$ query “AS25369” --type=asn → 1 result(s)

AS25369 · BANDWIDTH-AS

Hydra Communications Ltd

AS25369 belongs to Hydra Communications Ltd and is a mid-size transit provider, registered in the United Kingdom since 2002. The system announces a solid 143 872 IPv4 addresses, and supports IPv6. The bulk of its IP address space is in the United Kingdom, with additional presence in the United States and Romania, and smaller footprints in 19 additional countries. ⚠️ This AS has a high concentration of IPs flagged for malicious activity. Prefix announcements for this AS were recently updated.

  • Dark Side — Very high concentration of IPs on threat intelligence feeds (>=2%)
  • Top 5% — Top 5% of all autonomous systems by reach and degree

Basic Information

Country
🇬🇧 United Kingdom
Category
Hosting
Network Role
Mid-size Transit
Data Origin
Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
Registered
October 28, 2002
Last Changed
March 04, 2026
Last Seen
October 21, 2026 (active)

Prefix Summary

IPv4 Prefixes (raw / aggregated)
300 / 257
IPv6 Prefixes (raw / aggregated)
18 / 7
IPv4 Addresses
143 872
Largest IPv4 Prefix
/20 (4 096 addresses)
Largest IPv6 Prefix
/29
Geolocated Countries
🇬🇧 United Kingdom (91 632 IPs), 🇺🇸 United States (14 592 IPs), 🇷🇴 Romania (7 680 IPs) and 19 more
Prefix Changed
October 22, 2026

Reputation

Reputation
Poor — 3 250 flagged IPs out of 143 872 total (2.26%)

Connectivity Summary

Upstream Providers
5 upstreams providing transit
Peers
696 networks exchanging traffic without transit
Downstream Customers
37 downstreams buying transit
Unclassified
7 unclassified BGP neighbors
Degree
745 unique BGP neighbors
Reach
91 networks in customer cone

Upstream Providers (5)

  • AS174 — COGENT-174 (Tier-1 transit)
  • AS1299 — TWELVE99 (Tier-1 transit)
  • AS3257 — GTT-BACKBONE (Tier-1 transit)
  • AS23764 — CTGNET
  • AS39686 — AS-EUROFIBER

Prefix Lists

IPv4 Prefixes (300 total)

  • 81.19.208.0/20 (4 096 addresses (/20 prefix))
  • 89.191.96.0/20 (4 096 addresses (/20 prefix))
  • 178.239.160.0/20 (4 096 addresses (/20 prefix))
  • 217.146.80.0/20 (4 096 addresses (/20 prefix))
  • 5.226.136.0/21 (2 048 addresses (/21 prefix))
  • 46.231.160.0/21 (2 048 addresses (/21 prefix))
  • 69.5.168.0/21 (2 048 addresses (/21 prefix))
  • 78.143.224.0/21 (2 048 addresses (/21 prefix))
  • 109.69.104.0/21 (2 048 addresses (/21 prefix))
  • 109.70.144.0/21 (2 048 addresses (/21 prefix))
  • 188.240.56.0/21 (2 048 addresses (/21 prefix))
  • 194.88.96.0/21 (2 048 addresses (/21 prefix))
  • 51.194.168.0/22 (1 024 addresses (/22 prefix))
  • 51.194.176.0/22 (1 024 addresses (/22 prefix))
  • 51.194.184.0/22 (1 024 addresses (/22 prefix))
  • 64.93.48.0/22 (1 024 addresses (/22 prefix))
  • 64.93.60.0/22 (1 024 addresses (/22 prefix))
  • 64.239.236.0/22 (1 024 addresses (/22 prefix))
  • 65.86.176.0/22 (1 024 addresses (/22 prefix))
  • 65.86.184.0/22 (1 024 addresses (/22 prefix))
  • 72.9.168.0/22 (1 024 addresses (/22 prefix))
  • 77.81.124.0/22 (1 024 addresses (/22 prefix))
  • 79.139.84.0/22 (1 024 addresses (/22 prefix))
  • 80.224.232.0/22 (1 024 addresses (/22 prefix))
  • 84.247.40.0/22 (1 024 addresses (/22 prefix))
  • 86.54.136.0/22 (1 024 addresses (/22 prefix))
  • 86.104.20.0/22 (1 024 addresses (/22 prefix))
  • 86.104.248.0/22 (1 024 addresses (/22 prefix))
  • 89.21.64.0/22 (1 024 addresses (/22 prefix))
  • 89.33.68.0/22 (1 024 addresses (/22 prefix))
  • 89.34.96.0/22 (1 024 addresses (/22 prefix))
  • 89.35.28.0/22 (1 024 addresses (/22 prefix))
  • 89.37.64.0/22 (1 024 addresses (/22 prefix))
  • 89.37.172.0/22 (1 024 addresses (/22 prefix))
  • 89.46.248.0/22 (1 024 addresses (/22 prefix))
  • 89.191.124.0/22 (1 024 addresses (/22 prefix))
  • 94.116.80.0/22 (1 024 addresses (/22 prefix))
  • 94.116.92.0/22 (1 024 addresses (/22 prefix))
  • 94.116.112.0/22 (1 024 addresses (/22 prefix))
  • 94.116.128.0/22 (1 024 addresses (/22 prefix))
  • 128.127.148.0/22 (1 024 addresses (/22 prefix))
  • 176.223.172.0/22 (1 024 addresses (/22 prefix))
  • 185.3.236.0/22 (1 024 addresses (/22 prefix))
  • 185.16.204.0/22 (1 024 addresses (/22 prefix))
  • 185.28.252.0/22 (1 024 addresses (/22 prefix))
  • 185.38.148.0/22 (1 024 addresses (/22 prefix))
  • 185.44.76.0/22 (1 024 addresses (/22 prefix))
  • 185.61.156.0/22 (1 024 addresses (/22 prefix))
  • 185.121.136.0/22 (1 024 addresses (/22 prefix))
  • 185.125.204.0/22 (1 024 addresses (/22 prefix))

IPv6 Prefixes (18 total)

  • 2a0b:b840::/29
  • 2a00:1a30::/32
  • 2a01:4020::/32
  • 2a09:a702:6::/47
  • 2a09:a702:8::/47
  • 2a00:10e8:101::/48
  • 2a0f:2c80:1::/48