$ query “AS57976” --type=asn → 1 result(s)

AS57976 · BLIZZARD

Blizzard Entertainment Inc

AS57976 belongs to Blizzard Entertainment Inc and is a hosting access provider, established in the United States in 2012. The system announces a respectable 59 648 IPv4 addresses, and supports IPv6. Most of its address space is geolocated to the United States, with additional presence in the Netherlands and France, and smaller footprints in 5 additional countries.

Basic Information

Country
🇺🇸 United States
Category
Hosting
Network Role
Access Provider
Data Origin
Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
Registered
March 23, 2012
Last Changed
March 04, 2026
Last Seen
October 21, 2026 (active)

Prefix Summary

IPv4 Prefixes (raw / aggregated)
145 / 55
IPv6 Prefixes (raw / aggregated)
31 / 8
IPv4 Addresses
59 648
Largest IPv4 Prefix
/19 (8 192 addresses)
Largest IPv6 Prefix
/32
Geolocated Countries
🇺🇸 United States (25 376 IPs), 🇳🇱 Netherlands (21 152 IPs), 🇫🇷 France (3 904 IPs) and 5 more
Prefix Changed
October 08, 2026

Reputation

Reputation
Good — 1 flagged IPs out of 59 648 total (0.00%)

Connectivity Summary

Upstream Providers
13 upstreams providing transit
Peers
957 networks exchanging traffic without transit
Downstream Customers
1 downstream buying transit
Unclassified
6 unclassified BGP neighbors
Degree
977 unique BGP neighbors
Reach
1 network in customer cone

Upstream Providers (13)

Prefix Lists

IPv4 Prefixes (145 total)

  • 137.221.64.0/19 (8 192 addresses (/19 prefix))
  • 5.42.160.0/20 (4 096 addresses (/20 prefix))
  • 66.40.176.0/20 (4 096 addresses (/20 prefix))
  • 158.115.192.0/20 (4 096 addresses (/20 prefix))
  • 24.105.40.0/21 (2 048 addresses (/21 prefix))
  • 24.105.56.0/21 (2 048 addresses (/21 prefix))
  • 37.244.24.0/21 (2 048 addresses (/21 prefix))
  • 64.224.0.0/21 (2 048 addresses (/21 prefix))
  • 64.224.24.0/21 (2 048 addresses (/21 prefix))
  • 137.221.104.0/21 (2 048 addresses (/21 prefix))
  • 158.115.216.0/21 (2 048 addresses (/21 prefix))
  • 5.42.176.0/22 (1 024 addresses (/22 prefix))
  • 24.105.0.0/22 (1 024 addresses (/22 prefix))
  • 24.105.16.0/22 (1 024 addresses (/22 prefix))
  • 24.105.28.0/22 (1 024 addresses (/22 prefix))
  • 24.105.52.0/22 (1 024 addresses (/22 prefix))
  • 37.244.4.0/22 (1 024 addresses (/22 prefix))
  • 37.244.32.0/22 (1 024 addresses (/22 prefix))
  • 37.244.40.0/22 (1 024 addresses (/22 prefix))
  • 37.244.52.0/22 (1 024 addresses (/22 prefix))
  • 37.244.60.0/22 (1 024 addresses (/22 prefix))
  • 59.153.40.0/22 (1 024 addresses (/22 prefix))
  • 185.60.112.0/22 (1 024 addresses (/22 prefix))
  • 198.74.32.0/22 (1 024 addresses (/22 prefix))
  • 24.105.50.0/23 (512 addresses (/23 prefix))
  • 37.244.2.0/23 (512 addresses (/23 prefix))
  • 37.244.8.0/23 (512 addresses (/23 prefix))
  • 37.244.14.0/23 (512 addresses (/23 prefix))
  • 37.244.16.0/23 (512 addresses (/23 prefix))
  • 37.244.36.0/23 (512 addresses (/23 prefix))
  • 103.4.114.0/23 (512 addresses (/23 prefix))
  • 103.198.32.0/23 (512 addresses (/23 prefix))
  • 117.52.26.0/23 (512 addresses (/23 prefix))
  • 117.52.34.0/23 (512 addresses (/23 prefix))
  • 117.52.36.0/23 (512 addresses (/23 prefix))
  • 121.254.206.0/23 (512 addresses (/23 prefix))
  • 198.74.36.0/23 (512 addresses (/23 prefix))
  • 202.9.66.0/23 (512 addresses (/23 prefix))
  • 24.105.25.0/24 (256 addresses (/24 prefix))
  • 24.105.27.0/24 (256 addresses (/24 prefix))
  • 37.244.0.0/24 (256 addresses (/24 prefix))
  • 37.244.10.0/24 (256 addresses (/24 prefix))
  • 37.244.13.0/24 (256 addresses (/24 prefix))
  • 37.244.19.0/24 (256 addresses (/24 prefix))
  • 37.244.20.0/24 (256 addresses (/24 prefix))
  • 37.244.23.0/24 (256 addresses (/24 prefix))
  • 37.244.38.0/24 (256 addresses (/24 prefix))
  • 37.244.50.0/24 (256 addresses (/24 prefix))
  • 117.52.6.0/24 (256 addresses (/24 prefix))
  • 117.52.33.0/24 (256 addresses (/24 prefix))

IPv6 Prefixes (31 total)

  • 2a04:e802::/32
  • 2a04:e800:5010::/47
  • 2a04:e800:5014::/48
  • 2a04:e800:5016::/48
  • 2a04:e800:5020::/48
  • 2a04:e800:5023::/48
  • 2a04:e800:5040::/48
  • 2a04:e800:5407::/48