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AS21928
T-MOBILE-AS21928 - T-Mobile USA, Inc. Announcing routesAS nameT-MOBILE-AS21928
OrganisationT-Mobile USA, Inc.
Registry (RIR)ARIN
HandleAS21928
RangeAS21928
Registered12 Jun 2002
Last changed24 Feb 2012
Abuse contact[email protected]
283IPv4 prefixes
258IPv6 prefixes
21Upstreams
3Downstreams
Upstreams
| AS | Network name | Visibility |
|---|---|---|
| AS6461 | ZAYO-6461 - Zayo Bandwidth | 581 |
| AS3356 | LEVEL3 - Level 3 Parent, LLC | 518 |
| AS174 | COGENT-174 - Cogent Communications, LLC | 174 |
| AS6939 | HURRICANE - Hurricane Electric LLC | 71 |
| AS9002 | RETN-AS RETN Limited | 15 |
| AS4637 | ASN-TELSTRA-GLOBAL - Telstra Global | 8 |
| AS60068 | CDN77 Datacamp Limited | 6 |
| AS4230 | AS4230 - CLARO S.A. | 4 |
| AS7195 | AS7195 - EDGEUNO S.A.S | 4 |
| AS35280 | F5 F5 Networks SARL | 3 |
| AS37468 | Angola Cables - Angola Cables | 3 |
| AS58453 | CMI-INT-HK - China Mobile International Limited | 3 |
| AS6057 | AS6057 - Administracion Nacional de Telecomunicaciones | 3 |
| AS1031 | PEER1-1031 - PEER 1031 LLC | 2 |
| AS33891 | CORE-BACKBONE Core-Backbone GmbH | 1 |
IPv4 prefixes (283)
172.56.56.0/2366.94.18.0/23172.59.32.0/21172.59.8.0/21208.54.75.0/24172.56.250.0/2366.94.14.0/24172.56.196.0/23172.56.44.0/23208.54.35.0/24172.56.76.0/23172.58.48.0/2175.122.0.0/17172.56.210.0/23172.56.40.0/23172.59.184.0/21172.56.86.0/23208.54.117.0/24172.59.160.0/21172.56.112.0/21172.56.62.0/23172.56.126.0/23172.59.88.0/21172.56.176.0/23172.56.0.0/16208.54.36.0/24172.56.240.0/21172.56.220.0/23172.56.208.0/21172.56.8.0/23172.58.8.0/21168.73.0.0/17208.54.138.0/2366.94.6.0/24172.56.240.0/23208.54.96.0/19172.56.172.0/23208.54.32.0/24172.56.152.0/23172.56.182.0/23104.152.20.0/24208.54.19.0/24172.56.34.0/23172.56.74.0/2374.60.0.0/16162.173.104.0/21172.59.104.0/21172.58.176.0/21172.56.108.0/23172.56.252.0/23172.56.12.0/23172.56.192.0/21172.59.224.0/21208.54.67.0/24208.54.90.0/24208.54.18.0/24172.56.120.0/21162.187.128.0/17172.56.242.0/23172.56.118.0/23172.56.88.0/23172.56.0.0/23208.54.87.0/24174.141.208.0/20172.56.222.0/23172.59.56.0/2172.250.0.0/1775.122.128.0/17168.73.128.0/17172.59.216.0/21208.54.70.0/24208.54.153.0/24172.56.224.0/2366.94.24.0/24172.56.114.0/23172.59.240.0/21162.173.56.0/21172.56.106.0/23172.56.204.0/23172.56.68.0/2375.123.128.0/17172.56.64.0/2366.94.5.0/24172.56.192.0/23172.56.92.0/23172.59.168.0/21208.54.142.0/24162.173.40.0/21172.56.88.0/21172.56.26.0/23172.56.224.0/21172.56.178.0/23208.54.128.0/19172.56.180.0/23172.56.58.0/23172.56.90.0/23172.56.232.0/21172.59.0.0/21208.54.40.0/24172.56.216.0/21172.59.176.0/21172.56.78.0/23172.56.30.0/23172.59.200.0/21172.58.128.0/21172.56.208.0/23172.56.102.0/23208.54.145.0/2466.94.0.0/19172.56.96.0/21208.54.136.0/23172.56.148.0/23208.54.143.0/24206.29.190.0/23208.54.112.0/24162.173.48.0/2197.65.105.0/24172.56.152.0/21172.56.168.0/21208.54.39.0/24172.56.84.0/23172.58.160.0/21162.191.0.0/16162.173.20.0/24172.56.216.0/23172.56.82.0/23172.59.40.0/21208.54.34.0/24162.186.128.0/17208.54.128.0/20162.190.0.0/1675.123.0.0/17172.58.56.0/21208.54.97.0/24172.56.116.0/23208.54.144.0/20172.56.202.0/23100.128.0.0/9172.56.190.0/23172.56.174.0/23208.54.100.0/2266.94.4.0/24208.54.86.0/24172.56.238.0/23208.54.134.0/23172.59.96.0/21172.58.112.0/21172.56.14.0/23208.54.140.0/23172.56.16.0/23172.56.170.0/23172.56.168.0/23172.56.186.0/23172.59.112.0/21162.173.24.0/2166.94.26.0/2466.94.30.0/24172.59.232.0/21172.56.112.0/23172.58.0.0/15172.32.0.0/11172.59.192.0/21172.56.166.0/23172.56.94.0/23162.184.0.0/15208.54.0.0/17172.59.48.0/21172.56.128.0/23172.56.20.0/23172.56.52.0/23172.56.188.0/23172.59.24.0/21172.56.244.0/2366.94.8.0/24172.59.136.0/21172.56.232.0/23172.56.10.0/23172.56.234.0/23208.54.80.0/24172.59.208.0/21208.54.157.0/24208.54.20.0/24172.56.98.0/23208.54.57.0/24172.56.156.0/2366.94.17.0/2466.94.15.0/24172.56.160.0/23172.56.60.0/23172.56.38.0/23172.56.104.0/21172.56.6.0/23208.54.16.0/24172.56.72.0/21172.56.228.0/23172.56.80.0/21208.54.158.0/24208.54.104.0/24172.56.198.0/23172.56.162.0/23170.206.0.0/17167.20.0.0/16206.29.188.0/23172.56.104.0/23172.56.72.0/23172.56.236.0/2365.76.0.0/16162.187.0.0/17172.56.24.0/23172.56.36.0/23172.56.110.0/2366.94.3.0/24172.56.4.0/23172.56.248.0/23172.56.138.0/24172.58.120.0/21172.59.72.0/21208.54.83.0/24208.54.110.0/23172.59.128.0/21162.160.0.0/11172.56.150.0/2366.94.7.0/24172.56.200.0/21172.59.144.0/21172.56.248.0/21208.54.7.0/24172.59.16.0/21208.54.66.0/24172.56.130.0/23172.56.124.0/23172.56.218.0/23172.56.46.0/23172.56.28.0/23208.54.4.0/24208.54.44.0/24172.56.200.0/23172.58.248.0/21172.56.66.0/23162.173.32.0/21172.56.64.0/21172.56.164.0/23172.56.140.0/23172.58.144.0/21208.54.37.0/24172.56.212.0/23172.56.160.0/21172.59.80.0/21172.59.64.0/21162.186.0.0/17172.56.32.0/23172.56.176.0/21172.56.18.0/23208.54.127.0/24172.56.80.0/23206.29.168.0/22172.56.122.0/23172.58.208.0/21208.54.5.0/2466.94.29.0/24208.54.85.0/24172.56.144.0/23208.54.2.0/24172.56.194.0/23170.206.128.0/17172.56.96.0/2366.94.13.0/24172.56.2.0/23172.56.136.0/23172.56.100.0/23172.59.152.0/21172.56.54.0/23172.56.42.0/23208.54.1.0/24172.58.240.0/21208.54.74.0/24172.56.120.0/23172.56.22.0/23172.59.120.0/21172.56.226.0/23172.56.154.0/23172.58.0.0/21172.56.134.0/23
IPv6 prefixes (258)
2607:fb91:5700::/402607:fb91:6100::/402607:fb91:5600::/402607:fb91:1b00::/402607:fb90:1300::/402607:fb92:1600::/402607:fb90:ee00::/402607:fb91:2800::/402607:fb91:4d00::/402607:fb90:2d00::/402607:fb90:7300::/402607:fb90:9b00::/402607:fb90:c900::/402607:fb92:1800::/402607:fb91:400::/402607:fb90:9d00::/402607:fb90:2300::/402607:fb90:e900::/402607:fb90:6c00::/382607:fb91:3800::/402607:fb90:7800::/402607:fb90:8000::/382607:fb91:3500::/402607:fb91:700::/402607:fb91:900::/402607:fb92:2700::/402607:fb92:2800::/402607:fb90:8700::/402607:fb90:4800::/402607:fb91:4500::/402607:fb92:600::/402607:fb90:6300::/402607:fb90:3500::/402607:fb90:a200::/402607:fb90::/402607:fb92:2400::/402607:fb91:8c00::/402607:fb90:3e00::/402607:fb92:1f00::/402607:fb91:c00::/402607:fb91:1800::/402607:fb91:1000::/402607:fb90:5300::/402607:fb91:3d00::/402607:fb90:f00::/402607:fb90:bb00::/402607:fb90:df00::/402607:fb90:4000::/402607:fb90:1700::/402607:fb90:3c00::/402607:fb90:6400::/402607:fb90::/282607:fb90:fd00::/402607:fb91:1f00::/402607:fb92:2200::/402607:fb91::/402607:fb92:d00::/402607:fb90:b200::/402607:fb90:600::/402607:fb90:9200::/402607:fb91:4400::/402607:fb90:f200::/402607:fb90:ac00::/402607:fb90:dd00::/402607:fb90:f900::/402607:fb92:1700::/402607:fb90:6200::/402607:fb90:1c00::/402607:fb91:f00::/402607:fb90:7700::/402607:fb91:300::/402607:fb90:b700::/402607:fb90:6100::/402607:fb90:9c00::/402607:fb90:5000::/402607:fb91:3300::/402607:fb91:2400::/402607:fb91:200::/402607:fb92:2c00::/402607:fb90:a600::/402607:fb90:b500::/402607:fb90:cb00::/402607:fb90:2500::/402607:f880:ff20::/442607:fb91:3000::/402607:fb91:bd00::/402607:fb91:2d00::/402607:fb91:5300::/402607:fb90:7e00::/402607:fb91:4000::/402607:fb91:1600::/402607:fb91:7900::/402607:fb91:a00::/402607:fb91:3b00::/402607:fb91:1d00::/402607:fb91:3100::/402607:fb90:bf00::/402607:fb90:700::/402607:fb90:b300::/402607:fb92:2000::/402607:fb90:200::/402607:fb90:cd00::/402607:fb90:fe00::/402607:fb91:8d00::/402607:fb90:d900::/402607:fb91:8b00::/402607:fb90:3f00::/402607:fb90:3d00::/402607:fb90:1800::/402607:fb90:a800::/402607:fb90:6d00::/402607:fb92:2500::/402607:fb90:4f00::/402607:fb90:5200::/402607:fb90:9500::/402607:fb91:5000::/402607:fb92:900::/402607:fb91:1a00::/402607:fb90:2200::/402607:fb91:2600::/402607:fb90:9f00::/402607:fb91:600::/402607:fb90:8e00::/402607:fb90:1200::/402607:fb91:1300::/402607:fb90:c300::/402607:fb91:3700::/402607:fb90:e300::/402607:fb90:9300::/402607:fb91:4b00::/402607:fb92:400::/402607:fb91:1500::/402607:fb90:f800::/402607:fb92:3000::/402607:fb90:5c00::/402607:fb90:d500::/402607:fb90:4a00::/402607:fb90:9000::/402607:fb90:3300::/402607:fb90:ea00::/402607:fb90:f400::/402607:fb91:3a00::/402607:fb92:500::/402607:fb90:e600::/402607:fb90:5800::/402607:fb91:1c00::/402607:fb91:d00::/402607:fb90::/322607:fb91:1900::/402607:fb92:2b00::/402607:fb91:3e00::/402607:fb91:4800::/402607:fb90:8b00::/402607:fb90:e000::/402607:fb91:5100::/402607:fb91:3c00::/402607:fb90:ec00::/402607:fb90:af00::/402607:fb91:8200::/402607:fb90:7100::/402607:fb91:4f00::/402607:fb91:b00::/402607:fb91:9000::/402607:fb90:4500::/402607:fb90:4200::/402607:fb90:bd00::/402607:fb92:100::/402607:fb90:3700::/402607:fb91:3f00::/402607:fb90:7f00::/402607:fb91:1700::/402607:fb91:e00::/402607:fb92:1c00::/402607:fb90:5700::/402607:fb90:fa00::/402607:f880:ff30::/442607:fb92:2100::/402607:fb91:1e00::/402607:fb90:d700::/402607:fb91:1400::/402607:fb90:6800::/402607:fb90:8d00::/402607:fb92:2600::/402607:fb90:300::/402607:fb92:2d00::/402