AS21699 IO INC

IO - IO INC · registered in the United States

IPv4 addresses14,33615 prefixes · <0.001% of announced IPv4

Rank in United States#2,513largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#7,535of 79,396 networks with IPv4

IPv616,384 x /483 prefixes

CountryUnited States18,679 ASNs registered there

Open AS21699 in ASN lookup Look up an IP in this network (23.130.96.1) All networks in United States

IPv4 prefixes

All 15 prefixes, in address order.

23.130.96.0/23
23.188.104.0/24
45.41.212.0/22
45.45.240.0/22
64.187.216.0/21
72.21.24.0/21
149.20.160.0/22
149.20.164.0/24
149.20.166.0/23
149.20.184.0/21
162.222.184.0/21
192.234.202.0/23
199.188.150.0/24
204.10.89.0/24
209.160.96.0/23

IPv6 prefixes

All 3 prefixes.

2602:f816::/36
2602:fe70::/36
2607:5b80::/35

Similar-sized networks in United States

ASNNameIPv4 addresses

AS399493#2510 PETITJEANFIBER-01 - Petit Jean Fiber14,336

AS400521#2511 OMNI-FIBER-TX - Omni Fiber14,336

AS26793#2512 ICS-LLC - ICS Advanced Technologies14,336

AS395337#2514 MACST-VEGAS - MacStadium, Inc.14,336

AS4015#2515 CENTURYLINK-LEGACY-QWEST-SPA-OMAHA - CenturyLink Communications, LLC14,336

AS1208#2516 DNIC-AS-01208 - United States Department of Defense (DoD)14,336

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