$ query “AS199524” --type=asn → 1 result(s)

AS199524 · GCORE

G-Core Labs S.A.

AS199524 is run by G-Core Labs S.A. and is a major transit provider, established in Luxembourg in 2012. The system announces a solid 127 744 IPv4 addresses, and supports IPv6. Most of its address space is geolocated to the United States, with additional presence in Luxembourg and Singapore, and smaller footprints in 48 additional countries. Prefix announcements for this AS were recently updated.

  • Top 5% — Top 5% of all autonomous systems by reach and degree
  • #8 by Degree — Top 100 by unique BGP neighbor count
  • #1 in Luxembourg — Top 10 by reach within country

Basic Information

Country
🇱🇺 Luxembourg
Category
Internet Service Provider
Network Role
Major Transit
Data Origin
Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
Registered
December 10, 2012
Last Changed
March 04, 2026
Last Seen
April 14, 2026 (active)

Prefix Summary

IPv4 Prefixes (raw / aggregated)
456 / 323
IPv6 Prefixes (raw / aggregated)
132 / 50
IPv4 Addresses
127 744
Largest IPv4 Prefix
/21 (2 048 addresses)
Largest IPv6 Prefix
/41
Geolocated Countries
🇺🇸 United States (57 088 IPs), 🇱🇺 Luxembourg (40 192 IPs), 🇸🇬 Singapore (11 776 IPs) and 48 more
Prefix Changed
April 13, 2026

Reputation

Reputation
Good — 5 flagged IPs out of 127 744 total (0.00%)
Open Proxies
3 known open proxies in this network

Connectivity Summary

Upstream Providers
45 upstreams providing transit
Peers
5 195 networks exchanging traffic without transit
Downstream Customers
65 downstreams buying transit
Unclassified
18 unclassified BGP neighbors
Degree
5 323 unique BGP neighbors
Reach
540 networks in customer cone

Upstream Providers (45)

Prefix Lists

IPv4 Prefixes (456 total)

  • 92.223.16.0/21 (2 048 addresses (/21 prefix))
  • 205.179.240.0/21 (2 048 addresses (/21 prefix))
  • 216.133.104.0/21 (2 048 addresses (/21 prefix))
  • 85.234.68.0/22 (1 024 addresses (/22 prefix))
  • 92.223.116.0/22 (1 024 addresses (/22 prefix))
  • 85.234.72.0/22 (1 024 addresses (/22 prefix))
  • 184.170.200.0/22 (1 024 addresses (/22 prefix))
  • 206.135.148.0/22 (1 024 addresses (/22 prefix))
  • 92.223.24.0/22 (1 024 addresses (/22 prefix))
  • 92.223.44.0/22 (1 024 addresses (/22 prefix))
  • 92.223.52.0/22 (1 024 addresses (/22 prefix))
  • 82.158.116.0/22 (1 024 addresses (/22 prefix))
  • 81.28.12.0/22 (1 024 addresses (/22 prefix))
  • 92.223.96.0/22 (1 024 addresses (/22 prefix))
  • 205.179.220.0/22 (1 024 addresses (/22 prefix))
  • 199.115.72.0/22 (1 024 addresses (/22 prefix))
  • 69.3.132.0/22 (1 024 addresses (/22 prefix))
  • 92.223.124.0/22 (1 024 addresses (/22 prefix))
  • 209.102.252.0/22 (1 024 addresses (/22 prefix))
  • 95.85.92.0/22 (1 024 addresses (/22 prefix))
  • 109.61.44.0/22 (1 024 addresses (/22 prefix))
  • 109.61.124.0/22 (1 024 addresses (/22 prefix))
  • 140.235.48.0/22 (1 024 addresses (/22 prefix))
  • 5.188.132.0/22 (1 024 addresses (/22 prefix))
  • 165.217.132.0/22 (1 024 addresses (/22 prefix))
  • 169.155.124.0/22 (1 024 addresses (/22 prefix))
  • 185.249.132.0/22 (1 024 addresses (/22 prefix))
  • 45.147.160.0/23 (512 addresses (/23 prefix))
  • 78.111.108.0/23 (512 addresses (/23 prefix))
  • 185.188.144.0/23 (512 addresses (/23 prefix))
  • 5.252.26.0/23 (512 addresses (/23 prefix))
  • 185.67.126.0/23 (512 addresses (/23 prefix))
  • 185.12.242.0/23 (512 addresses (/23 prefix))
  • 5.189.202.0/23 (512 addresses (/23 prefix))
  • 188.208.32.0/23 (512 addresses (/23 prefix))
  • 169.155.122.0/23 (512 addresses (/23 prefix))
  • 192.108.254.0/23 (512 addresses (/23 prefix))
  • 165.217.130.0/23 (512 addresses (/23 prefix))
  • 162.213.60.0/23 (512 addresses (/23 prefix))
  • 162.120.2.0/23 (512 addresses (/23 prefix))
  • 5.188.126.0/23 (512 addresses (/23 prefix))
  • 192.135.112.0/23 (512 addresses (/23 prefix))
  • 192.135.118.0/23 (512 addresses (/23 prefix))
  • 45.67.210.0/23 (512 addresses (/23 prefix))
  • 45.80.212.0/23 (512 addresses (/23 prefix))
  • 45.82.30.0/23 (512 addresses (/23 prefix))
  • 45.82.100.0/23 (512 addresses (/23 prefix))
  • 109.61.38.0/23 (512 addresses (/23 prefix))
  • 109.61.32.0/23 (512 addresses (/23 prefix))
  • 45.82.162.0/23 (512 addresses (/23 prefix))
  • and 273 more

