172.56.6.0/23

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 172.56.6.0/23

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
172.56.7.86	crovvn.li	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
174.77.198.183	AS22773 Cox Communications Inc.	`0.36ms` from Atlanta, US
191.104.112.55	AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC	`3.15ms` from Bogota, CO
186.112.236.103	AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC	`8.07ms` from Bogotá, CO
84.194.205.119	AS6848 Telenet BV	`6.19ms` from Brussels, BE
70.252.127.23	AS7018 AT&T Enterprises, LLC	`1.32ms` from Kansas City, US
176.36.130.135	AS39608 Lanet Network Ltd	`0.51ms` from Kyiv, UA
81.61.41.39	AS6739 Vodafone ONO AS	`4.18ms` from Madrid, ES
73.190.133.71	AS7922 Comcast Cable Communications, LLC	`15.90ms` from Murfreesboro, US
125.150.235.167	AS4766 Korea Telecom	`1.58ms` from Seoul, KR
202.247.30.23	AS2518 BIGLOBE Inc.	`4.70ms` from Tokyo, JP
146.160.91.135	AS9605 NTT DOCOMO, INC.	`18.76ms` from Tokyo, JP
52.54.111.135	AS14618 Amazon.com, Inc.	`0.45ms` from Ashburn, US
35.245.210.87	AS396982 Google LLC	`0.13ms` from Ashburn, US
20.169.245.103	AS8075 Microsoft Corporation	`0.41ms` from Ashburn, US
23.3.78.183	AS4761 INDOSAT Internet Network Provider	`1.34ms` from Jakarta, ID
204.27.239.7	AS33129 City of Garden Grove	`1.97ms` from Los Angeles, US
50.91.109.247	AS33363 Charter Communications, Inc	`11.28ms` from Los Angeles, US
174.91.130.87	AS577 Bell Canada	`3.31ms` from Montreal, CA
132.66.253.71	AS378 IUCC - Israel InterUniversity Computation Center	`0.97ms` from Petaẖ Tiqva, IL
27.214.90.151	AS4837 CHINA UNICOM China169 Backbone	`7.51ms` from Qingdao, CN
52.171.120.119	AS8075 Microsoft Corporation	`0.24ms` from San Antonio, US
84.40.98.55	AS8866 Vivacom Bulgaria EAD	`0.56ms` from Sofia, BG
75.132.198.87	AS20115 Charter Communications LLC	`4.20ms` from St. Louis, US
38.85.187.87	AS398721 OXIO	`5.43ms` from Toronto, CA
94.50.225.23	AS12389 PJSC Rostelecom	`6.48ms` from Yekaterinburg, RU

Traceroute

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

traceroute -a -n -q1 -f4 -m9 172.56.6.160

traceroute to 172.56.6.160 (172.56.6.160): 9 hops max, 52 byte packets

4 [AS63949] 173.255.239.102 1.001 ms

5 [AS20940] 23.203.154.42 0.672 ms

6 [AS21928] 66.94.0.84 4.778 ms

7 *

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Measurement taken from

IPinfo ProbeNet in Morris Plains, 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.

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