AS22937 ACT USA

SHELDON-AS-1 - ACT USA · registered in the United States

IPv4 addresses4,0963 prefixes · <0.001% of announced IPv4

Rank in United States#4,495largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#15,033of 79,396 networks with IPv4

IPv61 x /32 (65,536 x /48)15 prefixes

CountryUnited States18,679 ASNs registered there

Open AS22937 in ASN lookup Look up an IP in this network (74.121.0.1) All networks in United States

IPv4 prefixes

All 3 prefixes, in address order.

74.121.0.0/21
208.83.96.0/22
208.83.100.0/22

IPv6 prefixes

All 15 prefixes.

2607:ff38::/46
2607:ff38:4::/46
2607:ff38:8::/45
2607:ff38:10::/44
2607:ff38:20::/43
2607:ff38:40::/42
2607:ff38:80::/41
2607:ff38:100::/40
2607:ff38:200::/39
2607:ff38:400::/38
2607:ff38:800::/37
2607:ff38:1000::/36
2607:ff38:2000::/35
2607:ff38:4000::/34
2607:ff38:8000::/33

Similar-sized networks in United States

ASNNameIPv4 addresses

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AS21854#4493 DP-IS - Digital Passage, Inc.4,096

AS22280#4494 ENLIGHTENED-BY-WOODRUFF-ELECTRIC-LLC - Enlightened by Woodruff Electric, LLC4,096

AS26123#4496 ITU-NET-1 - Independence Telecommunications Utility4,096

AS26652#4497 AIRSTREAM-BNC - Airstream Communications, LLC4,096

AS27578#4498 AIRBRIDGE - AirBridge Broadband LLC4,096

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