subnet.im

AS51559Netinternet Bilisim Teknolojileri AS

TürkiyeRegistryRIPE NCC

As of 23rd October 2026, AS51559 (Netinternet Bilisim Teknolojileri AS), a network registered in Türkiye with RIPE NCC, originates 143 IPv4 prefixes covering 36.6k addresses and 529 IPv6 prefixes. By IPv4 address space that makes it the 5,117th-largest of the 79,652 networks we see originating IPv4, and the 25th-largest of 865 in Türkiye. It is seen behind 7 upstream networks, most often AS9121 (Turk Telekom) and AS6939 (Hurricane Electric LLC), and in front of 9 downstream networks. Over 99% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. Over 99% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

143

IPv6 prefixes

529

IPv4 addresses

36.6k

IPv6 /64s

4.3B

Upstream graph

The networks AS51559 is seen behind, one and two hops out, drawn from real AS paths.

AS51559Toward the internet core
Upstream graph for AS51559: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS51559Netinternet Bilis…This networkAS6939Hurricane Electri…AS9121Turk TelekomAS12735TurkNet Iletisim …AS25091IP-Max SAAS51095EdgeUno, Inc.AS18106Viewqwest Pte LtdAS20130Depaul UniversityAS1299Arelion (fka. Tel…AS2914NTT America, Inc.AS8298IPng Networks GmbHAS56662Marcin GondekAS7195EdgeUno

Networks observed one and two hops upstream of AS51559 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

37

adjacent networks

Upstreams
719%
Peers
2157%
Downstreams
924%

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

Upstreams of AS51559
NetworkCountryRelationshipPathsVantage pts
AS9121Turk TelekomTRPeer42,062140
AS6939Hurricane Electric LLCUSPeer1,94869
AS25091IP-Max SACHPeer1,7415
AS51095EdgeUno, Inc.USPeer5813
AS12735TurkNet Iletisim Hizmetleri A.S.TRPeer16171
AS212477RoyaleHosting B.V.NLPeer15276
AS7768Nuh Ahmet Firat trading as TEKNET YAZILIM VE BILGISAYAR TEKNOLOJILERITRPeer851

Prefixes

All 672

The largest blocks AS51559 originates, widest first.

Largest prefixes originated by AS51559
PrefixAddressesVisibility
31.192.208.0/2425677/77
31.192.209.0/2425677/77
31.192.210.0/2425677/77
31.192.213.0/2425677/77
31.192.215.0/2425677/77
80.253.245.0/2425677/77
84.247.20.0/2425677/77
87.76.194.0/2425677/77
87.232.93.0/2425677/77
88.214.43.0/2425677/77

Routing health

How AS51559'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

  • Valid99.4%668
  • Invalid0.0%0
  • No ROA0.6%4

Propagation

  • Globally propagated90% of full-feed peers or more99.9%671
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.1%1

Prefix sizes

IPv4 — 143 prefixes

IPv6 — 529 prefixes

  • /324.3B × /640.2%1
  • /4865.5k × /6499.8%528

Recent changes

Announcements that started or stopped since 23rd Sept 2026.

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