AS19 Leidos, Inc.

LEIDOS-AS - Leidos, Inc. · registered in the United States

IPv4 addresses135,16819 prefixes · 0.004% of announced IPv4

Rank in United States#449largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#1,448of 79,396 networks with IPv4

IPv64,096 x /485 prefixes

CountryUnited States18,679 ASNs registered there

Open AS19 in ASN lookup Look up an IP in this network (140.162.0.1) All networks in United States

IPv4 prefixes

All 19 prefixes, in address order.

140.162.0.0/20
140.162.16.0/23
140.162.18.0/23
140.162.20.0/22
140.162.24.0/21
140.162.32.0/19
140.162.64.0/18
140.162.128.0/17
149.8.0.0/19
149.8.32.0/20
149.8.48.0/20
149.8.64.0/18
149.8.128.0/17
192.5.8.0/24
192.33.134.0/24
192.131.125.0/24
192.132.104.0/24
204.115.176.0/21
205.153.240.0/22

IPv6 prefixes

All 5 prefixes.

2620:11c:8000::/37
2620:11c:8800::/40
2620:11c:8900::/40
2620:11c:8a00::/39
2620:11c:8c00::/38

Similar-sized networks in United States

ASNNameIPv4 addresses

AS14381#446 CATERPILLAR-INC - Caterpillar, Inc.135,936

AS5723#447 JHU - Johns Hopkins University135,680

AS35985#448 ONERINGNET-ATL-1 - One Ring Networks, Inc.135,168

AS3701#450 LINK-OREGON - University of Oregon134,912

AS46475#451 LIMESTONENETWORKS - Limestone Networks, Inc.134,144

AS10497#452 WORLDBANK - IBRD134,144

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