AS22866 AECOM

AECOM-USPHX3 - AECOM · registered in the United States

IPv4 addresses1,2804 prefixes · <0.001% of announced IPv4

Rank in United States#7,485largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#28,526of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS22866 in ASN lookup Look up an IP in this network (63.70.138.1) All networks in United States

IPv4 prefixes

All 4 prefixes, in address order.

63.70.138.0/24
65.209.211.0/24
204.76.196.0/23
209.249.113.0/24

Other ASNs named AECOM

2 other networks use the same organisation name; together with AS22866 they announce 2,816 IPv4 addresses.

ASNNameIPv4 addresses

AS40729ECDC2013 - AECOM US1,024

AS12238AECOM - AECOM US512

Similar-sized networks in United States

ASNNameIPv4 addresses

AS22546#7482 WEYERHAEUSER - Weyerhaeuser Company1,280

AS22606#7483 EXACT-7 - Salesforce.com, Inc.1,280

AS22624#7484 FREMONTBANK - Fremont Bank1,280

AS22971#7486 SVHHSTOSF-NET - ST. VINCENT HOSPITAL OF THE HOSPITAL SISTERS OF THE THIRD ORDER OF ST. FRANCIS1,280

AS23046#7487 INFINITE-CAMPUS-GA - Infinite Campus, Incorporated1,280

AS23088#7488 TBG - The Blackstone Group1,280

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