AS12238 AECOM

AECOM - AECOM · registered in the United States

IPv4 addresses5121 prefixes · <0.001% of announced IPv4

Rank in United States#10,669largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#49,765of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS12238 in ASN lookup Look up an IP in this network (65.240.194.1) All networks in United States

IPv4 prefixes

All 1 prefix, in address order.

65.240.194.0/23

Other ASNs named AECOM

2 other networks use the same organisation name; together with AS12238 they announce 2,816 IPv4 addresses.

ASNNameIPv4 addresses

AS22866AECOM-USPHX3 - AECOM US1,280

AS40729ECDC2013 - AECOM US1,024

Similar-sized networks in United States

ASNNameIPv4 addresses

AS12209#10666 GIROSOL - Girosol, Corp.512

AS12218#10667 AMERICAN-INSTITUTES-FOR-RESEARCH - American Institutes for Research512

AS12219#10668 MILLERS-SUPPLIES-AT-WORK-INC - Miller's Supplies at Work512

AS12259#10670 EBOCOM - EBOCOM LLC512

AS13313#10671 BARNES-AND-NOBLE - Barnes & Noble Inc.512

AS13349#10672 TCU-NET - TEACHERS CREDIT UNION512

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