1. All IP Ranges
  2. 172.0.0.0/8
  3. 172.56.0.0/16
  4. AS21928  | 172.56.160.0/21

172.56.160.0/21

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 172.56.160.0/21

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 7 domain names hosted across 7 IP addresses 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
175.35.99.245 AS4804 Microplex PTY LTD 2.78ms from Adelaide, AU
20.54.190.245 AS8075 Microsoft Corporation 0.28ms from Amsterdam, NL
63.147.14.165 AS209 CenturyLink Communications, LLC 1.02ms from Atlanta, US
186.194.62.117 AS272851 GIGA FIBRA SAS 0.54ms from Bogotá, CO
203.115.2.149 AS9329 Sri Lanka Telecom Internet 1.24ms from Colombo, LK
180.230.78.21 AS17858 LG POWERCOMM 1.36ms from Incheon, KR
2.135.1.101 AS9198 JSC Kazakhtelecom 7.18ms from Karagandy, KZ
41.216.119.53 AS37006 Liquid Telecommunication Rwanda Limited 0.65ms from Kigali, RW
20.219.177.133 AS8075 Microsoft Corporation 0.16ms from Lohogaon, IN
23.40.174.197 AS16625 Akamai Technologies, Inc. 0.14ms from Los Angeles, US
46.173.48.197 AS49120 Gorset Ltd. 3.33ms from Moscow, RU
212.192.232.53 AS62261 Join-stock company Internet ExchangeMSK-IX 0.32ms from Novosibirsk, RU
52.91.90.101 AS14618 Amazon.com, Inc. 0.48ms from Reston, US
98.6.163.37 AS11427 Charter Communications Inc 0.63ms from Schertz, US
121.166.117.85 AS4766 Korea Telecom 1.45ms from Seoul, KR
222.125.227.85 AS17962 ShenZhen Topway Video Communication Co. Ltd 4.48ms from Shenzhen, CN
113.61.152.133 AS17809 VEE TIME CORP. 3.05ms from Taipei, TW
114.34.83.53 AS3462 Data Communication Business Group 1.10ms from Taipei, TW
32.105.195.37 AS2686 AT&T Enterprises, LLC 6.18ms from Zuerich, CH
147.0.44.133 AS10796 Charter Communications Inc 2.33ms from Cleveland, US
52.142.81.69 AS8075 Microsoft Corporation 0.20ms from Dublin, IE
223.120.190.21 AS58807 China Mobile International Limited 0.74ms from Frankfurt am Main, DE
60.191.202.101 AS136190 JINHUA, ZHEJIANG Province, P.R.China. 3.88ms from Hangzhou, CN
83.170.203.133 AS15895 "Kyivstar" PJSC 0.57ms from Kyiv, UA
179.58.192.245 AS28024 Nuevatel PCS de Bolivia S.A. 16.10ms from La Paz, BO

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 172.56.165.106
traceroute to 172.56.165.106 (172.56.165.106): 7 hops max, 52 byte packets
4 [AS21928] 100.199.0.93 0.082 ms
5 *
6 *
7 *
Measurement taken from IPinfo ProbeNet in Tieling, CN
On

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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