AS21928 T-Mobile USA, Inc.

T-MOBILE-AS21928 - T-Mobile USA, Inc. · registered in the United States

IPv4 addresses13,121,792132 prefixes · 0.419% of announced IPv4

Rank in United States#15largest network in US by IPv4 space, of 18,338 · 0.96% of US

Rank worldwide#32of 79,396 networks with IPv4

IPv615 x /32 (1,048,112 x /48)194 prefixes

CountryUnited States18,679 ASNs registered there

Open AS21928 in ASN lookup Look up an IP in this network (65.76.0.1) All networks in United States

IPv4 prefixes

All 132 prefixes, in address order.

65.76.0.0/16
66.94.0.0/20
66.94.16.0/23
66.94.18.0/23
66.94.20.0/22
66.94.24.0/22
66.94.28.0/23
66.94.30.0/23
72.250.0.0/18
72.250.64.0/20
72.250.96.0/20
74.60.0.0/16
75.122.0.0/15
97.65.105.0/24
100.128.0.0/9
104.152.20.0/23
162.160.0.0/13
162.168.0.0/14
162.172.0.0/16
162.173.0.0/20
162.173.16.0/22
162.173.20.0/24
162.173.21.0/24
162.173.22.0/23
162.173.24.0/21
162.173.32.0/19
162.173.64.0/19
162.173.96.0/20
162.173.112.0/20
162.173.128.0/17
162.174.0.0/15
162.176.0.0/13
162.184.0.0/14
162.188.0.0/14
167.20.0.0/16
168.73.0.0/16
170.206.0.0/16
172.32.0.0/12
172.48.0.0/13
172.56.0.0/19
172.56.32.0/20
172.56.48.0/21
172.56.56.0/22
172.56.60.0/23
172.56.62.0/23
172.56.64.0/18
172.56.128.0/21
172.56.136.0/23
172.56.138.0/24
172.56.139.0/24
172.56.140.0/22
172.56.144.0/20
172.56.160.0/20
172.56.176.0/21
172.56.184.0/22
172.56.188.0/22
172.56.192.0/18
172.57.0.0/16
172.58.0.0/17
172.58.128.0/21
172.58.136.0/21
172.58.144.0/21
172.58.152.0/21
172.58.160.0/21
172.58.168.0/21
172.58.176.0/21
172.58.184.0/21
172.58.192.0/20
172.58.208.0/21
172.58.216.0/21
172.58.224.0/19
172.59.0.0/17
172.59.128.0/18
172.59.192.0/19
172.59.224.0/20
172.59.240.0/21
172.59.248.0/21
172.60.0.0/14
174.141.208.0/20
206.29.168.0/22
206.29.188.0/22
208.54.0.0/24
208.54.2.0/23
208.54.4.0/22
208.54.8.0/21
208.54.16.0/24
208.54.17.0/24
208.54.18.0/23
208.54.20.0/24
208.54.21.0/24
208.54.22.0/23
208.54.24.0/21
208.54.32.0/24
208.54.34.0/23
208.54.36.0/23
208.54.38.0/23
208.54.40.0/22
208.54.44.0/24
208.54.45.0/24
208.54.46.0/23
208.54.48.0/21
208.54.56.0/23
208.54.58.0/23
208.54.60.0/22
208.54.64.0/22
208.54.68.0/23
208.54.70.0/24
208.54.71.0/24
208.54.72.0/21
208.54.80.0/24
208.54.81.0/24
208.54.82.0/23
208.54.84.0/22
208.54.88.0/23
208.54.90.0/24
208.54.91.0/24
208.54.92.0/22
208.54.96.0/23
208.54.98.0/23
208.54.100.0/22
208.54.104.0/21
208.54.112.0/22
208.54.116.0/23
208.54.118.0/23
208.54.120.0/21
208.54.128.0/20
208.54.144.0/23
208.54.146.0/23
208.54.148.0/22
208.54.152.0/23
208.54.154.0/23
208.54.156.0/22

IPv6 prefixes

All 194 prefixes.

