172.56.166.0/23

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:      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


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

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

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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
5.30.201.71	AS15802 Emirates Integrated Telecommunications Company PJSC	`3.16ms` from Dubai, AE
112.94.19.247	AS17622 China Unicom Guangzhou network	`3.96ms` from Guangzhou, CN
108.157.59.103	AS16509 Amazon.com, Inc.	`0.63ms` from Istanbul, TR
5.226.142.119	AS25369 Hydra Communications Ltd	`0.39ms` from London, GB
96.62.147.87	AS174 Cogent Communications	`0.26ms` from Los Angeles, US
67.49.34.247	AS20001 Charter Communications Inc	`9.62ms` from Los Angeles, US
88.23.44.87	AS3352 TELEFONICA DE ESPANA S.A.U.	`10.98ms` from Madrid, ES
80.58.177.7	AS3352 TELEFONICA DE ESPANA S.A.U.	`0.93ms` from Madrid, ES
34.49.222.247	AS396982 Google LLC	`0.08ms` from Melbourne, AU
97.220.139.231	AS6167 Verizon Business	`18.22ms` from Miami, US
93.89.38.167	AS35132 Enivest	`9.23ms` from Oslo, NO
34.222.114.167	AS16509 Amazon.com, Inc.	`4.99ms` from Portland, US
14.60.80.23	AS4766 Korea Telecom	`2.06ms` from Seoul, KR
5.15.252.55	AS8708 DIGI ROMANIA S.A.	`5.25ms` from Timisoara, RO
99.249.237.167	AS812 Rogers Communications Canada Inc.	`8.23ms` from Toronto, CA
65.18.175.199	AS15600 Quickline AG	`3.70ms` from Zuerich, CH
47.35.81.39	AS20115 Charter Communications LLC	`8.62ms` from Chicago, US
34.61.119.183	AS396982 Google LLC	`0.12ms` from Council Bluffs, US
113.174.136.199	AS45899 VNPT Corp	`3.18ms` from Da Nang, VN
52.58.67.215	AS16509 Amazon.com, Inc.	`0.27ms` from Frankfurt am Main, DE
90.213.215.39	AS5607 Sky UK Limited	`10.46ms` from London, GB
179.213.245.135	AS28573 Claro NXT Telecomunicacoes Ltda	`5.77ms` from Sao Paulo, BR
125.208.117.247	AS17849 SK Broadband Co Ltd	`2.12ms` from Seoul, KR
106.252.131.183	AS3786 LG DACOM Corporation	`1.88ms` from Seoul, KR
14.90.56.87	AS4766 Korea Telecom	`1.57ms` from Seoul, KR

Traceroute

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

traceroute -a -n -q1 -m5 172.56.166.189

traceroute to 172.56.166.189 (172.56.166.189): 5 hops max, 52 byte packets

1 [AS213941] 84.32.26.1 0.082 ms

2 [AS21928] 172.55.0.9 0.24 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Paris, FR

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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