AS21743 Atlas Networks Corporation

ANL-36 - Atlas Networks Corporation · registered in the United States

IPv4 addresses21,76027 prefixes · <0.001% of announced IPv4

Rank in United States#2,056largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#5,837of 79,396 networks with IPv4

IPv61 x /32 (65,537 x /48)2 prefixes

CountryUnited States18,679 ASNs registered there

Open AS21743 in ASN lookup Look up an IP in this network (45.42.141.1) All networks in United States

IPv4 prefixes

All 27 prefixes, in address order.

45.42.141.0/24
45.42.142.0/24
64.57.177.0/24
64.93.12.0/23
64.204.233.0/24
64.204.234.0/24
66.93.14.0/24
66.117.131.0/24
66.117.134.0/24
66.170.184.0/21
66.171.176.0/20
66.248.243.0/24
69.5.52.0/23
69.5.55.0/24
104.36.44.0/22
104.192.204.0/22
104.247.120.0/22
104.254.210.0/23
104.255.0.0/22
149.18.8.0/22
149.57.248.0/21
154.6.48.0/22
161.129.176.0/24
165.140.26.0/24
199.231.240.0/21
209.200.234.0/23
216.75.151.0/24

IPv6 prefixes

All 2 prefixes.

2607:9100::/32
2620:b9:e000::/48

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AS64200#2055 VIVIDHOSTING - VIVID-HOSTING LLC22,016

AS10381#2057 SWCP-AS - Southwest Cyberport, Inc.21,760

AS22364#2058 AS-22364 - Telefonica Global Solutions USA, INC21,760

AS23342#2059 UNITEDLAYER - Unitedlayer, Inc.21,760

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