$ query “AS44066” --type=asn → 1 result(s)

AS44066 · DE-FIRSTCOLO

firstcolo GmbH

AS44066 is operated by firstcolo GmbH and serves as a mid-size transit provider, registered in Germany since 2007. The system announces a solid 162 560 IPv4 addresses, including a /16, and supports IPv6. Its primary geographic footprint is in Germany, with additional presence in Seychelles and the Netherlands, and smaller footprints in 9 additional countries.

  • Top 5% — Top 5% of all autonomous systems by reach and degree

Basic Information

Country
🇩🇪 Germany
Category
Hosting
Network Role
Mid-size Transit
Data Origin
Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
Registered
November 13, 2007
Last Changed
March 04, 2026
Last Seen
September 06, 2026 (active)

Prefix Summary

IPv4 Prefixes (raw / aggregated)
54 / 43
IPv6 Prefixes (raw / aggregated)
16 / 13
IPv4 Addresses
162 560
Largest IPv4 Prefix
/16 (65 536 addresses)
Largest IPv6 Prefix
/29
Geolocated Countries
🇩🇪 Germany (300 096 IPs), 🇸🇨 Seychelles (768 IPs), 🇳🇱 Netherlands (560 IPs) and 9 more
Prefix Changed
August 04, 2026

Reputation

Reputation
Good — 6 flagged IPs out of 162 560 total (0.00%)

Connectivity Summary

Upstream Providers
5 upstreams providing transit
Peers
206 networks exchanging traffic without transit
Downstream Customers
20 downstreams buying transit
Unclassified
13 unclassified BGP neighbors
Degree
244 unique BGP neighbors
Reach
26 networks in customer cone

Upstream Providers (5)

  • AS174 — COGENT (Tier-1 transit)
  • AS1299 — TWELVE99 (Tier-1 transit)
  • AS3257 — GTT-BACKBONE (Tier-1 transit)
  • AS2914 — NTT-DATA-2914 (Tier-1 transit)
  • AS3320 — DTAG (Tier-1 transit)

Prefix Lists

IPv4 Prefixes (54 total)

  • 84.200.0.0/16 (65 536 addresses (/16 prefix))
  • 212.224.64.0/18 (16 384 addresses (/18 prefix))
  • 84.201.0.0/18 (16 384 addresses (/18 prefix))
  • 82.211.0.0/18 (16 384 addresses (/18 prefix))
  • 37.114.96.0/19 (8 192 addresses (/19 prefix))
  • 159.100.0.0/19 (8 192 addresses (/19 prefix))
  • 79.133.32.0/19 (8 192 addresses (/19 prefix))
  • 31.172.80.0/20 (4 096 addresses (/20 prefix))
  • 212.79.216.0/21 (2 048 addresses (/21 prefix))
  • 185.15.8.0/22 (1 024 addresses (/22 prefix))
  • 185.160.0.0/22 (1 024 addresses (/22 prefix))
  • 91.222.176.0/22 (1 024 addresses (/22 prefix))
  • 212.79.212.0/22 (1 024 addresses (/22 prefix))
  • 194.187.164.0/22 (1 024 addresses (/22 prefix))
  • 109.232.120.0/22 (1 024 addresses (/22 prefix))
  • 62.223.44.0/22 (1 024 addresses (/22 prefix))
  • 193.107.120.0/22 (1 024 addresses (/22 prefix))
  • 185.171.204.0/22 (1 024 addresses (/22 prefix))
  • 185.92.160.0/22 (1 024 addresses (/22 prefix))
  • 194.143.134.0/23 (512 addresses (/23 prefix))
  • 80.173.138.0/23 (512 addresses (/23 prefix))
  • 185.197.166.0/23 (512 addresses (/23 prefix))
  • 185.58.2.0/24 (256 addresses (/24 prefix))
  • 185.133.33.0/24 (256 addresses (/24 prefix))
  • 5.132.158.0/24 (256 addresses (/24 prefix))
  • 185.197.165.0/24 (256 addresses (/24 prefix))
  • 185.17.255.0/24 (256 addresses (/24 prefix))
  • 185.210.137.0/24 (256 addresses (/24 prefix))
  • 188.92.0.0/24 (256 addresses (/24 prefix))
  • 193.33.155.0/24 (256 addresses (/24 prefix))
  • 193.33.221.0/24 (256 addresses (/24 prefix))
  • 193.34.71.0/24 (256 addresses (/24 prefix))
  • 168.80.34.0/24 (256 addresses (/24 prefix))
  • 193.108.168.0/24 (256 addresses (/24 prefix))
  • 114.69.227.0/24 (256 addresses (/24 prefix))
  • 95.156.195.0/24 (256 addresses (/24 prefix))
  • 195.190.9.0/24 (256 addresses (/24 prefix))
  • 196.16.220.0/24 (256 addresses (/24 prefix))
  • 196.17.228.0/24 (256 addresses (/24 prefix))
  • 212.23.211.0/24 (256 addresses (/24 prefix))
  • 94.247.213.0/24 (256 addresses (/24 prefix))
  • 85.137.31.0/24 (256 addresses (/24 prefix))
  • 5.154.181.0/24 (256 addresses (/24 prefix))

IPv6 Prefixes (16 total)

  • 2a02:fb00::/29
  • 2a07:b800::/29
  • 2a0a:7bc0::/32
  • 2a01:7e0::/32
  • 2001:1638::/32
  • 2a09:4d46::/32
  • 2001:1608::/32
  • 2a0a:7bc7::/32
  • 2a03:ebc0:5000::/36
  • 2a0e:57c0:400::/38
  • 2a0d:3c0::/40
  • 2a03:aae0:fc00::/47
  • 2a03:aae0:fc::/48