$ query “AS8400” --type=asn → 1 result(s)

AS8400 · TELEKOM-AS

TELEKOM SRBIJA a.d.

AS8400 is operated by TELEKOM SRBIJA a.d. and serves as a major transit provider, registered in Serbia since 2002. The system announces a solid 823 040 IPv4 addresses, including a /15, and supports IPv6. Its primary geographic footprint is in Serbia, with additional presence in Serbia and Montenegro and YU, and a smaller footprint in another country.

  • Top 5% — Top 5% of all autonomous systems by reach and degree
  • #1 in Serbia — Top 10 by reach within country

Basic Information

Country
🇷🇸 Serbia
Category
Internet Service Provider
Network Role
Major Transit
Data Origin
Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
Registered
June 03, 2002
Last Changed
March 04, 2026
Last Seen
April 28, 2026 (active)

Prefix Summary

IPv4 Prefixes (raw / aggregated)
95 / 64
IPv6 Prefixes (raw / aggregated)
3 / 3
IPv4 Addresses
823 040
Largest IPv4 Prefix
/15 (131 072 addresses)
Largest IPv6 Prefix
/29
Geolocated Countries
🇷🇸 Serbia (1 619 200 IPs), 🇨🇸 Serbia and Montenegro (5 456 IPs), 🇾🇺 YU (80 IPs) and 1 more
Prefix Changed
April 09, 2026

Reputation

Reputation
Good — 22 flagged IPs out of 823 040 total (0.00%)
Open Proxies
4 known open proxies in this network

Connectivity Summary

Upstream Providers
4 upstreams providing transit
Peers
238 networks exchanging traffic without transit
Downstream Customers
86 downstreams buying transit
Unclassified
6 unclassified BGP neighbors
Degree
334 unique BGP neighbors
Reach
37 011 networks in customer cone

Upstream Providers (4)

  • AS3356 — LEVEL3 (Tier-1 transit)
  • AS9002 — RETN-AS
  • AS1299 — TWELVE99 (Tier-1 transit)
  • AS6453 — AS6453 (Tier-1 transit)

Prefix Lists

IPv4 Prefixes (95 total)

  • 109.92.0.0/15 (131 072 addresses (/15 prefix))
  • 178.220.0.0/15 (131 072 addresses (/15 prefix))
  • 93.86.0.0/15 (131 072 addresses (/15 prefix))
  • 79.101.0.0/16 (65 536 addresses (/16 prefix))
  • 178.222.0.0/16 (65 536 addresses (/16 prefix))
  • 212.200.0.0/16 (65 536 addresses (/16 prefix))
  • 77.46.128.0/17 (32 768 addresses (/17 prefix))
  • 178.223.0.0/17 (32 768 addresses (/17 prefix))
  • 178.79.0.0/18 (16 384 addresses (/18 prefix))
  • 109.122.64.0/18 (16 384 addresses (/18 prefix))
  • 91.150.64.0/18 (16 384 addresses (/18 prefix))
  • 178.223.128.0/18 (16 384 addresses (/18 prefix))
  • 87.250.32.0/19 (8 192 addresses (/19 prefix))
  • 109.198.0.0/19 (8 192 addresses (/19 prefix))
  • 176.67.192.0/19 (8 192 addresses (/19 prefix))
  • 195.178.32.0/19 (8 192 addresses (/19 prefix))
  • 92.244.128.0/19 (8 192 addresses (/19 prefix))
  • 178.223.192.0/19 (8 192 addresses (/19 prefix))
  • 178.237.208.0/20 (4 096 addresses (/20 prefix))
  • 109.72.48.0/20 (4 096 addresses (/20 prefix))
  • 213.196.96.0/20 (4 096 addresses (/20 prefix))
  • 62.101.128.0/20 (4 096 addresses (/20 prefix))
  • 62.240.24.0/21 (2 048 addresses (/21 prefix))
  • 178.250.136.0/21 (2 048 addresses (/21 prefix))
  • 46.235.96.0/21 (2 048 addresses (/21 prefix))
  • 93.92.248.0/21 (2 048 addresses (/21 prefix))
  • 46.17.120.0/21 (2 048 addresses (/21 prefix))
  • 37.35.8.0/21 (2 048 addresses (/21 prefix))
  • 5.134.104.0/21 (2 048 addresses (/21 prefix))
  • 212.57.40.0/21 (2 048 addresses (/21 prefix))
  • 109.94.232.0/21 (2 048 addresses (/21 prefix))
  • 185.103.136.0/22 (1 024 addresses (/22 prefix))
  • 185.10.140.0/22 (1 024 addresses (/22 prefix))
  • 212.115.120.0/22 (1 024 addresses (/22 prefix))
  • 195.252.92.0/22 (1 024 addresses (/22 prefix))
  • 185.190.152.0/22 (1 024 addresses (/22 prefix))
  • 185.179.136.0/22 (1 024 addresses (/22 prefix))
  • 109.94.228.0/22 (1 024 addresses (/22 prefix))
  • 185.71.88.0/22 (1 024 addresses (/22 prefix))
  • 185.34.92.0/22 (1 024 addresses (/22 prefix))
  • 185.26.172.0/22 (1 024 addresses (/22 prefix))
  • 89.47.40.0/23 (512 addresses (/23 prefix))
  • 185.125.176.0/23 (512 addresses (/23 prefix))
  • 89.39.144.0/23 (512 addresses (/23 prefix))
  • 92.60.230.0/23 (512 addresses (/23 prefix))
  • 89.46.126.0/23 (512 addresses (/23 prefix))
  • 193.203.18.0/23 (512 addresses (/23 prefix))
  • 92.60.238.0/23 (512 addresses (/23 prefix))
  • 92.60.224.0/23 (512 addresses (/23 prefix))
  • 188.240.88.0/24 (256 addresses (/24 prefix))
  • and 14 more

IPv6 Prefixes (3 total)

  • 2a06:5b00::/29
  • 2a06:63c0::/29
  • 2a00:e90::/32