LimitedThis networkAS174Cogent Communicat…AS1299Arelion (fka. Tel…AS6939Hurricane Electri…AS24940Hetzner Online Gm…AS34927iFog GmbHAS151326DCConnect Communi…AS8888xTom Pty LtdAS13030Init7 (Switzerlan…AS18106Viewqwest Pte LtdAS20130Depaul UniversityAS3356Lumen (Level 3)AS9002RETN Limited

Networks observed one and two hops upstream of AS209022 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

525

adjacent networks

Upstreams
194%
Peers
49795%
Downstreams
92%

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

Upstreams of AS209022
NetworkCountryRelationshipPathsVantage pts
AS6939Hurricane Electric LLCUSPeer50247
AS34927iFog GmbHCHPeer24057
AS1299Arelion (fka. Telia Carrier)SEPeer18989
AS174Cogent Communications, LLCUSPeer4528
AS24940Hetzner Online GmbHDEPeer292
AS32590Valve CorporationUSPeer262
AS58511Swoop (Anycast Global Backbone)AUPeer252
AS132337AxclusiveSGPeer252
AS25091IP-Max SACHPeer163
AS8298IPng Networks GmbHCHPeer152

Prefixes

The largest blocks AS209022 originates, widest first.

Largest prefixes originated by AS209022
PrefixAddressesVisibility
143.246.143.0/2425680/81
2a0c:9a40:c000::/36268M × /6463/64
2a07:54c4:174e::/4865.5k × /6464/64
2a0c:9a40:8c40::/4865.5k × /6464/64
2a0c:9a40:c000::/4865.5k × /6464/64
2a0c:9a40:c001::/4865.5k × /6463/64
2a0c:9a40:c003::/4865.5k × /6464/64
2a0c:9a40:c005::/4865.5k × /6463/64
2a10:a500:b00b::/4865.5k × /6464/64
2a10:a501:b00b::/4865.5k × /6464/64

Routing health

How AS209022'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%16
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more93.8%15
  • Partially propagated40% to 90%6.3%1
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 1 prefixes

IPv6 — 15 prefixes

  • /36268M × /646.7%1
  • /4865.5k × /6493.3%14

Recent changes

Announcements that started or stopped since 28th Aug 2026.

  • Withdrawn2a0c:9a40:c009::/4821st Sept 2026

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