subnet.im

AS204457Atlantis Telekomunikasyon Bilisim Hizmetleri San. ve Tic. Ltd. Sti.

TürkiyeRegistryRIPE NCC

As of 26th September 2026, AS204457 (Atlantis Telekomunikasyon Bilisim…), a network registered in Türkiye with RIPE NCC, originates 25 IPv4 prefixes covering 6.7k addresses. By IPv4 address space that makes it the 13,482nd-largest of the 79,516 networks we see originating IPv4, and the 79th-largest of 857 in Türkiye. It is seen behind 26 upstream networks, most often AS9002 (RETN Limited) and AS49544 (i3D.net B.V), and in front of 12 downstream networks. 96% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 92% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

25

IPv6 prefixes

0

IPv4 addresses

6.7k

IPv6 /64s

0

Upstream graph

The networks AS204457 is seen behind, one and two hops out, drawn from real AS paths.

AS204457Toward the internet core
Upstream graph for AS204457: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS204457Atlantis Telekomu…This networkAS6204TMRC GROUP SRLAS6939Hurricane Electri…AS9002RETN LimitedAS25091IP-Max SAAS49544i3D.net B.VAS1299Arelion (fka. Tel…AS18106Viewqwest Pte LtdAS20130Depaul UniversityAS2914NTT America, Inc.AS6453TATA Communicatio…AS51907Kanton ZugAS3356Lumen (Level 3)

Networks observed one and two hops upstream of AS204457 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

173

adjacent networks

Upstreams
2615%
Peers
13578%
Downstreams
127%

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

Upstreams of AS204457
NetworkCountryRelationshipPathsVantage pts
AS9002RETN LimitedGBPeer4,536144
AS49544i3D.net B.VNLPeer2851
AS6204TMRC GROUP SRLROPeer21011
AS6939Hurricane Electric LLCUSPeer9511
AS25091IP-Max SACHPeer752
AS24482SG.GSSGPeer652
AS3170VeloxServ Communications LtdGBPeer491
AS7768Nuh Ahmet Firat trading as TEKNET YAZILIM VE BILGISAYAR TEKNOLOJILERITRPeer331
AS38880Micron21 Datacentre Pty LtdAUPeer202
AS18106Viewqwest Pte LtdSGPeer202

Prefixes

The largest blocks AS204457 originates, widest first.

Largest prefixes originated by AS204457
PrefixAddressesVisibility
45.156.30.0/2351280/81
45.94.5.0/2425680/81
45.94.7.0/2425680/81
45.156.30.0/242566/81
45.156.31.0/242566/81
87.121.22.0/2425680/81
94.103.124.0/2425680/81
95.141.248.0/2425681/81
131.222.230.0/2425680/81
131.222.231.0/2425680/81

Routing health

How AS204457'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

  • Valid96.0%24
  • Invalid0.0%0
  • No ROA4.0%1

Propagation

  • Globally propagated90% of full-feed peers or more92.0%23
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%8.0%2

Prefix sizes

IPv4 — 25 prefixes

Recent changes

Announcements that started or stopped since 28th Aug 2026.

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