172.56.30.0/23

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:        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:        2026-01-08
OfficePhone:    +1-888-662-4662
Mailbox:        ARINtechcontact@t-mobile.com
Source:         ARIN

Overlapping Ranges

BGP prefixes that contain 172.56.30.0/23

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
172.56.30.219	justroots.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
73.248.74.231	AS7922 Comcast Cable Communications, LLC	`11.74ms` from Ashburn, US
197.39.239.231	AS8452 TE-AS	`5.90ms` from Cairo, EG
108.157.79.167	AS16509 Amazon.com, Inc.	`0.07ms` from Lagos, NG
124.169.189.119	AS7545 TPG Telecom Limited	`2.58ms` from Melbourne, AU
208.92.72.199	AS29866 OPTICALTEL	`0.20ms` from Miami, US
73.156.33.39	AS7922 Comcast Cable Communications, LLC	`6.57ms` from Miami, US
2.10.35.119	AS3215 Orange S.A.	`9.43ms` from Paris, FR
189.130.216.71	AS8151 UNINET	`4.35ms` from Santiago de Queretaro, MX
118.72.34.87	AS4837 CHINA UNICOM China169 Backbone	`8.22ms` from Taiyuan, CN
122.214.14.231	AS17506 ARTERIA Networks Corporation	`1.60ms` from Tokyo, JP
137.122.19.23	AS25826 University of Ottawa	`5.75ms` from Toronto, CA
35.168.102.151	AS14618 Amazon.com, Inc.	`0.48ms` from Ashburn, US
190.217.64.135	AS3549 Level 3 Parent, LLC	`0.71ms` from Bogota, CO
173.172.110.151	AS11427 Charter Communications Inc	`15.58ms` from Dallas, US
199.232.111.119	AS54113 Fastly, Inc.	`0.66ms` from London, GB
2.220.181.183	AS5607 Sky UK Limited	`1.54ms` from London, GB
90.66.250.55	AS3215 Orange S.A.	`4.62ms` from Lyon, FR
166.161.155.39	AS6167 Verizon Business	`15.71ms` from San Jose, US
220.134.193.119	AS3462 Data Communication Business Group	`1.41ms` from Taipei, TW
36.110.39.151	AS4847 China Networks Inter-Exchange	`2.51ms` from Tianjin, CN
178.62.239.7	AS14061 DigitalOcean, LLC	`0.22ms` from Amsterdam, NL
45.137.61.103	AS60781 LeaseWeb Netherlands B.V.	`0.26ms` from Amsterdam, NL
147.161.104.199	AS35699 Adamo Telecom Iberia S.A.	`1.23ms` from Barcelona, ES
51.222.163.135	AS16276 OVH SAS	`0.12ms` from Beauharnois, CA
154.179.26.7	AS8452 TE-AS	`4.97ms` from Cairo, EG

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 172.56.31.214

traceroute to 172.56.31.214 (172.56.31.214): 7 hops max, 52 byte packets

4 [AS21928] 100.199.0.93 0.09 ms

5 *

6 *

7 *

Measurement taken from

IPinfo ProbeNet in Tieling, CN

On March 13th 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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