607:fb91:4600::/402607:fb92:2900::/402607:fb91:8e00::/402607:fb90:b100::/402607:fb90:be00::/402607:fb90:ef00::/402607:fb90:7400::/402607:fb90:a100::/402607:fb90:9900::/402607:fb90:8100::/402607:fb90:500::/402607:fb90:f000::/402607:fb90:a500::/402607:fb90:400::/402607:fb91:3200::/402607:fb91:100::/402607:fb90:8000::/402607:fb91:4900::/402607:fb90:8f00::/402607:fb91:2700::/402607:fb91:4c00::/402607:fb90:7500::/402607:fb92:2f00::/402607:fb90:9a00::/402607:fb90:2000::/402607:fb90:d100::/402607:fb90:c200::/402607:fb90:d300::/402607:fb90:2100::/402607:fb90:5e00::/402607:fb90:3900::/402607:fb90:e200::/402607:fb91:800::/402607:fb90:d00::/402607:fb90:db00::/402607:fb90:6000::/402607:fb91:2100::/402607:fb90:cf00::/402607:fb90:2c00::/402607:fb90:5500::/402607:fb90:7a00::/402607:fb90:e00::/402607:fb91:1200::/402607:fb91:1100::/402607:fb90:a000::/402607:fb91:2e00::/402607:fb92:1900::/402607:fb92:2a00::/402607:fb90:8a00::/402001:4870:e00b::/482607:fb91:8800::/402607:fb91:2200::/402607:fb90:5f00::/402607:fb91:5200::/402607:fb90:b00::/402607:fb92:1e00::/402607:fb91:2000::/402607:fb91:2f00::/402607:fb90:e800::/402607:fb91:4100::/402607:fb91:500::/402607:fb90:fff::/482607:fb92:3100::/402607:fb91:2c00::/402607:fb90:2400::/402607:fb90:ad00::/402607:fb90:2700::/402607:fb90:800::/402607:fb90:7900::/402607:fb90:9e00::/402001:4870:150::/442607:fb91:4e00::/402607:fb90:9100::/40
RPKI-validate all prefixes of AS21928
Contacts
| Role | Name | Handle | Email / phone | Address |
|---|---|---|---|---|
| registrant | T-Mobile USA, Inc. | TMOBI | 12920 SE 38th Street, Bellevue, WA, 98006, United States | |
| administrative, technical | DNS Administrators | DNSAD11-ARIN | [email protected], +1-888-662-4662 | 12920 SE 38th Street, Bellevue, WA, 98027, United States |
| abuse | abuse | ABUSE4857-ARIN | [email protected], +1-888-662-4662 | 12920 SE 38th Street, Bellevue, WA, 98006, United States |
Raw registry response
{
"endAutnum": 21928,
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-01-08T14:48:50-05:00"
},
{
"eventAction": "registration",
"eventDate": "2003-01-02T16:30:24-05:00"
}
],
"handle": "DNSAD11-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/DNSAD11-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/21928"
},
{
"href": "https://whois.arin.net/rest/poc/DNSAD11-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/21928"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"administrative",
"technical"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "12920 SE 38th Street\nBellevue\nWA\n98027\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"DNS Administrators"
],
[
"org",
[],
"text",
"T-Mobile USA"
],
[
"kind",
[],
"text",
"group"
],
[
"email",
[],
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-888-662-4662"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-05-27T17:23:03-04:00"
},
{
"eventAction": "registration",
"eventDate": "2014-09-23T15:17:31-04:00"
