$ query “AS5391” --type=asn → 1 result(s)

AS5391 — T-HT

Hrvatski Telekom d.d.

AS5391 is a major transit provider operated by Hrvatski Telekom d.d., registered in Croatia since 2002. The network announces an impressive 1.1 million IPv4 addresses, including a /13. Supports IPv6.

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

Basic Information

Country
🇭🇷 Croatia
Category
Internet Service Provider
Network Role
Major Transit
Data Origin
Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
Registered
May 10, 2002
Last Changed
March 04, 2026
Last Seen
March 04, 2026

Prefix Summary

IPv4 Prefixes (raw / aggregated)
46 / 14
IPv6 Prefixes (raw / aggregated)
2 / 1
IPv4 Addresses
1 126 656
Largest IPv4 Prefix
/13 (524 288 addresses)
Largest IPv6 Prefix
/29
Geolocated Countries
🇭🇷 HR (26 IPs)
Prefix Changed
March 04, 2026

Reputation

Reputation
Good — 5 flagged IPs out of 1 126 656 total (0.00%)

Connectivity Summary

Upstream Providers
8 upstream autonomous systems providing transit
Peers
2 autonomous systems exchanging traffic without transit fees
Downstream Customers
50 downstream autonomous systems buying transit
Degree
61 unique BGP neighbors (providers + customers + peers)
Reach
35 267 — customer cone size measuring network influence
Degree Rank
#2 594
Reach Rank
#140
Country Rank
#2

Upstream Providers (8)

  • AS6939 — HURRICANE
  • AS174 — COGENT-174 (Tier-1 transit)
  • AS3356 — LEVEL3 (Tier-1 transit)
  • AS9002 — RETN-AS
  • AS1299 — TWELVE99 (Tier-1 transit)
  • AS3320 — DTAG (Tier-1 transit)
  • AS6762 — SEABONE-NET (Tier-1 transit)
  • AS57304 — RETNRU-AS

Prefix Lists

IPv4 Prefixes (46 total)

  • 93.136.0.0/13 (524 288 addresses)
  • 78.0.0.0/14 (262 144 addresses)
  • 83.131.0.0/16 (65 536 addresses)
  • 89.172.0.0/16 (65 536 addresses)
  • 195.29.0.0/16 (65 536 addresses)
  • 31.217.0.0/17 (32 768 addresses)
  • 46.188.128.0/17 (32 768 addresses)
  • 178.160.0.0/17 (32 768 addresses)
  • 194.152.192.0/18 (16 384 addresses)
  • 31.216.192.0/19 (8 192 addresses)
  • 87.252.128.0/19 (8 192 addresses)
  • 93.159.64.0/19 (8 192 addresses)
  • 188.125.0.0/20 (4 096 addresses)
  • 213.202.71.0/24 (256 addresses)

IPv6 Prefixes (2 total)

  • 2a00:c30::/29