AS398577 SKANSKA USA INC

SKANSKA-USA-EAST - SKANSKA USA INC · registered in the United States

IPv4 addresses2,0483 prefixes · <0.001% of announced IPv4

Rank in United States#6,067largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#22,499of 79,396 networks with IPv4

IPv61,024 x /481 prefixes

CountryUnited States18,679 ASNs registered there

Open AS398577 in ASN lookup Look up an IP in this network (144.57.40.1) All networks in United States

IPv4 prefixes

All 3 prefixes, in address order.

144.57.40.0/23
144.57.42.0/23
144.57.44.0/22

IPv6 prefixes

All 1 prefix.

2602:800:c400::/38

Other ASNs named SKANSKA USA INC

1 other network uses the same organisation name; together with AS398577 they announce 4,096 IPv4 addresses.

ASNNameIPv4 addresses

AS398642SKANSKA-USA-WEST - SKANSKA USA INC US2,048

Similar-sized networks in United States

ASNNameIPv4 addresses

AS64224#6064 ATINET - ATI Solutions2,048

AS396930#6065 OPUS-INTERACTIVE-VA1 - Opus Interactive2,048

AS26286#6066 MYSTICDEVIO - MysticDev LLC2,048

AS398642#6068 SKANSKA-USA-WEST - SKANSKA USA INC2,048

AS401416#6069 AURA-AS - Aurascape, Inc.2,048

AS13437#6070 INNOVEX - Innovex Solutions LLC2,048

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