2001:4870:150::/44
2001:4870:e00b::/48
2607:f880:ff20::/43
2607:fb90::/37
2607:fb90:800::/40
2607:fb90:900::/40
2607:fb90:a00::/39
2607:fb90:c00::/38
2607:fb90:1000::/37
2607:fb90:1800::/38
2607:fb90:1c00::/40
2607:fb90:1d00::/40
2607:fb90:1e00::/39
2607:fb90:2000::/37
2607:fb90:2800::/37
2607:fb90:3000::/38
2607:fb90:3400::/39
2607:fb90:3600::/39
2607:fb90:3800::/39
2607:fb90:3a00::/39
2607:fb90:3c00::/38
2607:fb90:4000::/40
2607:fb90:4100::/40
2607:fb90:4200::/40
2607:fb90:4300::/40
2607:fb90:4400::/39
2607:fb90:4600::/39
2607:fb90:4800::/40
2607:fb90:4900::/40
2607:fb90:4a00::/40
2607:fb90:4b00::/40
2607:fb90:4c00::/38
2607:fb90:5000::/38
2607:fb90:5400::/39
2607:fb90:5600::/39
2607:fb90:5800::/38
2607:fb90:5c00::/40
2607:fb90:5d00::/40
2607:fb90:5e00::/39
2607:fb90:6000::/38
2607:fb90:6400::/40
2607:fb90:6500::/40
2607:fb90:6600::/39
2607:fb90:6800::/40
2607:fb90:6900::/40
2607:fb90:6a00::/39
2607:fb90:6c00::/39
2607:fb90:6e00::/39
2607:fb90:7000::/39
2607:fb90:7200::/39
2607:fb90:7400::/39
2607:fb90:7600::/39
2607:fb90:7800::/37
2607:fb90:8000::/38
2607:fb90:8400::/38
2607:fb90:8800::/37
2607:fb90:9000::/38
2607:fb90:9400::/39
2607:fb90:9600::/39
2607:fb90:9800::/37
2607:fb90:a000::/37
2607:fb90:a800::/40
2607:fb90:a900::/40
2607:fb90:aa00::/39
2607:fb90:ac00::/38
2607:fb90:b000::/38
2607:fb90:b400::/39
2607:fb90:b600::/39
2607:fb90:b800::/38
2607:fb90:bc00::/38
2607:fb90:c000::/40
2607:fb90:c100::/43
2607:fb90:c120::/44
2607:fb90:c130::/45
2607:fb90:c138::/46
2607:fb90:c13c::/47
2607:fb90:c13f::/48
2607:fb90:c140::/42
2607:fb90:c180::/41
2607:fb90:c200::/39
2607:fb90:c400::/38
2607:fb90:c800::/39
2607:fb90:ca00::/39
2607:fb90:cc00::/39
2607:fb90:ce00::/39
2607:fb90:d000::/39
2607:fb90:d200::/39
2607:fb90:d400::/39
2607:fb90:d600::/39
2607:fb90:d800::/39
2607:fb90:da00::/39
2607:fb90:dc00::/39
2607:fb90:de00::/39
2607:fb90:e000::/38
2607:fb90:e400::/39
2607:fb90:e600::/40
2607:fb90:e700::/40
2607:fb90:e800::/39
2607:fb90:ea00::/40
2607:fb90:eb00::/40
2607:fb90:ec00::/40
2607:fb90:ed00::/40
2607:fb90:ee00::/39
2607:fb90:f000::/40
2607:fb90:f100::/40
2607:fb90:f200::/40
2607:fb90:f300::/40
2607:fb90:f400::/40
2607:fb90:f500::/40
2607:fb90:f600::/39
2607:fb90:f800::/39
2607:fb90:fa00::/40
2607:fb90:fb00::/40
2607:fb90:fc00::/38
2607:fb91::/35
2607:fb91:2000::/39
2607:fb91:2200::/40
2607:fb91:2300::/40
2607:fb91:2400::/40
2607:fb91:2500::/40
2607:fb91:2600::/39
2607:fb91:2800::/40
2607:fb91:2900::/40
2607:fb91:2a00::/39
2607:fb91:2c00::/38
2607:fb91:3000::/38
2607:fb91:3400::/39
2607:fb91:3600::/39
2607:fb91:3800::/37
2607:fb91:4000::/38
2607:fb91:4400::/39
2607:fb91:4600::/40
2607:fb91:4700::/40
2607:fb91:4800::/37
2607:fb91:5000::/38
2607:fb91:5400::/38
2607:fb91:5800::/37
2607:fb91:6000::/39
2607:fb91:6200::/39
2607:fb91:6400::/38
2607:fb91:6800::/37
2607:fb91:7000::/37
2607:fb91:7800::/39
2607:fb91:7a00::/39
2607:fb91:7c00::/38
2607:fb91:8000::/39
2607:fb91:8200::/40
2607:fb91:8300::/40
2607:fb91:8400::/38
2607:fb91:8800::/40
2607:fb91:8900::/40
2607:fb91:8a00::/39
2607:fb91:8c00::/38
2607:fb91:9000::/40
2607:fb91:9100::/40
2607:fb91:9200::/39
2607:fb91:9400::/38
2607:fb91:9800::/37
2607:fb91:a000::/38
2607:fb91:a600::/39
2607:fb91:a800::/37
2607:fb91:b000::/37
2607:fb91:b800::/38
2607:fb91:bc00::/39
2607:fb91:be00::/39
2607:fb91:c000::/34
2607:fb92::/39
2607:fb92:200::/39
2607:fb92:400::/39
2607:fb92:600::/40
2607:fb92:700::/40
2607:fb92:800::/39
2607:fb92:a00::/39
2607:fb92:c00::/39
2607:fb92:e00::/39
2607:fb92:1000::/37
2607:fb92:1800::/38
2607:fb92:1c00::/40
2607:fb92:1d00::/40
2607:fb92:1e00::/39
2607:fb92:2000::/39
2607:fb92:2200::/40
2607:fb92:2300::/40
2607:fb92:2400::/38
2607:fb92:2800::/37
2607:fb92:3000::/39
2607:fb92:3200::/39
2607:fb92:3400::/38
2607:fb92:3800::/37
2607:fb92:4000::/34
2607:fb92:8000::/33
2607:fb93::/32
2607:fb94::/30
2607:fb98::/29

Other ASNs named T-Mobile USA, Inc.

4 other networks use the same organisation name; together with AS21928 they announce 13,480,448 IPv4 addresses.

ASNNameIPv4 addresses

AS6614USCC-ASN - T-Mobile USA, Inc. US307,968

AS18933USCC-MPLS01 - T-Mobile USA, Inc. US27,648

AS17133T-FIBER - T-Mobile USA, Inc. US22,016

AS22140T-MOBILE-AS22140 - T-Mobile USA, Inc. US1,024

Similar-sized networks in United States

ASNNameIPv4 addresses

AS6167#12 CELLCO-PART - Verizon Business18,082,816

AS714#13 APPLE-ENGINEERING - Apple Inc.16,915,200

AS209#14 CENTURYLINK-US-LEGACY-QWEST - CenturyLink Communications, LLC15,739,648

AS22773#16 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc.12,937,472

AS20115#17 CHARTER-20115 - Charter Communications LLC12,417,536

AS22394#18 CELLCO - Verizon Business12,308,992

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