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AS40509 Fly.io, Inc.

FLY - Fly.io, Inc. · registered in the United States

IPv4 addresses77,05641 prefixes · 0.002% of announced IPv4
Rank in United States#745largest network in US by IPv4 space, of 18,338 · <0.01% of US
Rank worldwide#2,247of 79,396 networks with IPv4
IPv669 x /4828 prefixes
CountryUnited States18,679 ASNs registered there
Open AS40509 in ASN lookup Look up an IP in this network (37.16.0.1) All networks in United States

IPv4 prefixes

All 41 prefixes, in address order.

  • 37.16.0.0/19
  • 50.31.246.0/24
  • 66.51.120.0/21
  • 66.241.112.0/22
  • 66.241.123.0/24
  • 66.241.124.0/23
  • 66.241.127.0/24
  • 77.83.140.0/22
  • 109.105.216.0/21
  • 137.66.0.0/19
  • 137.66.32.0/21
  • 137.66.40.0/24
  • 137.66.42.0/23
  • 137.66.44.0/22
  • 137.66.48.0/20
  • 149.248.192.0/19
  • 168.220.80.0/20
  • 169.155.48.0/20
  • 172.86.145.0/24
  • 172.86.146.0/23
  • 172.86.148.0/22
  • 188.93.144.0/21
  • 204.8.216.0/22
  • 204.8.220.0/23
  • 204.8.222.0/24
  • 204.10.76.0/22
  • 206.51.242.0/24
  • 209.71.64.0/21
  • 209.71.72.0/22
  • 209.71.76.0/23
  • 209.71.78.0/24
  • 209.71.80.0/21
  • 209.71.88.0/22
  • 209.71.92.0/24
  • 209.71.94.0/23
  • 209.71.96.0/20
  • 209.71.112.0/22
  • 209.71.116.0/24
  • 209.198.240.0/23
  • 209.198.242.0/24
  • 213.188.192.0/19

IPv6 prefixes

All 28 prefixes.

  • 2a09:8280:1::/48
  • 2a09:8280:13::/48
  • 2a09:8280:16::/48
  • 2a09:8280:50::/47
  • 2a09:8280:53::/48
  • 2a09:8280:54::/48
  • 2a09:8280:56::/47
  • 2a09:8280:58::/46
  • 2a09:8280:5d::/48
  • 2a09:8280:5f::/48
  • 2a09:8280:60::/45
  • 2a09:8280:68::/47
  • 2a09:8280:70::/46
  • 2a09:8280:74::/47
  • 2a09:8280:76::/48
  • 2a09:8280:200::/48
  • 2a09:8280:d007::/48
  • 2a09:8280:e601::/48
  • 2a09:8280:e602::/47
  • 2a09:8280:e604::/46
  • 2a09:8280:e608::/47
  • 2a09:8280:e610::/46
  • 2a09:8280:e614::/47
  • 2a09:8280:e617::/48
  • 2a09:8280:e618::/48
  • 2a09:8280:e620::/45
  • 2a09:8280:e628::/47
  • 2a09:8280:e630::/45

Similar-sized networks in United States

ASNNameIPv4 addresses
AS693#742 NOTRE-DAME-AS - University of Notre Dame77,824
AS22925#743 ALLIED-TELECOM - Allied Telecom Group, LLC77,312
AS3762#744 INSTINET-AS - Instinet77,312
AS13807#746 GREAT-PLAINS-COMMUNICATIONS - Great Plains Communications LLC76,544
AS63099#747 MADEALA TELECOM TECHNOLOGY - MADEALA TELECOM TECHNOLOGY INC76,544
AS29748#748 QTS-ASH - Quality Technology Services, LLC76,032

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources