172.56.130.0/23

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 172.56.130.0/23

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
67.1.177.151	AS209 CenturyLink Communications, LLC	`16.45ms` from Albuquerque, US
52.170.31.183	AS8075 Microsoft Corporation	`0.46ms` from Ashburn, US
123.123.179.151	AS4808 China Unicom Beijing Province Network	`3.18ms` from Beijing, CN
123.26.50.167	AS45899 VNPT Corp	`2.45ms` from Da Nang, VN
3.72.250.231	AS16509 Amazon.com, Inc.	`0.46ms` from Frankfurt am Main, DE
87.179.22.103	AS3320 Deutsche Telekom AG	`9.64ms` from Frankfurt am Main, DE
176.237.165.183	AS16135 Turkcell A.S.	`18.83ms` from Istanbul, TR
31.117.51.7	AS2856 British Telecommunications PLC	`6.33ms` from London, GB
90.199.130.87	AS5607 Sky UK Limited	`4.78ms` from London, GB
98.98.253.7	AS21859 Zenlayer Inc	`1.62ms` from Mexico City, MX
174.74.231.87	AS22773 Cox Communications Inc.	`4.95ms` from Phoenix, US
69.9.143.135	AS36012 HUNTER COMMUNICATIONS	`6.90ms` from Portland, US
69.128.70.39	AS4181 TDS TELECOM	`6.54ms` from Atlanta, US
172.71.1.7	AS13335 Cloudflare, Inc.	`0.29ms` from Chicago, US
67.177.238.199	AS7922 Comcast Cable Communications, LLC	`5.66ms` from Denver, US
201.145.122.103	AS8151 UNINET	`1.54ms` from Mexico City, MX
60.152.195.119	AS17676 SoftBank Corp.	`3.38ms` from Osaka, JP
20.106.91.39	AS8075 Microsoft Corporation	`0.44ms` from Phoenix, US
143.54.248.151	AS19200 Universidade Federal do Rio Grande do Sul	`0.79ms` from Porto Alegre, BR
108.180.151.7	AS852 TELUS Communications Inc.	`4.58ms` from Seattle, US
54.64.197.71	AS16509 Amazon.com, Inc.	`0.17ms` from Tokyo, JP
40.117.148.231	AS8075 Microsoft Corporation	`0.44ms` from Ashburn, US
23.96.27.135	AS8075 Microsoft Corporation	`0.44ms` from Ashburn, US
23.41.123.39	AS16625 Akamai Technologies, Inc.	`0.78ms` from Chennai, IN
97.135.223.71	AS6167 Verizon Business	`13.36ms` from Chicago, US

Traceroute

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

traceroute -a -n -q1 -m5 172.56.131.224

traceroute to 172.56.131.224 (172.56.131.224): 5 hops max, 52 byte packets

1 [AS31898] 140.91.236.15 0.061 ms

2 [AS15802] 91.74.125.162 1.585 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Dubai, AE

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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