HTTPfy

AS26072 FirstEnergy Corp.

FIRSTENERGY - FirstEnergy Corp. · registered in the United States

IPv4 addresses67,84031 prefixes · 0.002% of announced IPv4
Rank in United States#825largest network in US by IPv4 space, of 18,338 · <0.01% of US
Rank worldwide#2,531of 79,396 networks with IPv4
IPv6576 x /488 prefixes
CountryUnited States18,679 ASNs registered there

IPv4 prefixes

All 31 prefixes, in address order.

  • 64.119.240.0/24
  • 148.108.0.0/19
  • 148.108.32.0/21
  • 148.108.40.0/21
  • 148.108.48.0/20
  • 148.108.64.0/22
  • 148.108.68.0/24
  • 148.108.69.0/24
  • 148.108.70.0/23
  • 148.108.72.0/21
  • 148.108.80.0/20
  • 148.108.96.0/24
  • 148.108.97.0/24
  • 148.108.98.0/24
  • 148.108.99.0/24
  • 148.108.100.0/22
  • 148.108.104.0/21
  • 148.108.112.0/20
  • 148.108.128.0/18
  • 148.108.192.0/21
  • 148.108.200.0/24
  • 148.108.201.0/24
  • 148.108.202.0/23
  • 148.108.204.0/22
  • 148.108.208.0/23
  • 148.108.210.0/24
  • 148.108.211.0/24
  • 148.108.212.0/22
  • 148.108.216.0/21
  • 148.108.224.0/19
  • 205.132.72.0/21

IPv6 prefixes

All 8 prefixes.

  • 2620:17e::/43
  • 2620:17e:20::/48
  • 2620:17e:21::/48
  • 2620:17e:22::/47
  • 2620:17e:24::/46
  • 2620:17e:28::/45
  • 2620:17e:30::/44
  • 2620:17e:400::/39

Similar-sized networks in United States

ASNNameIPv4 addresses
AS11252#822 ISU-NET-AS - Idaho State University68,096
AS15164#823 UPNLLC - Unite Private Networks LLC.67,840
AS33398#824 HOSTA-LAS - Miva Merchant, Inc.67,840
AS3923#826 FAA-MMAC - Federal Aviation Administration67,840
AS1204#827 SUNYNET-ASN-AS - The State University of New York67,840
AS11809#828 NET-ERAU-PRC - Embry-Riddle University67,840

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