172.56.98.0/23

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 172.56.98.0/23

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 are no domains currently hosted on this ASN.

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
69.255.26.39	AS7922 Comcast Cable Communications, LLC	`5.25ms` from Ashburn, US
44.231.195.39	AS16509 Amazon.com, Inc.	`0.22ms` from Boardman, US
109.147.23.55	AS2856 British Telecommunications PLC	`5.55ms` from Erith, GB
148.51.218.167	AS12025 Iron Mountain Data Center	`0.48ms` from Frankfurt am Main, DE
4.223.128.119	AS8075 Microsoft Corporation	`0.14ms` from Gaevle, SE
153.92.11.103	AS47583 Hostinger International Limited	`1.28ms` from Jakarta, ID
193.37.34.55	AS207027 LLC Eximius	`0.60ms` from Moscow, RU
182.156.36.135	AS45820 Tata Teleservices ISP AS	`9.63ms` from Mumbai, IN
62.156.59.167	AS3320 Deutsche Telekom AG	`5.70ms` from Nuernberg, DE
73.230.180.151	AS7922 Comcast Cable Communications, LLC	`19.53ms` from Reston, US
59.93.100.87	AS9829 National Internet Backbone	`18.28ms` from Saint Thomas Mount, IN
122.215.139.103	AS17506 ARTERIA Networks Corporation	`1.90ms` from Tokyo, JP
119.10.243.7	AS2497 Internet Initiative Japan Inc.	`13.05ms` from Tokyo, JP
47.135.194.103	AS20115 Charter Communications LLC	`9.19ms` from Atlanta, US
73.47.36.103	AS7922 Comcast Cable Communications, LLC	`7.21ms` from Boston, US
27.42.191.39	AS17816 China Unicom IP network China169 Guangdong province	`5.07ms` from Guangzhou, CN
183.33.129.39	AS4134 CHINANET-BACKBONE	`6.57ms` from Guangzhou, CN
66.43.46.199	AS19170 Meramec Interactive Services Network	`8.19ms` from Kansas City, US
109.157.2.71	AS2856 British Telecommunications PLC	`5.57ms` from London, GB
76.91.250.87	AS20001 Charter Communications Inc	`5.35ms` from Los Angeles, US
162.93.126.183	AS6949 Charles Schwab & Co., Inc.	`10.35ms` from Los Angeles, US
34.110.203.7	AS396982 Google LLC	`0.07ms` from Melbourne, AU
46.52.220.151	AS12772 Enforta Autonomous System	`19.36ms` from Moscow, RU
198.143.22.231	AS10753 Level 3 Parent, LLC	`1.99ms` from New York City, US
183.142.232.247	AS4134 CHINANET-BACKBONE	`8.65ms` from Ningbo, CN

Traceroute

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

traceroute -a -n -q1 -m6 172.56.99.5

traceroute to 172.56.99.5 (172.56.99.5): 6 hops max, 52 byte packets

1 [AS31898] 140.204.222.122 0.242 ms

2 [AS21928] 66.94.0.89 0.675 ms

3 [AS21928] 66.94.0.88 0.752 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Ashburn, US

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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