AS21928 173.4.20.0/24 CIDR and IP Range Summary.ASN: 21928 - T-Mobile USA Inc.Host Count: 254Addressable IPs: 256 173.4.20.0173.4.20.1173.4.20.2173.4.20.3173.4.20.4173.4.20.5173.4.20.6173.4.20.7173.4.20.8173.4.20.9173.4.20.10173.4.20.11173.4.20.12173.4.20.13173.4.20.14173.4.20.15173.4.20.16173.4.20.17173.4.20.18173.4.20.19173.4.20.20173.4.20.21173.4.20.22173.4.20.23173.4.20.24173.4.20.25173.4.20.26173.4.20.27173.4.20.28173.4.20.29173.4.20.30173.4.20.31173.4.20.32173.4.20.33173.4.20.34173.4.20.35173.4.20.36173.4.20.37173.4.20.38173.4.20.39173.4.20.40173.4.20.41173.4.20.42173.4.20.43173.4.20.44173.4.20.45173.4.20.46173.4.20.47173.4.20.48173.4.20.49173.4.20.50173.4.20.51173.4.20.52173.4.20.53173.4.20.54173.4.20.55173.4.20.56173.4.20.57173.4.20.58173.4.20.59173.4.20.60173.4.20.61173.4.20.62173.4.20.63173.4.20.64173.4.20.65173.4.20.66173.4.20.67173.4.20.68173.4.20.69173.4.20.70173.4.20.71173.4.20.72173.4.20.73173.4.20.74173.4.20.75173.4.20.76173.4.20.77173.4.20.78173.4.20.79173.4.20.80173.4.20.81173.4.20.82173.4.20.83173.4.20.84173.4.20.85173.4.20.86173.4.20.87173.4.20.88173.4.20.89173.4.20.90173.4.20.91173.4.20.92173.4.20.93173.4.20.94173.4.20.95173.4.20.96173.4.20.97173.4.20.98173.4.20.99173.4.20.100173.4.20.101173.4.20.102173.4.20.103173.4.20.104173.4.20.105173.4.20.106173.4.20.107173.4.20.108173.4.20.109173.4.20.110173.4.20.111173.4.20.112173.4.20.113173.4.20.114173.4.20.115173.4.20.116173.4.20.117173.4.20.118173.4.20.119173.4.20.120173.4.20.121173.4.20.122173.4.20.123173.4.20.124173.4.20.125173.4.20.126173.4.20.127173.4.20.128173.4.20.129173.4.20.130173.4.20.131173.4.20.132173.4.20.133173.4.20.134173.4.20.135173.4.20.136173.4.20.137173.4.20.138173.4.20.139173.4.20.140173.4.20.141173.4.20.142173.4.20.143173.4.20.144173.4.20.145173.4.20.146173.4.20.147173.4.20.148173.4.20.149173.4.20.150173.4.20.151173.4.20.152173.4.20.153173.4.20.154173.4.20.155173.4.20.156173.4.20.157173.4.20.158173.4.20.159173.4.20.160173.4.20.161173.4.20.162173.4.20.163173.4.20.164173.4.20.165173.4.20.166173.4.20.167173.4.20.168173.4.20.169173.4.20.170173.4.20.171173.4.20.172173.4.20.173173.4.20.174173.4.20.175173.4.20.176173.4.20.177173.4.20.178173.4.20.179173.4.20.180173.4.20.181173.4.20.182173.4.20.183173.4.20.184173.4.20.185173.4.20.186173.4.20.187173.4.20.188173.4.20.189173.4.20.190173.4.20.191173.4.20.192173.4.20.193173.4.20.194173.4.20.195173.4.20.196173.4.20.197173.4.20.198173.4.20.199173.4.20.200173.4.20.201173.4.20.202173.4.20.203173.4.20.204173.4.20.205173.4.20.206173.4.20.207173.4.20.208173.4.20.209173.4.20.210173.4.20.211173.4.20.212173.4.20.213173.4.20.214173.4.20.215173.4.20.216173.4.20.217173.4.20.218173.4.20.219173.4.20.220173.4.20.221173.4.20.222173.4.20.223173.4.20.224173.4.20.225173.4.20.226173.4.20.227173.4.20.228173.4.20.229173.4.20.230173.4.20.231173.4.20.232173.4.20.233173.4.20.234173.4.20.235173.4.20.236173.4.20.237173.4.20.238173.4.20.239173.4.20.240173.4.20.241173.4.20.242173.4.20.243173.4.20.244173.4.20.245173.4.20.246173.4.20.247173.4.20.248173.4.20.249173.4.20.250173.4.20.251173.4.20.252173.4.20.253173.4.20.254173.4.20.255