172.56.216.0/21

AS21928 · T-Mobile USA, Inc.

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Summary

Country	United States
Domain	t-mobile.com
ASN	AS21928
Registry	ARIN
ID	TMO9

WHOIS Details

NetHandle:      NET-172-32-0-0-1
OrgID:          TMOBI
Parent:         NET-172-0-0-0-0
NetName:        TMO9
NetRange:       172.32.0.0 - 172.63.255.255
NetType:        allocation
OriginAS:       21928
Comment:        Geofeed https://raw.githubusercontent.com/tmobile/tmus-geofeed/main/tmus-geo-ip.txt
RegDate:        2012-09-18
Updated:        2020-11-18
Source:         ARIN


OrgID:          TMOBI
OrgName:        T-Mobile USA, Inc.
CanAllocate:    
Street:         12920 SE 38th Street
City:           Bellevue
State/Prov:     WA
Country:        US
PostalCode:     98006
RegDate:        2003-01-02
Updated:        2017-01-28
OrgAdminHandle: DNSAD11-ARIN
OrgTechHandle:  DNSAD11-ARIN
OrgAbuseHandle: ABUSE4857-ARIN
Source:         ARIN


POCHandle:      DNSAD11-ARIN
IsRole:         Y
LastName:       DNS Administrators
FirstName:      
Street:         12920 SE 38th Street
City:           Bellevue
State/Prov:     WA
Country:        US
PostalCode:     98027
RegDate:        2003-01-02
Updated:        2025-01-09
OfficePhone:    +1-888-662-4662
Mailbox:        ARINtechcontact@t-mobile.com
Source:         ARIN


POCHandle:      ABUSE4857-ARIN
IsRole:         Y
LastName:       abuse
FirstName:      
Street:         12920 SE 38th Street
City:           Bellevue
State/Prov:     WA
Country:        US
PostalCode:     98006
RegDate:        2014-09-23
Updated:        2025-05-27
OfficePhone:    +1-888-662-4662
Mailbox:        abuse@t-mobile.com
Source:         ARIN

Hosted domains

There are 8 domain names hosted across 8 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
172.56.221.157	ratchetrodgarage.com	1

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.

Useful for Cybersecurity

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Pingable IPs

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address	ASN	Details
73.82.22.133	AS7922 Comcast Cable Communications, LLC	`3.92ms` from Atlanta, US
63.177.7.213	AS16509 Amazon.com, Inc.	`0.36ms` from Frankfurt am Main, DE
210.33.72.5	AS4538 China Education and Research Network Center	`5.24ms` from Hangzhou, CN
195.87.225.133	AS15924 Vodafone Net Iletisim Hizmetler AS	`2.12ms` from Istanbul, TR
196.35.189.5	AS3741 Dimension Data	`1.07ms` from Johannesburg, ZA
37.37.174.117	AS42961 Mobile Telecommunications Company	`7.45ms` from Kuwait City, KW
90.216.161.53	AS5607 Sky UK Limited	`4.42ms` from London, GB
185.108.170.117	AS5631 Telcom Networks Limited	`0.45ms` from London, GB
104.221.205.85	AS22552 eSited Solutions	`0.31ms` from Los Angeles, US
45.186.8.21	AS269453 LUCIANO YAMASHIRO PINTO	`7.72ms` from Osasco, BR
90.29.64.117	AS3215 Orange S.A.	`6.88ms` from Paris, FR
78.44.234.149	AS16019 Vodafone Czech Republic a.s.	`0.75ms` from Prague, CZ
68.229.70.133	AS22773 Cox Communications Inc.	`9.21ms` from Providence, US
187.57.84.37	AS27699 TELEFÔNICA BRASIL S.A	`3.06ms` from Sao Paulo, BR
58.40.181.181	AS4812 China Telecom (Group)	`2.72ms` from Shanghai, CN
16.170.116.213	AS16509 Amazon.com, Inc.	`0.14ms` from Stockholm, SE
1.195.233.101	AS4134 CHINANET-BACKBONE	`11.68ms` from Taiyuan, CN
101.74.226.149	AS4837 CHINA UNICOM China169 Backbone	`6.96ms` from Tianjin, CN
59.128.203.165	AS2516 KDDI CORPORATION	`2.41ms` from Tokyo, JP
110.130.207.53	AS9824 JCOM Co., Ltd.	`13.38ms` from Tokyo, JP
91.118.103.213	AS8412 T-Mobile Austria GmbH	`0.90ms` from Vienna, AT
5.143.73.69	AS12389 PJSC Rostelecom	`0.95ms` from Vladivostok, RU
210.55.143.37	AS4648 Global-Gateway Internet	`1.95ms` from Auckland, NZ
73.168.194.5	AS7922 Comcast Cable Communications, LLC	`5.62ms` from Chicago, US
76.92.34.53	AS10796 Charter Communications Inc	`14.12ms` from Detroit, US

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

traceroute -a -n -q1 -f5 -m12 172.56.219.140

traceroute to 172.56.219.140 (172.56.219.140): 12 hops max, 52 byte packets

5 [AS63949] 45.79.12.101 0.433 ms

6 [AS20940] 23.203.147.38 0.879 ms

7 [AS20940] 23.209.172.88 1.192 ms

8 [AS20940] 23.209.172.95 0.883 ms

9 [AS21928] 66.94.2.112 3.387 ms

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Measurement taken from

IPinfo ProbeNet in Richardson, US

On August 28th 2025

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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