}
],
"handle": "ABUSE4857-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/ABUSE4857-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/21928"
},
{
"href": "https://whois.arin.net/rest/poc/ABUSE4857-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/21928"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"abuse"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "12920 SE 38th Street\nBellevue\nWA\n98006\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"abuse"
],
[
"org",
[],
"text",
"T-Mobile US"
],
[
"kind",
[],
"text",
"group"
],
[
"email",
[],
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-888-662-4662"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2017-01-28T08:32:29-05:00"
},
{
"eventAction": "registration",
"eventDate": "2003-01-02T16:30:24-05:00"
}
],
"handle": "TMOBI",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/TMOBI",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/21928"
},
{
"href": "https://whois.arin.net/rest/org/TMOBI",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/21928"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"fn",
[],
"text",
"T-Mobile USA, Inc."
],
[
"adr",
{
"label": "12920 SE 38th Street\nBellevue\nWA\n98006\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
[],
"text",
"org"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2012-02-24T09:44:34-05:00"
},
{
"eventAction": "registration",
"eventDate": "2002-06-12T00:00:00-04:00"
}
],
"handle": "AS21928",
"links": [
{
"href": "https://rdap.arin.net/registry/autnum/21928",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/21928"
},
{
"href": "https://whois.arin.net/rest/asn/AS21928",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/21928"
}
],
"name": "T-MOBILE-AS21928",
"notices": [
{
"description": [
"By using the ARIN RDAP/Whois service, you are agreeing to the RDAP/Whois Terms of Use"
],
"links": [
{
"href": "https://www.arin.net/resources/registry/whois/tou/",
"rel": "terms-of-service",
"type": "text/html",
"value": "https://rdap.arin.net/registry/autnum/21928"
}
],
"title": "Terms of Service"
},
{
"description": [
"If you see inaccuracies in the results, please visit: "
],
"links": [
{
"href": "https://www.arin.net/resources/registry/whois/inaccuracy_reporting/",
"rel": "inaccuracy-report",
"type": "text/html",
"value": "https://rdap.arin.net/registry/autnum/21928"
}
],
"title": "Whois Inaccuracy Reporting"
},
{
"description": [
"Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
],
"title": "Copyright Notice"
}
],
"objectClassName": "autnum",
"port43": "whois.arin.net",
"rdapConformance": [
"nro_rdap_profile_0",
"rdap_level_0",
"nro_rdap_profile_asn_flat_0"
],
"startAutnum": 21928,
"status": [
"active"
]
}Results come from public internet registries and live global routing data. Results are cached for up to an hour. Lookups are logged with your IP address to prevent abuse — see our Privacy Policy.