subnet.im

AS8400Telekom Srbija a.d.

SerbiaRegistryRIPE NCCTypeEyeball

As of 26th September 2026, AS8400 (Telekom Srbija a.d.), an access network registered in Serbia with RIPE NCC, originates 87 IPv4 prefixes covering 1.1M addresses and 3 IPv6 prefixes. By IPv4 address space that makes it the 447th-largest of the 79,516 networks we see originating IPv4, and the largest of 159 in Serbia. It is seen behind 47 upstream networks, most often AS6453 (TATA Communications (America) Inc) and AS9002 (RETN Limited), and in front of 87 downstream networks. Every one of its announcements has 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

87

IPv6 prefixes

3

IPv4 addresses

1.1M

IPv6 /64s

73B

Upstream graph

The networks AS8400 is seen behind, one and two hops out, drawn from real AS paths.

AS8400Toward the internet core
Upstream graph for AS8400: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS8400Telekom Srbija a.…This networkAS1299Arelion (fka. Tel…AS3356Lumen (Level 3)AS6453TATA Communicatio…AS9002RETN LimitedAS32590Valve CorporationAS8888xTom Pty LtdAS13030Init7 (Switzerlan…AS2914NTT America, Inc.AS3549Lumen (fka. Globa…AS8220COLTAS35280F5 Networks SARLAS51907Kanton Zug

Networks observed one and two hops upstream of AS8400 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

459

adjacent networks

Upstreams
4710%
Peers
32571%
Downstreams
8719%

Networks carrying this one's traffic toward the rest of the internet. Listing the 40 seen on the most AS paths, of 47.

Upstreams of AS8400
NetworkCountryRelationshipPathsVantage pts
AS6453TATA Communications (America) IncUSPeer9,66236
AS9002RETN LimitedGBPeer9,32228
AS3356Lumen (Level 3)USPeer7,43441
AS1299Arelion (fka. Telia Carrier)SEPeer5,06735
AS32590Valve CorporationUSPeer2,1714
AS13030Init7 (Switzerland) Ltd.CHPeer2,0604
AS18106Viewqwest Pte LtdSGPeer2,0184
AS7713PT Telkom Indonesia TbkIDPeer1,3522
AS6939Hurricane Electric LLCUSPeer1,3116
AS38880Micron21 Datacentre Pty LtdAUPeer1,2972

Prefixes

All 90

The largest blocks AS8400 originates, widest first.

Largest prefixes originated by AS8400
PrefixAddressesVisibility
93.86.0.0/15131k81/81
109.92.0.0/15131k81/81
178.220.0.0/15131k81/81
79.101.0.0/1665.5k81/81
93.86.0.0/1665.5k81/81
93.87.0.0/1665.5k81/81
178.222.0.0/1665.5k81/81
212.200.0.0/1665.5k81/81
77.46.128.0/1732.8k81/81
178.223.0.0/1732.8k81/81

Routing health

How AS8400'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%90
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

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

Prefix sizes

IPv4 — 87 prefixes

IPv6 — 3 prefixes

  • /2934.4B × /6466.7%2
  • /324.3B × /6433.3%1

Recent changes

Announcements that started or stopped since 28th Aug 2026.

  • Withdrawn212.200.132.0/2421st Sept 2026

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