$ query “AS39392” --type=asn → 1 result(s)

AS39392 · SUPERNETWORK

SH.cz s.r.o.

AS39392 is run by SH.cz s.r.o. and is a major transit provider, based in Czechia since 2006. The system announces a respectable 31 744 IPv4 addresses, and supports IPv6. Most of its address space is geolocated to Czechia, with additional presence in Slovakia.

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

Basic Information

Country
🇨🇿 Czechia
Category
Hosting
Network Role
Major Transit
Data Origin
Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
Registered
February 14, 2006
Last Changed
March 04, 2026
Last Seen
April 28, 2026 (active)

Prefix Summary

IPv4 Prefixes (raw / aggregated)
12 / 9
IPv6 Prefixes (raw / aggregated)
4 / 3
IPv4 Addresses
31 744
Largest IPv4 Prefix
/19 (8 192 addresses)
Largest IPv6 Prefix
/29
Geolocated Countries
🇨🇿 Czechia (62 976 IPs), 🇸🇰 Slovakia (32 IPs)
Prefix Changed
April 17, 2026

Reputation

Reputation
Good — 3 flagged IPs out of 31 744 total (0.01%)
Tor Exit Nodes
1 known Tor exit nodes in this network

Connectivity Summary

Upstream Providers
4 upstreams providing transit
Peers
28 networks exchanging traffic without transit
Downstream Customers
93 downstreams buying transit
Unclassified
5 unclassified BGP neighbors
Degree
130 unique BGP neighbors
Reach
30 338 networks in customer cone

Upstream Providers (4)

  • AS174 — COGENT-174 (Tier-1 transit)
  • AS1299 — TWELVE99 (Tier-1 transit)
  • AS33891 — CORE-BACKBONE
  • AS3257 — GTT-BACKBONE (Tier-1 transit)

Prefix Lists

IPv4 Prefixes (12 total)

  • 46.234.96.0/19 (8 192 addresses (/19 prefix))
  • 88.86.96.0/19 (8 192 addresses (/19 prefix))
  • 95.168.192.0/19 (8 192 addresses (/19 prefix))
  • 37.235.96.0/20 (4 096 addresses (/20 prefix))
  • 185.75.232.0/22 (1 024 addresses (/22 prefix))
  • 185.247.28.0/22 (1 024 addresses (/22 prefix))
  • 185.203.84.0/23 (512 addresses (/23 prefix))
  • 185.80.30.0/24 (256 addresses (/24 prefix))
  • 195.190.140.0/24 (256 addresses (/24 prefix))

IPv6 Prefixes (4 total)

  • 2a0d:b880::/29
  • 2a01:28::/32
  • 2a10:3900::/48