128.121.44.0/23

AS3949 · NTT America, Inc.

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Summary

Country	United States
Domain	ntt.com
ASN	AS3949
Parent Range	128.121.0.0/16
Registry	RWHOIS
ID	C052-128-121-44-0.127.0.0.1/32,C052-128-121-44-0

WHOIS Details

No whois details available for this network

Overlapping Ranges

BGP prefixes that contain 128.121.44.0/23

Range	ASN	Company	Num of IPs
128.121.0.0/16	AS2914	NTT America, Inc.	65,536

Nearby Ranges

BGP prefixes that overlap with 128.121.0.0/16

Range	ASN	Company	Num of IPs
128.121.0.0/16	AS2914	NTT America, Inc.	65,536
128.121.128.0/17	AS203020	NTT DATA	32,768
128.121.64.0/18	AS6079	RACKDOG	16,384
128.121.64.0/18	AS7029	RACKDOG	16,384
128.121.0.0/22	AS3949		1,024
128.121.15.0/24	AS204670	Quinstreet Inc	256
128.121.11.0/24	AS204670	NTT Com - Mitsubishi Corporation	256
128.121.32.0/24	AS204670	NTT DATA	256

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

508 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
128.121.44.103	AS3949 NTT America, Inc.	`24.58ms` from Frankfurt am Main, DE
128.121.45.27	AS3949 NTT America, Inc.	`24.58ms` from Frankfurt am Main, DE

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
188.171.45.7	AS12946 R Cable y Telecable Telecomunicaciones, S.A.U.	`4.67ms` from A Coruna, ES
34.132.73.7	AS396982 Google LLC	`0.11ms` from Council Bluffs, US
76.131.43.151	AS7922 Comcast Cable Communications, LLC	`5.51ms` from Denver, US
76.154.14.247	AS7922 Comcast Cable Communications, LLC	`4.69ms` from Denver, US
40.67.176.183	AS8075 Microsoft Corporation	`0.22ms` from Des Moines, US
95.37.212.167	AS12389 PJSC Rostelecom	`6.41ms` from Kazan, RU
35.246.118.167	AS396982 Google LLC	`0.11ms` from London, GB
174.176.136.55	AS7922 Comcast Cable Communications, LLC	`7.22ms` from Miami, US
18.173.67.23	AS16509 Amazon.com, Inc.	`0.21ms` from Milan, IT
122.27.97.135	AS4713 NTT DOCOMO BUSINESS,Inc.	`6.34ms` from Osaka, JP
13.228.229.151	AS16509 Amazon.com, Inc.	`0.12ms` from Singapore, SG
52.62.102.215	AS16509 Amazon.com, Inc.	`0.10ms` from Sydney, AU
154.243.188.151	AS36947 Telecom Algeria	`8.70ms` from Valencia, ES
170.185.15.71	AS11686 Zayo Bandwidth	`12.77ms` from Atlanta, US
97.219.87.183	AS6167 Verizon Business	`11.41ms` from Atlanta, US
162.235.18.231	AS7018 AT&T Enterprises, LLC	`10.45ms` from Atlanta, US
50.57.72.7	AS19994 Rackspace Hosting	`1.27ms` from Chicago, US
91.41.199.215	AS3320 Deutsche Telekom AG	`2.87ms` from Duesseldorf, DE
83.196.3.39	AS3215 Orange S.A.	`9.29ms` from Frankfurt am Main, DE
111.42.44.39	AS132525 HeiLongJiang Mobile Communication Company Limited	`4.11ms` from Harbin, CN
78.168.202.183	AS9121 Turk Telekomunikasyon Anonim Sirketi	`15.11ms` from Istanbul, TR
3.11.8.199	AS16509 Amazon.com, Inc.	`0.56ms` from London, GB
86.142.226.247	AS2856 British Telecommunications PLC	`4.65ms` from London, GB
118.27.249.87	AS131934 ICC Corporation	`3.76ms` from Osaka, JP
121.80.151.119	AS17511 OPTAGE Inc.	`3.10ms` from Osaka, JP

Traceroute

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

traceroute -a -n -q1 -f4 128.121.45.224

traceroute to 128.121.45.224 (128.121.45.224): 64 hops max, 52 byte packets

4 [AS2914] 213.198.52.22 0.234 ms

5 *

6 *

7 *

8 *

9 [AS3949] 128.121.45.224 25.008 ms

Measurement taken from

IPinfo ProbeNet in Frankfurt am Main, DE

On January 9th 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.

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