172.56.134.0/23

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:      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:        [email protected]
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:        [email protected]
Source:         ARIN

Overlapping Ranges

BGP prefixes that contain 172.56.134.0/23

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

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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
72.236.154.23	AS3356 Level 3 Parent, LLC	`3.52ms` from Ashburn, US
46.246.162.231	AS1241 Forthnet	`1.93ms` from Athens, GR
41.37.18.199	AS8452 TE-AS	`3.63ms` from Cairo, EG
102.210.66.7	AS328351 DK Wireless Internet (Pty) Ltd	`4.36ms` from Cape Town, ZA
1.190.181.103	AS4837 CHINA UNICOM China169 Backbone	`7.89ms` from Changchun, CN
2.221.185.247	AS5607 Sky UK Limited	`6.25ms` from Erith, GB
3.78.242.87	AS16509 Amazon.com, Inc.	`0.41ms` from Frankfurt am Main, DE
79.213.180.183	AS3320 Deutsche Telekom AG	`9.59ms` from Frankfurt am Main, DE
43.163.128.71	AS132203 Tencent Building, Kejizhongyi Avenue	`0.85ms` from Hong Kong, HK
38.238.92.167	AS134548 DXTL Tseung Kwan O Service	`0.77ms` from Hong Kong, HK
78.186.11.135	AS9121 Turk Telekomunikasyon Anonim Sirketi	`11.87ms` from Izmir, TR
177.192.216.55	AS28573 Claro NXT Telecomunicacoes Ltda	`7.86ms` from Rio de Janeiro, BR
188.187.92.103	AS51570 JSC "ER-Telecom Holding"	`2.17ms` from Saint Petersburg, RU
23.113.210.199	AS7018 AT&T Enterprises, LLC	`19.84ms` from San Jose, US
78.13.197.247	AS16509 Amazon.com, Inc.	`0.39ms` from Santiago de Queretaro, MX
144.22.135.39	AS31898 Oracle Corporation	`0.30ms` from Sao Paulo, BR
184.66.126.119	AS6327 Shaw Communications	`9.36ms` from Seattle, US
125.158.190.167	AS4766 Korea Telecom	`1.55ms` from Seoul, KR
34.1.135.55	AS15169 Google LLC	`0.15ms` from Singapore, SG
3.113.110.119	AS16509 Amazon.com, Inc.	`0.24ms` from Tokyo, JP
38.86.20.71	AS398721 OXIO	`7.83ms` from Toronto, CA
87.184.35.119	AS3320 Deutsche Telekom AG	`2.68ms` from Berlin, DE
191.107.175.87	AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC	`4.46ms` from Bogota, CO
1.14.237.103	AS45090 Shenzhen Tencent Computer Systems Company Limited	`3.54ms` from Guangzhou, CN
156.240.160.199	AS136907 HUAWEI CLOUDS	`1.03ms` from Hong Kong, HK

Traceroute

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

traceroute -a -n -q1 -f4 -m8 172.56.135.174

traceroute to 172.56.135.174 (172.56.135.174): 8 hops max, 52 byte packets

4 [AS174] 154.54.3.9 0.955 ms

5 [AS174] 66.28.4.182 0.984 ms

6 *

7 *

8 *

Measurement taken from

IPinfo ProbeNet in New York City, US

On November 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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