172.56.140.0/23

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
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 172.56.140.0/23

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 are no domains currently hosted on this ASN.

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
3.217.250.71	AS14618 Amazon.com, Inc.	`0.55ms` from Ashburn, US
71.66.231.183	AS10796 Charter Communications Inc	`6.51ms` from Cleveland, US
79.205.125.87	AS3320 Deutsche Telekom AG	`8.22ms` from Frankfurt am Main, DE
81.143.237.215	AS2856 British Telecommunications PLC	`2.42ms` from London, GB
38.108.175.135	AS174 Cogent Communications, LLC	`0.97ms` from San Jose, US
111.81.186.23	AS17421 Mobile Business Group	`10.22ms` from Taichung, TW
74.110.172.55	AS701 Verizon Business	`4.69ms` from Ashburn, US
171.4.199.7	AS45758 Triple T Broadband Public Company Limited	`4.96ms` from Bangkok, TH
24.61.141.55	AS7922 Comcast Cable Communications, LLC	`11.25ms` from Boston, US
102.117.130.7	AS23889 Mauritius Telecom Ltd	`1.72ms` from Ebene, MU
2.154.39.71	AS6739 Vodafone ONO AS	`10.31ms` from Madrid, ES
123.243.55.135	AS7545 TPG Telecom Limited	`1.14ms` from Melbourne, AU
58.216.49.183	AS4134 CHINANET-BACKBONE	`3.28ms` from Nanjing, CN
67.87.7.135	AS6128 Cablevision Systems Corp.	`7.86ms` from New York City, US
126.142.6.167	AS17676 SoftBank Corp.	`3.89ms` from Osaka, JP
149.169.219.199	AS2900 Arizona Tri University Network	`0.59ms` from Phoenix, US
67.183.197.39	AS7922 Comcast Cable Communications, LLC	`3.81ms` from Seattle, US
122.254.197.103	AS17857 SK Broadband Co Ltd	`6.88ms` from Seoul, KR
210.107.75.119	AS9704 Korea Investment Trust Management Securities Co.,LTD	`0.98ms` from Seoul, KR
121.4.84.247	AS45090 Shenzhen Tencent Computer Systems Company Limited	`1.00ms` from Shanghai, CN
52.64.107.103	AS16509 Amazon.com, Inc.	`0.13ms` from Sydney, AU
175.151.227.183	AS4837 CHINA UNICOM China169 Backbone	`12.79ms` from Tieling, CN
20.210.117.199	AS8075 Microsoft Corporation	`0.15ms` from Tokyo, JP
75.4.170.167	AS7018 AT&T Enterprises, LLC	`11.64ms` from Atlanta, US
65.17.171.103	AS19323 Holyoke Gas & Electric Department	`2.73ms` from Boston, US

Traceroute

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

traceroute -a -n -q1 -m5 172.56.141.151

traceroute to 172.56.141.151 (172.56.141.151): 5 hops max, 52 byte packets

1 [AS31898] 140.204.222.184 0.195 ms

2 [AS21928] 66.94.0.89 0.855 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Ashburn, US

On March 20th 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.

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