AS10370 Northwest Airlines

NORTHWEST-AIRLINES - Northwest Airlines · registered in the United States

IPv4 addresses129,79234 prefixes · 0.004% of announced IPv4

Rank in United States#556largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#1,630of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS10370 in ASN lookup Look up an IP in this network (139.72.0.1) All networks in United States

IPv4 prefixes

All 34 prefixes, in address order.

139.72.0.0/19
139.72.32.0/24
139.72.33.0/24
139.72.34.0/23
139.72.36.0/22
139.72.40.0/21
139.72.48.0/21
139.72.56.0/23
139.72.58.0/23
139.72.60.0/22
139.72.64.0/18
139.72.128.0/20
139.72.144.0/21
139.72.152.0/22
139.72.156.0/23
139.72.159.0/24
139.72.160.0/21
139.72.169.0/24
139.72.170.0/23
139.72.172.0/22
139.72.176.0/20
139.72.192.0/23
139.72.195.0/24
139.72.196.0/22
139.72.200.0/21
139.72.208.0/20
139.72.224.0/19
147.118.0.0/17
147.118.128.0/18
147.118.192.0/19
147.118.224.0/20
147.118.240.0/21
147.118.248.0/22
147.118.252.0/23

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AS26554#558 US-SIGNAL - US Signal Company, L.L.C.129,024

AS15224#559 OMNITURE - Adobe Inc.128,768

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