172.56.208.0/21

AS21928 · T-Mobile USA, Inc.

Need more data or want to access it via API or data downloads? Sign up to get free access

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:      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


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

Hosted domains

There are 6 domain names hosted across 6 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
172.56.210.16	rands.us	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

Read more

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
73.174.251.149	AS7922 Comcast Cable Communications, LLC	`13.08ms` from Ashburn, US
73.52.194.133	AS7922 Comcast Cable Communications, LLC	`12.21ms` from Ashburn, US
94.69.172.117	AS6799 Ote SA (Hellenic Telecommunications Organisation)	`13.68ms` from Athens, GR
173.188.216.5	AS7029 Windstream Communications LLC	`9.13ms` from Atlanta, US
91.34.232.165	AS3320 Deutsche Telekom AG	`7.39ms` from Frankfurt am Main, DE
90.217.131.149	AS5607 Sky UK Limited	`9.09ms` from London, GB
90.192.242.133	AS5607 Sky UK Limited	`0.82ms` from London, GB
148.253.140.21	AS31727 Node4 Limited	`2.01ms` from Manchester, GB
34.23.163.37	AS396982 Google LLC	`0.15ms` from Moncks Corner, US
110.67.77.53	AS2527 Sony Network Communications Inc.	`10.42ms` from Osaka, JP
114.179.159.165	AS4713 NTT Communications Corporation	`1.23ms` from Osaka, JP
65.74.139.149	AS17018 Quality Technology Services, LLC	`3.74ms` from San Jose, US
38.14.166.229	AS54600 PEG TECH INC	`0.19ms` from San Jose, US
174.6.22.5	AS6327 Shaw Communications Inc.	`9.08ms` from Seattle, US
96.82.147.117	AS7922 Comcast Cable Communications, LLC	`7.22ms` from Secaucus, US
211.63.90.53	AS38661 abcle	`2.90ms` from Seoul, KR
14.91.115.197	AS4766 Korea Telecom	`8.67ms` from Seoul, KR
182.21.58.21	AS10010 TOKAI Communications Corporation	`2.89ms` from Tokyo, JP
126.78.169.149	AS17676 SoftBank Corp.	`2.87ms` from Tokyo, JP
87.226.138.181	AS12389 PJSC Rostelecom	`0.16ms` from Yekaterinburg, RU
40.172.14.21	AS16509 Amazon.com, Inc.	`0.11ms` from Dubai, AE
54.37.77.229	AS16276 OVH SAS	`0.12ms` from Frankfurt am Main, DE
134.93.10.85	AS2857 Johannes Gutenberg-Universitaet Mainz	`1.28ms` from Frankfurt am Main, DE
31.202.165.229	AS34700 MAXNET TELECOM, LTD	`6.32ms` from Kyiv, UA
47.144.148.213	AS5650 Frontier Communications of America, Inc.	`2.10ms` from Los Angeles, US

Traceroute

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

traceroute -a -n -q1 -f7 -m10 172.56.213.47

traceroute to 172.56.213.47 (172.56.213.47): 10 hops max, 52 byte packets

7 [AS9121] 212.156.120.120 0.501 ms

8 *

9 *

10 *

Measurement taken from

IPinfo ProbeNet in Istanbul, TR

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.

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales