100.128.0.0/9

AS21928 · T-Mobile USA, Inc.

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Summary

Country	United States
Domain	t-mobile.com
ASN	AS21928
Registry	ARIN
ID	CORE2

WHOIS Details

NetHandle:      NET-100-128-0-0-1
OrgID:          TMOBI
Parent:         NET-100-0-0-0-0
NetName:        CORE2
NetRange:       100.128.0.0 - 100.255.255.255
NetType:        allocation
RegDate:        2012-02-27
Updated:        2012-05-24
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:        2025-01-09
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

Nearby Ranges

BGP prefixes that overlap with 100.0.0.0/8

Range	ASN	Company	Num of IPs
100.48.0.0/12	AS14618	Amazon Data Services Northern Virginia	1,048,576
100.24.0.0/13	AS14618	Amazon Data Services Northern Virginia	524,288
100.20.0.0/14	AS16509	Amazon.com, Inc.	262,144
100.44.0.0/14	AS14654	AT&T Enterprises, LLC	262,144
100.43.192.0/18	AS14265	TPx Communications	16,384
100.43.64.0/19	AS208398	Edge Technology Plus d.o.o. Beograd	8,192
100.43.96.0/19	AS22995	Xplore Inc.	8,192
100.43.32.0/19	AS53809	Texas Tech University Health Sciences Center at El Paso	8,192
100.42.240.0/20	AS11260	EastLink	4,096
100.42.160.0/20	AS13692	Douglas FastNet	4,096
100.42.64.0/20	AS16509	Amazon.com, Inc.	4,096
100.42.32.0/20	AS17004	Kentucky Wimax	4,096
100.42.208.0/20	AS18450	WebNX, Inc.	4,096
100.42.144.0/20	AS20030	Artelco	4,096
100.42.128.0/20	AS26732	Wagner College	4,096
100.42.0.0/20	AS36426	IsoTropic Networks, Inc.	4,096
100.42.16.0/20	AS46841	Fork Networking, LLC	4,096
100.42.224.0/20	AS54288	SolidTools Technology, Inc.	4,096
100.42.184.0/21	AS51167	Contabo GmbH	2,048
100.42.176.0/21	AS51167	Contabo GmbH	2,048
100.43.22.0/23	AS174	APOG-HOWARD	512
100.43.20.0/23	AS395597	Apogee-Furman	512
100.43.24.0/23	AS40082	APOG-CofC	512
100.43.28.0/23	AS395597	APOG-GSU	512
100.43.27.0/24	AS395597	APOG-ATL-COLO	256
100.43.30.0/24	AS395597	APOG-GSU	256
100.43.3.0/24	AS395597	APOG-MOOREHOUSEC-24	256
100.43.5.0/24	AS395597	BOLD-CACC	256
100.43.13.0/24	AS400614	University of the Ozarks	256
100.43.2.0/24	AS40082	APOG-CofC	256
100.42.89.0/24	AS62643	The Community Agency	256
100.43.0.0/24	AS22773	BOLD-UniversityWestFlorida	256
100.42.26.0/24	AS17676	SoftBank Corp	256
100.42.17.0/24	AS26241	Castle VPN	256
100.42.193.0/24	AS32524	M9 Systems	256
100.42.27.0/24	AS54098	Fork Networking	256
100.43.14.0/24	AS3356	Lock Haven University	256
100.42.92.0/24	AS62643	The Community Agency	256
100.43.31.0/24	AS395461	Apogee Dev Lab	256
100.43.12.0/24	AS395597	Apogee - Morehouse College	256
100.43.26.0/24	AS395597	APOG-GSU	256

Hosted domains

There are 277 domain names hosted across 55 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
100.200.30.42	eventbasedinnovation.com	109
100.200.30.41	limitmfs.com	82
100.150.100.7	supericehockey.pro	16
100.172.94.1	hotelaveinn.com	10
100.247.208.97	colegioasaf.com	3
100.204.208.97	oldhamcountyday.com	3
100.204.28.97	napabouncebash.com	3
100.200.30.40	cynk.finance	3
100.173.196.1	fs-yasha.com	2
100.240.208.97	mg-insulation.com	2
100.200.100.200	kazanmakistermisin.net	2
100.244.208.97	xxplosivecandy.com	2
100.244.137.163	gigatoolstore.in	1
100.200.0.0	jacegu.work	1
100.231.100.171	landsdoctor.com	1
100.163.8.190	floenzfactory.de	1
100.224.208.97	thestaingang.com	1
100.170.132.100	forexgate.in	1
100.218.193.229	doalias.site	1
100.200.158.151	hgb.com.cn	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
156.239.200.217	AS200373 3xK Tech GmbH	`0.19ms` from Ashburn, US
20.242.180.105	AS8075 Microsoft Corporation	`0.41ms` from Ashburn, US
203.170.250.249	AS4750 CS LOXINFO PUBLIC COMPANY LIMITED	`0.64ms` from Bangkok, TH
108.212.184.153	AS7018 AT&T Enterprises, LLC	`5.72ms` from Chicago, US
177.92.14.89	AS14868 Ligga Telecomunicações S.A.	`0.24ms` from Curitiba, BR
115.74.2.201	AS7552 Viettel Group	`2.48ms` from Ho Chi Minh City, VN
180.253.41.233	AS7713 PT Telekomunikasi Indonesia	`10.51ms` from Jakarta, ID
221.176.238.217	AS24445 Henan Mobile Communications Co.,Ltd	`9.57ms` from Jinan, CN
213.120.73.201	AS2856 British Telecommunications PLC	`10.41ms` from London, GB
195.76.87.89	AS3352 TELEFONICA DE ESPANA S.A.U.	`1.13ms` from Madrid, ES
98.0.129.25	AS12271 Charter Communications Inc	`1.67ms` from New York City, US
2.60.53.57	AS12389 PJSC Rostelecom	`8.69ms` from Novosibirsk, RU
73.158.34.57	AS7922 Comcast Cable Communications, LLC	`5.41ms` from San Jose, US
198.200.250.249	AS29802 HIVELOCITY, Inc.	`0.31ms` from Tampa, US
84.110.137.41	AS8551 Bezeq International Ltd.	`0.55ms` from Tel Aviv, IL
210.224.96.217	AS2516 KDDI CORPORATION	`8.40ms` from Tokyo, JP
77.117.65.233	AS25255 ==> TELE2 AUSTRIA <==	`9.96ms` from Vienna, AT
81.223.4.169	AS8412 T-Mobile Austria GmbH	`3.58ms` from Vienna, AT
95.155.25.217	AS8585 Crnogorski Telekom a.d.Podgorica	`12.41ms` from Zagreb, HR
213.34.175.185	AS33915 Vodafone Libertel B.V.	`3.17ms` from Amsterdam, NL
73.128.253.73	AS7922 Comcast Cable Communications, LLC	`5.78ms` from Ashburn, US
72.107.110.153	AS6167 Verizon Business	`15.72ms` from Chicago, US
95.201.7.169	AS3301 Telia Company AB	`19.79ms` from Copenhagen, DK
79.125.109.249	AS16509 Amazon.com, Inc.	`0.17ms` from Dublin, IE
156.67.170.89	AS60294 Deutsche Glasfaser Wholesale GmbH	`0.99ms` from Duesseldorf, DE

Traceroute

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

traceroute -a -n -q1 -f2 -m5 100.138.114.213

traceroute to 100.138.114.213 (100.138.114.213): 5 hops max, 52 byte packets

2 [AS54290] 193.188.24.129 3.37 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Amsterdam, NL

On December 14th 2025

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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