AS40729 AECOM

ECDC2013 - AECOM · registered in the United States

IPv4 addresses1,0241 prefixes · <0.001% of announced IPv4

Rank in United States#8,612largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#37,404of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS40729 in ASN lookup Look up an IP in this network (144.78.192.1) All networks in United States

IPv4 prefixes

All 1 prefix, in address order.

144.78.192.0/22

Other ASNs named AECOM

2 other networks use the same organisation name; together with AS40729 they announce 2,816 IPv4 addresses.

ASNNameIPv4 addresses

AS22866AECOM-USPHX3 - AECOM US1,280

AS12238AECOM - AECOM US512

Similar-sized networks in United States

ASNNameIPv4 addresses

AS40662#8609 LAYER7-MITIGATION - Layer7 Technologies Inc1,024

AS40722#8610 CALARTS - California Institute of the Arts1,024

AS40725#8611 UNIVERSAL-CONNECTIVITY-BGP - Universal Connectivity, Inc.1,024

AS40731#8613 LATIN-IP - Latin IP LLC1,024

AS40739#8614 SPYFU - Spy Fu, Inc.1,024

AS40748#8615 CARCOM-MCTX - CarrierCOM LP1,024

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