AS18923 Towerstream I, Inc.

TWRS-FTW - Towerstream I, Inc. · registered in the United States

IPv4 addresses7682 prefixes · <0.001% of announced IPv4

Rank in United States#9,218largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#43,391of 79,396 networks with IPv4

IPv61 x /481 prefixes

CountryUnited States18,679 ASNs registered there

Open AS18923 in ASN lookup Look up an IP in this network (74.212.176.1) All networks in United States

IPv4 prefixes

All 2 prefixes, in address order.

74.212.176.0/23
74.212.178.0/24

IPv6 prefixes

All 1 prefix.

2604:f400:12::/48

Other ASNs named Towerstream I, Inc.

4 other networks use the same organisation name; together with AS18923 they announce 80,896 IPv4 addresses.

ASNNameIPv4 addresses

AS29930TWRS-CBB - Towerstream I, Inc. US36,096

AS19406TWRS-MA - Towerstream I, Inc. US24,064

AS32654TWRS-CHI - Towerstream I, Inc. US17,664

AS19453TWRS-RI - Towerstream I, Inc. US2,304

Similar-sized networks in United States

ASNNameIPv4 addresses

AS16652#9215 RISEUP - Riseup Networks768

AS17243#9216 BYTENODE-AS - Byte Node LLC768

AS18872#9217 VERITAS - Veritas Technologies LLC768

AS19930#9219 EQUINIX-EC-CH - Equinix, Inc.768

AS20381#9220 CABLELABS-LV - Cable Television Laboratories, Inc.768

AS21664#9221 AMZN-BYOASN - Amazon.com, Inc.768

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