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AS8796 FASTNET DATA INC

FD-298-8796 - FASTNET DATA INC · registered in the United States

IPv4 addresses154,880103 prefixes · 0.005% of announced IPv4
Rank in United States#397largest network in US by IPv4 space, of 18,338 · 0.01% of US
Rank worldwide#1,292of 79,396 networks with IPv4
IPv625 x /4824 prefixes
CountryUnited States18,679 ASNs registered there

IPv4 prefixes

All 103 prefixes, in address order.

  • 23.135.56.0/24
  • 23.159.248.0/24
  • 23.161.196.0/24
  • 23.165.40.0/24
  • 23.165.248.0/24
  • 23.166.168.0/24
  • 23.169.184.0/24
  • 23.170.48.0/23
  • 23.185.168.0/24
  • 23.185.200.0/24
  • 23.186.88.0/24
  • 38.49.0.0/19
  • 38.49.32.0/22
  • 38.49.37.0/24
  • 38.49.38.0/23
  • 38.49.40.0/21
  • 38.49.48.0/20
  • 38.55.0.0/18
  • 38.60.64.0/21
  • 38.60.80.0/20
  • 38.60.96.0/20
  • 38.60.112.0/21
  • 38.60.120.0/22
  • 38.60.124.0/24
  • 38.60.126.0/23
  • 38.148.192.0/19
  • 38.148.224.0/20
  • 38.148.245.0/24
  • 38.148.249.0/24
  • 38.148.250.0/23
  • 38.148.252.0/22
  • 38.162.64.0/19
  • 38.162.96.0/20
  • 38.162.112.0/23
  • 38.162.114.0/23
  • 38.162.116.0/22
  • 38.181.40.0/21
  • 38.181.56.0/21
  • 38.182.152.0/23
  • 38.182.154.0/24
  • 38.182.184.0/21
  • 39.109.96.0/23
  • 45.81.128.0/24
  • 45.91.82.0/23
  • 45.135.116.0/23
  • 45.140.89.0/24
  • 45.155.222.0/23
  • 45.205.4.0/22
  • 50.114.172.0/24
  • 64.112.28.0/24
  • 66.253.104.0/24
  • 69.8.134.0/23
  • 89.42.95.0/24
  • 98.158.28.0/22
  • 103.135.112.0/22
  • 103.144.241.0/24
  • 104.166.77.0/24
  • 104.167.247.0/24
  • 104.234.172.0/24
  • 107.148.200.0/24
  • 107.149.159.0/24
  • 136.0.34.0/24
  • 136.0.37.0/24
  • 136.0.73.0/24
  • 144.225.33.0/24
  • 149.104.128.0/20
  • 154.19.224.0/19
  • 154.23.160.0/20
  • 154.23.192.0/22
  • 154.23.197.0/24
  • 154.23.198.0/23
  • 154.23.200.0/21
  • 154.23.240.0/21
  • 154.23.249.0/24
  • 154.23.250.0/23
  • 154.23.252.0/22
  • 154.26.209.0/24
  • 154.26.210.0/23
  • 154.26.213.0/24
  • 154.26.214.0/23
  • 154.26.216.0/21
  • 154.26.224.0/19
  • 154.31.128.0/19
  • 154.31.192.0/20
  • 154.39.83.0/24
  • 154.200.128.0/24
  • 154.200.132.0/24
  • 157.254.205.0/24
  • 162.218.28.0/22
  • 166.0.25.0/24
  • 166.0.26.0/23
  • 166.0.97.0/24
  • 166.0.100.0/24
  • 166.1.139.0/24
  • 166.1.218.0/24
  • 166.1.232.0/24
  • 178.83.203.0/24
  • 192.6.120.0/23
  • 192.25.102.0/24
  • 193.227.121.0/24
  • 195.72.184.0/21
  • 206.119.64.0/20
  • 207.57.149.0/24

IPv6 prefixes

All 24 prefixes.

  • 2602:f84a::/48
  • 2602:fce1::/48
  • 2602:fce1:23::/48
  • 2602:fce1:140::/48
  • 2602:fce1:200::/48
  • 2602:fce1:222::/47
  • 2602:fce1:226::/48
  • 2602:fce1:241::/48
  • 2602:fce1:251::/48
  • 2602:fce1:407::/48
  • 2602:fce1:408::/48
  • 2602:fce1:421::/48
  • 2602:fce1:424::/48
  • 2602:fce1:43c::/48
  • 2602:fce1:442::/48
  • 2602:fce1:446::/48
  • 2602:fce1:44f::/48
  • 2602:fce1:451::/48
  • 2602:fce1:45c::/48
  • 2602:fce1:466::/48
  • 2602:fce1:46b::/48
  • 2602:fce1:474::/48
  • 2602:fce1:4c8::/48
  • 2602:fce1:4dc::/48

Similar-sized networks in United States

ASNNameIPv4 addresses
AS1968#394 UMASSNET-AS1968 - UMASSNET155,904
AS27142#395 DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD)155,904
AS1767#396 ILIGHT-NET - Indiana Higher Education Telecommunication System (IHETS)155,126
AS195#398 SDSC-AS - San Diego Supercomputer Center154,447
AS14041#399 AS-FRGP - University Corporation for Atmospheric Research153,600
AS399#400 AFCONC-BLOCK1-AS - Air Force Systems Networking153,600

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