AS20340 CallTower, Inc.

CALLTOWER - CallTower, Inc. · registered in the United States

IPv4 addresses37,63227 prefixes · 0.001% of announced IPv4

Rank in United States#1,618largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#4,438of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS20340 in ASN lookup Look up an IP in this network (64.34.45.1) All networks in United States

IPv4 prefixes

All 27 prefixes, in address order.

64.34.45.0/24
65.39.213.0/24
67.213.176.0/23
67.213.178.0/23
67.213.180.0/22
67.213.184.0/21
69.4.176.0/20
69.54.64.0/22
69.54.70.0/23
69.54.72.0/21
69.54.80.0/20
165.254.122.0/24
205.196.168.0/21
206.80.64.0/19
208.52.155.0/24
208.52.156.0/24
208.70.112.0/21
209.40.224.0/22
209.40.228.0/23
209.40.230.0/24
209.40.231.0/24
209.40.232.0/21
209.40.240.0/21
209.40.248.0/22
209.40.252.0/24
209.40.253.0/24
209.40.254.0/23

Other ASNs named CallTower, Inc.

1 other network uses the same organisation name; together with AS20340 they announce 37,888 IPv4 addresses.

ASNNameIPv4 addresses

AS46168CALLTOWER - CallTower, Inc. US256

Similar-sized networks in United States

ASNNameIPv4 addresses

AS15171#1615 TOMBIGBEE-FIBER - Tombigbee Fiber LLC37,888

AS397976#1616 CA-1546-ASN-1 - Central Access, Inc.37,888

AS395846#1617 DIRECTCOMID - Direct Communications Rockland, Inc37,632

AS55140#1619 SHO-ME-TECHNOLOGIES - Sho Me Technologies, LLC37,376

AS11951#1620 MCSP - Medical Computer Systems37,376

AS401696#1621 COGNETCLOUD - cognetcloud INC37,376

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