$ query “AS5603” --type=asn → 1 result(s)

AS5603 · SIOL-NET

Telekom Slovenije d.d.

AS5603 is run by Telekom Slovenije d.d. and is a major transit provider, based in Slovenia since 2002. The system announces a solid 784 896 IPv4 addresses, including a /14, and supports IPv6. Most of its address space is geolocated to Slovenia, with additional presence in Croatia. Prefix announcements for this AS were recently updated.

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

Basic Information

Country
🇸🇮 Slovenia
Category
Internet Service Provider
Network Role
Major Transit
Data Origin
Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
Registered
September 19, 2002
Last Changed
March 04, 2026
Last Seen
May 12, 2026 (active)

Prefix Summary

IPv4 Prefixes (raw / aggregated)
82 / 27
IPv6 Prefixes (raw / aggregated)
12 / 3
IPv4 Addresses
784 896
Largest IPv4 Prefix
/14 (262 144 addresses)
Largest IPv6 Prefix
/29
Geolocated Countries
🇸🇮 Slovenia (1 562 880 IPs), 🇭🇷 Croatia (1 024 IPs)
Prefix Changed
May 13, 2026

Reputation

Reputation
Good — 9 flagged IPs out of 784 896 total (0.00%)

Connectivity Summary

Upstream Providers
6 upstreams providing transit
Peers
117 networks exchanging traffic without transit
Downstream Customers
124 downstreams buying transit
Unclassified
9 unclassified BGP neighbors
Degree
256 unique BGP neighbors
Reach
34 352 networks in customer cone

Upstream Providers (6)

Prefix Lists

IPv4 Prefixes (82 total)

  • 188.196.0.0/14 (262 144 addresses (/14 prefix))
  • 89.142.0.0/15 (131 072 addresses (/15 prefix))
  • 109.182.0.0/16 (65 536 addresses (/16 prefix))
  • 178.58.0.0/16 (65 536 addresses (/16 prefix))
  • 193.77.0.0/16 (65 536 addresses (/16 prefix))
  • 86.61.0.0/17 (32 768 addresses (/17 prefix))
  • 95.176.128.0/17 (32 768 addresses (/17 prefix))
  • 213.250.0.0/18 (16 384 addresses (/18 prefix))
  • 213.229.192.0/18 (16 384 addresses (/18 prefix))
  • 95.159.192.0/18 (16 384 addresses (/18 prefix))
  • 195.210.192.0/18 (16 384 addresses (/18 prefix))
  • 193.95.192.0/18 (16 384 addresses (/18 prefix))
  • 194.165.96.0/19 (8 192 addresses (/19 prefix))
  • 193.189.160.0/19 (8 192 addresses (/19 prefix))
  • 149.126.128.0/19 (8 192 addresses (/19 prefix))
  • 212.30.64.0/19 (8 192 addresses (/19 prefix))
  • 37.18.224.0/20 (4 096 addresses (/20 prefix))
  • 195.250.192.0/20 (4 096 addresses (/20 prefix))
  • 195.250.208.0/21 (2 048 addresses (/21 prefix))
  • 185.58.180.0/22 (1 024 addresses (/22 prefix))
  • 185.59.24.0/22 (1 024 addresses (/22 prefix))
  • 91.217.126.0/23 (512 addresses (/23 prefix))
  • 185.57.226.0/23 (512 addresses (/23 prefix))
  • 91.195.146.0/23 (512 addresses (/23 prefix))
  • 195.88.82.0/23 (512 addresses (/23 prefix))
  • 193.138.9.0/24 (256 addresses (/24 prefix))
  • 195.5.164.0/24 (256 addresses (/24 prefix))

IPv6 Prefixes (12 total)

  • 2a00:ee0::/29
  • 2a02:e20::/29
  • 2001:67c:20d8::/48