subnet.im

AS49121Infinity Telecom, s.r.o.

CzechiaRegistryRIPE NCC

As of 26th September 2026, AS49121 (Infinity Telecom, s.r.o.), a network registered in Czechia with RIPE NCC, originates 20 IPv4 prefixes covering 6.9k addresses and 9 IPv6 prefixes. By IPv4 address space that makes it the 13,308th-largest of the 79,516 networks we see originating IPv4, and the 96th-largest of 574 in Czechia. It is seen behind 46 upstream networks, most often AS9002 (RETN Limited) and AS6939 (Hurricane Electric LLC), and in front of 14 downstream networks. 90% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

20

IPv6 prefixes

9

IPv4 addresses

6.9k

IPv6 /64s

590k

Upstream graph

The networks AS49121 is seen behind, one and two hops out, drawn from real AS paths.

AS49121Toward the internet core
Upstream graph for AS49121: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS49121Infinity Telecom,…This networkAS1299Arelion (fka. Tel…AS2914NTT America, Inc.AS6453TATA Communicatio…AS6939Hurricane Electri…AS9002RETN LimitedAS8888xTom Pty LtdAS13030Init7 (Switzerlan…AS3130RGnet OUAS49544i3D.net B.VAS18106Viewqwest Pte LtdAS20130Depaul UniversityAS51907Kanton Zug

Networks observed one and two hops upstream of AS49121 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

279

adjacent networks

Upstreams
4616%
Peers
21978%
Downstreams
145%

Networks carrying this one's traffic toward the rest of the internet. Listing the 40 seen on the most AS paths, of 46.

Upstreams of AS49121
NetworkCountryRelationshipPathsVantage pts
AS9002RETN LimitedGBPeer90079
AS6939Hurricane Electric LLCUSPeer62544
AS2914NTT America, Inc.USPeer42034
AS6453TATA Communications (America) IncUSPeer38234
AS1299Arelion (fka. Telia Carrier)SEPeer38242
AS174Cogent Communications, LLCUSPeer31792
AS38880Micron21 Datacentre Pty LtdAUPeer1372
AS7713PT Telkom Indonesia TbkIDPeer1242
AS18106Viewqwest Pte LtdSGPeer1224
AS34288Kantonsschule ZugCHPeer1162

Prefixes

All 29

The largest blocks AS49121 originates, widest first.

Largest prefixes originated by AS49121
PrefixAddressesVisibility
149.7.252.0/221k81/81
154.57.168.0/221k80/81
149.7.252.0/2351281/81
5.57.209.0/2425681/81
5.180.102.0/2425681/81
5.180.103.0/2425681/81
37.77.145.0/2425680/81
37.221.68.0/2425681/81
37.221.69.0/2425681/81
37.221.70.0/2425681/81

Routing health

How AS49121'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

  • Valid89.7%26
  • Invalid0.0%0
  • No ROA10.3%3

Propagation

  • Globally propagated90% of full-feed peers or more100.0%29
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 20 prefixes

IPv6 — 9 prefixes

  • /4865.5k × /64100.0%9

Recent changes

Announcements that started or stopped since 28th Aug 2026.

No announcement by AS49121 started or stopped in this period.

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