172.56.186.0/23

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 172.56.186.0/23

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
172.56.187.254	wooteefam.com	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
173.175.45.119	AS11427 Charter Communications Inc	`5.36ms` from Dallas, US
158.222.37.215	AS33339 Nemont	`14.08ms` from Denver, US
52.209.25.151	AS16509 Amazon.com, Inc.	`0.12ms` from Dublin, IE
54.75.249.199	AS16509 Amazon.com, Inc.	`0.17ms` from Dublin, IE
14.227.121.135	AS45899 VNPT Corp	`4.36ms` from Ho Chi Minh City, VN
37.103.201.151	AS1267 WIND TRE S.P.A.	`3.13ms` from Milan, IT
94.162.131.135	AS1267 WIND TRE S.P.A.	`18.07ms` from Milan, IT
167.253.129.103	AS6079 RCN	`0.86ms` from New York City, US
179.173.193.7	AS26599 TELEFÔNICA BRASIL S.A	`2.69ms` from Osasco, BR
104.180.7.71	AS7018 AT&T Enterprises, LLC	`11.15ms` from Redding, US
169.212.139.87	AS4766 Korea Telecom	`7.28ms` from Seoul, KR
221.152.244.135	AS4766 Korea Telecom	`6.66ms` from Seoul, KR
89.106.116.71	AS42248 Vida optics TVV Ltd.	`3.55ms` from Sofia, BG
123.13.114.87	AS4837 CHINA UNICOM China169 Backbone	`7.17ms` from Zhengzhou, CN
47.227.89.199	AS33363 Charter Communications, Inc	`9.01ms` from Chicago, US
108.200.8.231	AS7018 AT&T Enterprises, LLC	`18.35ms` from Chicago, US
209.20.156.7	AS398090 Lambda	`0.51ms` from Draper, US
91.26.227.103	AS3320 Deutsche Telekom AG	`0.71ms` from Hamburg, DE
14.162.3.183	AS45899 VNPT Corp	`1.87ms` from Hanoi, VN
47.63.198.199	AS12430 VODAFONE ESPANA S.A.U.	`10.36ms` from Madrid, ES
77.229.60.71	AS12430 VODAFONE ESPANA S.A.U.	`3.33ms` from Madrid, ES
167.60.201.119	AS6057 Administracion Nacional de Telecomunicaciones	`1.70ms` from Montevideo, UY
106.165.119.7	AS2516 KDDI CORPORATION	`14.86ms` from Osaka, JP
152.117.211.247	AS2527 Sony Network Communications Inc.	`1.68ms` from Osaka, JP
202.6.70.39	AS55376 KCV Communications Co. Ltd.	`11.18ms` from Osaka, JP

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 172.56.186.34

traceroute to 172.56.186.34 (172.56.186.34): 7 hops max, 52 byte packets

4 [AS21928] 100.199.0.93 0.058 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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