IPv6 Prefixes (132 total)

  • 2a03:90c0:80::/41
  • 2a03:90c0:100::/41
  • 2a03:90c0:500::/41
  • 2a03:90c0:300::/41
  • 2a03:90c0:2c0::/42
  • 2a03:90c0:700::/42
  • 2a03:90c0:40::/42
  • 2a03:90c0:180::/42
  • 2a03:90c0:5c0::/42
  • 2a03:90c0:4c0::/42
  • 2a03:90c0:380::/42
  • 2a03:90c0:240::/42
  • 2a03:90c0:280::/43
  • 2a03:90c0:5a0::/43
  • 2a03:90c0:ffe0::/43
  • 2a03:90c0:220::/43
  • 2a03:90c0:780::/43
  • 2a03:90c0:3e0::/43
  • 2a03:90c0:740::/43
  • 2a03:90c0:420::/43
  • 2a03:90c0:460::/43
  • 2a03:90c0:480::/43
  • 2a03:90c0:20::/43
  • 2a03:90c0:6c0::/43
  • 2a03:90c0:1e0::/43
  • 2a03:90c0:660::/43
  • 2a03:90c0:690::/44
  • 2a03:90c0:770::/44
  • 2a03:90c0:610::/44
  • 2a03:90c0:640::/44
  • 2a03:90c0:590::/44
  • 2a03:90c0:2a0::/44
  • 2a03:90c0:6b0::/44
  • 2a03:90c0:210::/44
  • 2a03:90c0:6f0::/44
  • 2a03:90c0:4b0::/44
  • 2a03:90c0:400::/44
  • 2a03:90c0:1d0::/44
  • 2a03:90c0:3c0::/44
  • 2a03:90c0:7c0::/44
  • 2a03:90c0:10::/44
  • 2a03:90c0:8888::/45
  • 2a03:90c0:9994::/46
  • 2a03:90c0:999c::/46
  • 2a03:90c0:9990::/47
  • 2a03:90c0:9998::/47
  • 2a03:90c0:8886::/48
  • 2a03:90c0:9992::/48
  • 2a03:90c0:999a::/48
  • 2a03:90c0:8885::/48