$ query “AS31027” --type=asn → 1 result(s)

AS31027 — GLOBALCONNECT-AS31027

GlobalConnect A/S

AS31027 is a major transit provider run by GlobalConnect A/S, established in Denmark in 2004. The network announces a solid 389 376 IPv4 addresses, including a /16. Supports IPv6.

  • Top 5% — Top 5% of all autonomous systems by reach and degree
  • #25 by Reach — Top 100 by customer cone size
  • #1 in Denmark — Top 10 by reach within country

Basic Information

Country
🇩🇰 Denmark
Category
Hosting
Network Role
Major Transit
Data Origin
Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
Registered
February 10, 2004
Last Changed
March 04, 2026
Last Seen
March 04, 2026

Prefix Summary

IPv4 Prefixes (raw / aggregated)
128 / 119
IPv6 Prefixes (raw / aggregated)
12 / 11
IPv4 Addresses
389 376
Largest IPv4 Prefix
/16 (65 536 addresses)
Largest IPv6 Prefix
/29
Geolocated Countries
🇩🇰 DK (324 IPs), 🇩🇪 DE (10 IPs), 🇬🇧 GB (1 IPs), 🇲🇼 MW, 🇲🇿 MZ, 🇳🇬 NG, 🇫🇮 FI, 🇨🇾 CY, 🇿🇼 ZW, 🇬🇳 GN
Prefix Changed
March 04, 2026

Reputation

Reputation
Good — 1 flagged IPs out of 389 376 total (0.00%)

Connectivity Summary

Upstream Providers
3 upstream autonomous systems providing transit
Peers
115 autonomous systems exchanging traffic without transit fees
Downstream Customers
217 downstream autonomous systems buying transit
Degree
344 unique BGP neighbors (providers + customers + peers)
Reach
47 022 — customer cone size measuring network influence
Degree Rank
#378
Reach Rank
#25
Country Rank
#1

Upstream Providers (3)

  • AS3356 — LEVEL3 (Tier-1 transit)
  • AS1299 — TWELVE99 (Tier-1 transit)
  • AS12552 — GLOBALCONNECT-AS12552

Prefix Lists

IPv4 Prefixes (128 total)

  • 94.18.0.0/16 (65 536 addresses)
  • 152.115.0.0/16 (65 536 addresses)
  • 83.151.128.0/18 (16 384 addresses)
  • 87.116.0.0/18 (16 384 addresses)
  • 88.212.64.0/18 (16 384 addresses)
  • 93.176.64.0/18 (16 384 addresses)
  • 62.116.192.0/19 (8 192 addresses)
  • 77.233.224.0/19 (8 192 addresses)
  • 78.153.160.0/19 (8 192 addresses)
  • 82.192.160.0/19 (8 192 addresses)
  • 109.202.128.0/19 (8 192 addresses)
  • 188.120.64.0/19 (8 192 addresses)
  • 212.60.96.0/19 (8 192 addresses)
  • 5.56.144.0/20 (4 096 addresses)
  • 5.179.80.0/20 (4 096 addresses)
  • 37.49.128.0/20 (4 096 addresses)
  • 46.32.128.0/20 (4 096 addresses)
  • 62.12.32.0/20 (4 096 addresses)
  • 78.111.160.0/20 (4 096 addresses)
  • 80.88.128.0/20 (4 096 addresses)
  • 80.243.112.0/20 (4 096 addresses)
  • 85.202.64.0/20 (4 096 addresses)
  • 89.221.160.0/20 (4 096 addresses)
  • 91.143.112.0/20 (4 096 addresses)
  • 92.62.192.0/20 (4 096 addresses)
  • 93.90.0.0/20 (4 096 addresses)
  • 130.185.128.0/20 (4 096 addresses)
  • 217.12.144.0/20 (4 096 addresses)
  • 217.74.208.0/20 (4 096 addresses)
  • 217.116.208.0/20 (4 096 addresses)
  • 217.195.176.0/20 (4 096 addresses)
  • 5.83.24.0/21 (2 048 addresses)
  • 37.25.64.0/21 (2 048 addresses)
  • 37.28.136.0/21 (2 048 addresses)
  • 62.12.48.0/21 (2 048 addresses)
  • 62.122.160.0/21 (2 048 addresses)
  • 78.31.32.0/21 (2 048 addresses)
  • 83.136.88.0/21 (2 048 addresses)
  • 176.67.184.0/21 (2 048 addresses)
  • 176.222.232.0/21 (2 048 addresses)
  • 194.182.96.0/21 (2 048 addresses)
  • 45.67.92.0/22 (1 024 addresses)
  • 46.32.156.0/22 (1 024 addresses)
  • 91.230.68.0/22 (1 024 addresses)
  • 92.43.72.0/22 (1 024 addresses)
  • 185.20.240.0/22 (1 024 addresses)
  • 185.27.204.0/22 (1 024 addresses)
  • 185.29.168.0/22 (1 024 addresses)
  • 185.31.4.0/22 (1 024 addresses)
  • 185.34.12.0/22 (1 024 addresses)

IPv6 Prefixes (12 total)

  • 2a02:188::/29
  • 2a06:b740::/29
  • 2a00:97e0::/32
  • 2a00:b3a1::/32
  • 2a01:4f0::/32
  • 2a01:ef80::/32
  • 2a02:460::/32
  • 2a09:7440::/32
  • 2a03:6947:600::/40
  • 2a10:cf80:1001::/48
  • 2a10:cf80:2001::/48