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

AS5603 · SIOL-NET

Telekom Slovenije d.d.

AS5603 is operated by Telekom Slovenije d.d. and serves as a major transit provider, established in Slovenia in 2002. The system announces a solid 784 896 IPv4 addresses, including a /14, and supports IPv6. The bulk of its IP address space is in Slovenia, with additional presence in Croatia.

  • 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
April 29, 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
March 04, 2026

Reputation

Reputation
Good — 8 flagged IPs out of 784 896 total (0.00%)

Connectivity Summary

Upstream Providers
7 upstreams providing transit
Peers
114 networks exchanging traffic without transit
Downstream Customers
123 downstreams buying transit
Unclassified
11 unclassified BGP neighbors
Degree
255 unique BGP neighbors
Reach
36 819 networks in customer cone

Upstream Providers (7)

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