$ query “AS6661” --type=asn → 1 result(s)

AS6661 · EPT-LU

POST Luxembourg

AS6661 is operated by POST Luxembourg and serves as a mid-size transit provider, registered in Luxembourg since 2002. The system announces a solid 220 160 IPv4 addresses, and supports IPv6. The bulk of its IP address space is in Luxembourg. This AS has recently updated its prefix announcements.

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

Basic Information

Country
🇱🇺 Luxembourg
Category
Internet Service Provider
Network Role
Mid-size Transit
Data Origin
Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
Registered
January 24, 2002
Last Changed
March 04, 2026
Last Seen
April 29, 2026 (active)

Prefix Summary

IPv4 Prefixes (raw / aggregated)
18 / 18
IPv6 Prefixes (raw / aggregated)
1 / 1
IPv4 Addresses
220 160
Largest IPv4 Prefix
/17 (32 768 addresses)
Largest IPv6 Prefix
/32
Geolocated Countries
🇱🇺 Luxembourg (437 248 IPs)
Prefix Changed
April 25, 2026

Reputation

Reputation
Good — 5 flagged IPs out of 220 160 total (0.00%)

Connectivity Summary

Upstream Providers
2 upstreams providing transit
Peers
183 networks exchanging traffic without transit
Downstream Customers
37 downstreams buying transit
Unclassified
5 unclassified BGP neighbors
Degree
227 unique BGP neighbors
Reach
56 networks in customer cone

Upstream Providers (2)

  • AS6939 — HURRICANE
  • AS5511 — OPENTRANSIT (Tier-1 transit)

Prefix Lists

IPv4 Prefixes (18 total)

  • 83.99.0.0/17 (32 768 addresses (/17 prefix))
  • 88.207.128.0/17 (32 768 addresses (/17 prefix))
  • 107.183.0.0/17 (32 768 addresses (/17 prefix))
  • 78.141.128.0/18 (16 384 addresses (/18 prefix))
  • 87.240.192.0/18 (16 384 addresses (/18 prefix))
  • 146.0.128.0/18 (16 384 addresses (/18 prefix))
  • 178.254.64.0/18 (16 384 addresses (/18 prefix))
  • 188.115.0.0/18 (16 384 addresses (/18 prefix))
  • 194.154.192.0/19 (8 192 addresses (/19 prefix))
  • 213.166.32.0/19 (8 192 addresses (/19 prefix))
  • 213.135.224.0/19 (8 192 addresses (/19 prefix))
  • 195.46.224.0/19 (8 192 addresses (/19 prefix))
  • 146.0.216.0/21 (2 048 addresses (/21 prefix))
  • 37.157.152.0/21 (2 048 addresses (/21 prefix))
  • 185.104.108.0/22 (1 024 addresses (/22 prefix))
  • 146.0.212.0/22 (1 024 addresses (/22 prefix))
  • 193.168.14.0/23 (512 addresses (/23 prefix))
  • 193.168.10.0/23 (512 addresses (/23 prefix))

IPv6 Prefixes (1 total)

  • 2001:7e8::/32