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AS1906 Northrop Grumman

NORTHROP-GRUMMAN - Northrop Grumman · registered in the United States

IPv4 addresses833,79267 prefixes · 0.027% of announced IPv4
Rank in United States#116largest network in US by IPv4 space, of 18,338 · 0.06% of US
Rank worldwide#412of 79,396 networks with IPv4
IPv6noneno IPv6 routes announced
CountryUnited States18,679 ASNs registered there
Open AS1906 in ASN lookup Look up an IP in this network (129.4.0.1) All networks in United States

IPv4 prefixes

All 67 prefixes, in address order.

  • 129.4.0.0/16
  • 130.124.0.0/16
  • 132.228.0.0/16
  • 134.223.0.0/20
  • 134.223.16.0/23
  • 134.223.18.0/23
  • 134.223.20.0/22
  • 134.223.24.0/21
  • 134.223.32.0/19
  • 134.223.64.0/18
  • 134.223.128.0/20
  • 134.223.144.0/20
  • 134.223.160.0/20
  • 134.223.176.0/20
  • 134.223.192.0/19
  • 134.223.224.0/21
  • 134.223.232.0/24
  • 134.223.233.0/24
  • 134.223.234.0/23
  • 134.223.236.0/22
  • 134.223.240.0/20
  • 137.51.0.0/17
  • 137.51.128.0/18
  • 137.51.192.0/19
  • 137.51.224.0/20
  • 137.51.240.0/22
  • 137.51.244.0/23
  • 137.51.248.0/21
  • 153.113.0.0/16
  • 155.104.0.0/16
  • 157.127.0.0/16
  • 158.114.0.0/16
  • 159.4.0.0/16
  • 159.201.0.0/16
  • 167.225.0.0/17
  • 192.31.248.0/24
  • 192.35.84.0/24
  • 192.45.0.0/16
  • 192.83.248.0/24
  • 192.86.67.0/24
  • 192.86.68.0/22
  • 192.86.72.0/22
  • 192.86.76.0/24
  • 192.107.246.0/24
  • 192.112.60.0/24
  • 192.112.143.0/24
  • 192.112.144.0/24
  • 192.112.146.0/23
  • 192.135.211.0/24
  • 192.135.212.0/24
  • 192.150.201.0/24
  • 198.17.147.0/24
  • 198.49.249.0/24
  • 198.180.218.0/24
  • 198.202.184.0/24
  • 199.26.33.0/24
  • 199.26.34.0/23
  • 199.26.36.0/22
  • 199.26.50.0/24
  • 199.36.17.0/24
  • 199.165.146.0/23
  • 199.165.148.0/24
  • 204.118.7.0/24
  • 208.1.160.0/20
  • 208.12.120.0/23
  • 208.12.122.0/24
  • 208.20.220.0/24

Similar-sized networks in United States

ASNNameIPv4 addresses
AS19527#113 GOOGLE-2 - Google LLC868,352
AS33490#114 COMCAST-33490 - Comcast Cable Communications, LLC852,480
AS33588#115 BRESNAN-33588 - Charter Communications LLC841,984
AS14340#117 SALESFORCE - Salesforce.com, Inc.830,208
AS36375#118 UMICH-AS-5 - University of Michigan826,496
AS17378#119 AS17378 - TierPoint, LLC824,320

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