172.56.120.0/23

AS21928 · T-Mobile USA, Inc.

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Summary

Country	United States
Domain	t-mobile.com
ASN	AS21928
Parent Range	172.32.0.0/11
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
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:        2026-01-08
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

Overlapping Ranges

BGP prefixes that contain 172.56.120.0/23

Range	ASN	Company	Num of IPs
172.32.0.0/11	AS21928	T-Mobile USA, Inc.	2,097,152

Nearby Ranges

BGP prefixes that overlap with 172.56.0.0/16

Range	ASN	Company	Num of IPs
172.32.0.0/11	AS21928	T-Mobile USA, Inc.	2,097,152

Hosted domains

There is 1 domain name hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
172.56.120.80	zeropull.org	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
198.244.48.71	AS396479 Mailgun Technologies Inc.	`0.89ms` from Ashburn, US
24.159.111.87	AS20115 Charter Communications LLC	`6.24ms` from Atlanta, US
46.50.12.103	AS42863 MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A.	`13.97ms` from Braga, PT
186.19.56.215	AS27747 Telecentro S.A.	`2.59ms` from Buenos Aires, AR
92.138.94.7	AS3215 Orange S.A.	`8.23ms` from Frankfurt am Main, DE
81.96.23.71	AS5089 Virgin Media Limited	`11.30ms` from London, GB
119.18.170.39	AS17534 NSK Co.,Ltd.	`6.41ms` from Osaka, JP
73.199.169.215	AS7922 Comcast Cable Communications, LLC	`6.46ms` from Secaucus, US
139.224.190.183	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`2.32ms` from Shanghai, CN
43.173.132.103	AS132203 Tencent Building, Kejizhongyi Avenue	`0.66ms` from Singapore, SG
165.228.191.167	AS1221 Telstra Limited	`1.52ms` from Sydney, AU
18.98.193.87	AS16509 Amazon.com, Inc.	`0.26ms` from Sydney, AU
60.247.84.55	AS4847 China Networks Inter-Exchange	`2.70ms` from Tianjin, CN
52.199.136.199	AS16509 Amazon.com, Inc.	`0.20ms` from Tokyo, JP
66.183.244.103	AS852 TELUS Communications Inc.	`3.64ms` from Vancouver, CA
97.201.153.55	AS6167 Verizon Business	`10.31ms` from Atlanta, US
59.93.239.135	AS9829 National Internet Backbone	`13.00ms` from Bengaluru, IN
188.228.90.55	AS214875 Altibox Danmark AS	`5.61ms` from Copenhagen, DK
66.33.206.231	AS26347 New Dream Network, LLC	`0.31ms` from Hillsboro, US
92.17.15.87	AS13285 TalkTalk Communications Limited	`1.75ms` from London, GB
13.43.234.151	AS16509 Amazon.com, Inc.	`0.21ms` from London, GB
95.165.167.199	AS25513 PJSC Moscow city telephone network	`2.07ms` from Moscow, RU
123.230.43.55	AS7522 STNet, Incorporated	`4.12ms` from Osaka, JP
185.71.210.135	AS25400 Telia Norge AS	`9.37ms` from Sandefjord, NO
134.186.254.247	AS1226 California Department of Technology	`3.58ms` from Santa Clara, US

Traceroute

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

traceroute -a -n -q1 -f4 -m7 172.56.120.6

traceroute to 172.56.120.6 (172.56.120.6): 7 hops max, 52 byte packets

4 [AS21928] 100.199.0.93 0.102 ms

5 *

6 *

7 *

Measurement taken from

IPinfo ProbeNet in Tieling, CN

On March 21st 2026

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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