172.56.10.0/23

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:      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 2 domain names hosted across 2 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP

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
151.233.133.199	AS58224 Iran Telecommunication Company PJS	`15.46ms` from Az Za`ayin, QA
86.59.220.231	AS5483 Magyar Telekom Plc.	`1.34ms` from Budapest, HU
46.107.154.39	AS5483 Magyar Telekom Plc.	`5.43ms` from Budapest, HU
91.152.139.39	AS719 Elisa Oyj	`0.68ms` from Helsinki, FI
130.164.186.151	AS25019 Saudi Telecom Company JSC	`3.79ms` from Manama, BH
189.226.34.87	AS8151 UNINET	`1.27ms` from Mexico City, MX
121.80.186.119	AS17511 OPTAGE Inc.	`2.61ms` from Osaka, JP
60.151.214.71	AS17676 SoftBank Corp.	`3.97ms` from Osaka, JP
27.84.54.71	AS2516 KDDI CORPORATION	`4.58ms` from Osaka, JP
187.46.76.247	AS26615 TIM S/A	`2.01ms` from Osasco, BR
126.131.36.103	AS17676 SoftBank Corp.	`15.61ms` from Tokyo, JP
111.63.250.7	AS24547 Hebei Mobile Communication Company Limited	`8.46ms` from Beijing, CN
95.85.69.7	AS199524 G-Core Labs S.A.	`0.11ms` from Bucharest, RO
13.245.170.103	AS16509 Amazon.com, Inc.	`0.68ms` from Cape Town, ZA
89.41.134.247	AS28919 Stadtwerke Kufstein GmbH	`9.72ms` from Frankfurt am Main, DE
113.184.155.39	AS45899 VNPT Corp	`2.41ms` from Ho Chi Minh City, VN
197.64.226.39	AS16637 MTN SA	`12.04ms` from Johannesburg, ZA
113.224.32.87	AS4837 CHINA UNICOM China169 Backbone	`8.30ms` from Liaoyang, CN
94.82.123.7	AS3269 Telecom Italia S.p.A.	`17.31ms` from Milan, IT
50.80.39.87	AS30036 Mediacom Communications Corp	`16.57ms` from Minneapolis, US
203.8.18.7	AS10150 Optus Customer Network	`0.71ms` from Sydney, AU
223.75.231.247	AS9808 China Mobile Communications Group Co., Ltd.	`3.49ms` from Wuhan, CN
121.36.83.71	AS55990 Huawei Cloud Service data center	`3.64ms` from Beijing, CN
84.0.185.247	AS5483 Magyar Telekom Plc.	`5.52ms` from Budapest, HU
51.137.145.183	AS8075 Microsoft Corporation	`0.20ms` from Cardiff, GB

Traceroute

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

traceroute -a -n -q1 -f3 -m6 172.56.11.158

traceroute to 172.56.11.158 (172.56.11.158): 6 hops max, 52 byte packets

3 [] 151.148.14.121 1.502 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in San Jose, 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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