172.56.156.0/23

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 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

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
195.214.75.103	AS22646 Hargray Communications Group, Inc.	`14.96ms` from Atlanta, US
92.78.255.167	AS3209 Vodafone GmbH	`5.60ms` from Berlin, DE
184.155.59.199	AS11492 CABLE ONE, INC.	`13.62ms` from Chicago, US
3.133.207.199	AS16509 Amazon.com, Inc.	`0.14ms` from Columbus, US
3.18.233.183	AS16509 Amazon.com, Inc.	`0.16ms` from Columbus, US
66.218.148.135	AS36695 Region 5 Education Service Center	`7.96ms` from Dallas, US
64.9.193.71	AS32477 Otava, LLC	`1.42ms` from Detroit, US
47.139.9.167	AS5650 Frontier Communications of America, Inc.	`5.39ms` from Los Angeles, US
46.25.42.39	AS12430 VODAFONE ESPANA S.A.U.	`3.31ms` from Madrid, ES
76.23.21.7	AS7922 Comcast Cable Communications, LLC	`6.78ms` from Salt Lake City, US
222.184.119.87	AS4134 CHINANET-BACKBONE	`8.59ms` from Shanghai, CN
60.133.202.167	AS17676 SoftBank Corp.	`2.99ms` from Tokyo, JP
223.159.202.23	AS4134 CHINANET-BACKBONE	`6.67ms` from Changsha, CN
73.210.241.103	AS7922 Comcast Cable Communications, LLC	`5.41ms` from Chicago, US
42.178.205.167	AS4837 CHINA UNICOM China169 Backbone	`4.05ms` from Liaoyang, CN
185.209.152.231	AS41839 Concentrix Europe Limited	`11.46ms` from London, GB
114.19.91.23	AS2516 KDDI CORPORATION	`6.35ms` from Osaka, JP
73.68.30.231	AS7922 Comcast Cable Communications, LLC	`6.65ms` from Providence, US
54.86.177.55	AS14618 Amazon.com, Inc.	`0.20ms` from Reston, US
218.55.131.23	AS9318 SK Broadband Co Ltd	`1.49ms` from Seoul, KR
34.169.0.199	AS396982 Google LLC	`0.14ms` from The Dalles, US
104.41.170.167	AS8075 Microsoft Corporation	`0.16ms` from Tokyo, JP
58.44.35.55	AS4134 CHINANET-BACKBONE	`2.96ms` from Changsha, CN
8.28.228.23	AS396379 Bank OZK	`8.26ms` from Dallas, US
36.141.42.23	AS9808 China Mobile Communications Group Co., Ltd.	`5.47ms` from Guangzhou, CN

Traceroute

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

traceroute -a -n -q1 -m5 172.56.156.115

traceroute to 172.56.156.115 (172.56.156.115): 5 hops max, 52 byte packets

1 [AS15169] 142.250.62.135 1.243 ms

2 [AS15169] 216.239.62.134 1.249 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Dallas, 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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