172.44.0.21
Mobile Carrier
Data retrieved at
Network
ASN
IP Range
Company
T-Mobile USA, Inc.
Network
TMO9
Using networksdb.io for network lookups.
Hostname
Not available.
AS Domain
t-mobile.com
Using host.io for pre-visualize domains.
Type
Mobile Carrier
Handle
NET-172-32-0-0-1
Registered
2012-09-18
Last Changed
2020-11-18
View raw RDAP
{
"arin_originas0_originautnums": [],
"cidr0_cidrs": [
{
"v4prefix": "172.32.0.0",
"length": 11
}
],
"endAddress": "172.63.255.255",
"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/ip/172.44.0.21"
},
{
"href": "https://whois.arin.net/rest/poc/DNSAD11-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/172.44.0.21"
}
],
"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/ip/172.44.0.21"
},
{
"href": "https://whois.arin.net/rest/poc/ABUSE4857-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/172.44.0.21"
}
],
"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/ip/172.44.0.21"
},
{
"href": "https://whois.arin.net/rest/org/TMOBI",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/172.44.0.21"
}
],
"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": "2020-11-18T12:32:25-05:00"
},
{
"eventAction": "registration",
"eventDate": "2012-09-18T15:32:10-04:00"
}
],
"handle": "NET-172-32-0-0-1",
"ipVersion": "v4",
"links": [
{
"href": "https://rdap.arin.net/registry/ip/172.32.0.0",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/172.44.0.21"
},
{
"href": "https://whois.arin.net/rest/net/NET-172-32-0-0-1",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/172.44.0.21"
}
],
"name": "TMO9",
"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/ip/172.44.0.21"
}
],
"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/ip/172.44.0.21"
}
],
"title": "Whois Inaccuracy Reporting"
},
{
"description": [
"Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
],
"title": "Copyright Notice"
}
],
"objectClassName": "ip network",
"parentHandle": "NET-172-0-0-0-0",
"port43": "whois.arin.net",
"rdapConformance": [
"nro_rdap_profile_0",
"rdap_level_0",
"cidr0",
"arin_originas0"
],
"remarks": [
{
"description": [
"Geofeed https://raw.githubusercontent.com/tmobile/tmus-geofeed/main/tmus-geo-ip.txt"
],
"title": "Registration Comments"
}
],
"startAddress": "172.32.0.0",
"status": [
"active"
],
"type": "DIRECT ALLOCATION"
}
Security
No security threats detected for this IP.
VPN
Proxy
Tor
Hosting
Residential Proxy
Bogon
Abuser
Crawler
RPKI
RPKI Origin Validation
RPKI verifies that an IP prefix is legitimately announced by the authorized Autonomous System (ASN) using Route Origin Authorizations (ROAs).
Valid.
This prefix is correctly authorized by a valid ROA.
VALID
Validated Prefix
172.32.0.0/11
Authorized ASN
AS21928
Abuse Contacts
IP Geolocation
Country
United States
Time Zone
America/Chicago
Coordinates
37.751, -97.822
Continent
North America
European Union
No.
Phone prefix
+1
Currency
US Dollar (USD $)