144.121.32.0/21

AS46887 · Crown Castle Fiber LLC

Need more data or want to access it via API or data downloads? Sign up to get free access

Summary

Country	United States
Domain	netblazr.com
ASN	AS46887
Parent Range	144.121.0.0/16
Registry	ARIN
ID	NET-144-121-33-0-24

WHOIS Details

NetHandle:      NET-144-121-33-0-1
OrgID:          C06310673
Parent:         NET-144-121-0-0-1
NetName:        NET-144-121-33-0-24
NetRange:       144.121.33.0 - 144.121.33.255
NetType:        reassignment
Comment:        AS46887 NOC 24x7 +1 845 458 7799
RegDate:        2017-01-25
Updated:        2017-01-25
Source:         ARIN


OrgID:          C06310673
OrgName:        netBlazr
CanAllocate:    
Street:         200 Clarendon
City:           Boston
State/Prov:     MA
Country:        US
PostalCode:     02116
RegDate:        2017-01-25
Updated:        2017-01-25
Source:         ARIN

Overlapping Ranges

BGP prefixes that contain 144.121.32.0/21

Range	ASN	Company	Num of IPs
144.121.0.0/16	AS46887	Crown Castle Fiber LLC	65,536

Nearby Ranges

BGP prefixes that overlap with 144.121.0.0/16

Range	ASN	Company	Num of IPs
144.121.0.0/16	AS46887	Crown Castle Fiber LLC	65,536
144.121.180.0/24	AS19600	Nationwide Children's Hospital	256
144.121.113.0/24	AS21751	Owl Creek Asset Management, L.P.	256
144.121.102.0/24	AS21821	Montefiore Medicine Academic Health System, Inc.	256
144.121.104.0/24	AS21821	Montefiore Medicine Academic Health System, Inc.	256
144.121.120.0/24	AS23359	Netrex, LLC	256
144.121.61.0/24	AS27015	Fresenius Medical Care NA	256
144.121.141.0/24	AS29905	Bain Capital, LLC	256
144.121.148.0/24	AS30183	Boardwalk 1000 LLC d/b/a Hard Rock Hotel & Casino Atlantic City	256
144.121.224.0/24	AS396894	Cubic Transportation System	256
144.121.102.0/24	AS46887	Montefiore Medicine Academic Health System, Inc.	256
144.121.104.0/24	AS46887	Montefiore Medicine Academic Health System, Inc.	256
144.121.113.0/24	AS46887	Owl Creek Asset Management, L.P.	256
144.121.116.0/24	AS46887	YORK CAPITAL	256
144.121.120.0/24	AS46887	Netrex, LLC	256
144.121.148.0/24	AS46887	Boardwalk 1000 LLC d/b/a Hard Rock Hotel & Casino Atlantic City	256
144.121.154.0/24	AS46887	National Wifi	256
144.121.207.0/24	AS46887	SUNY Orange	256
144.121.217.0/24	AS46887	Kepos Capital, LP	256
144.121.224.0/24	AS46887	Cubic Transportation System	256
144.121.239.0/24	AS46887	Albany City School District	256
144.121.30.0/24	AS46887	HAI Group	256
144.121.4.0/24	AS46887	GTECH	256
144.121.41.0/24	AS46887	Health New England	256
144.121.49.0/24	AS46887	KPMG LLP	256
144.121.73.0/24	AS46887	MASS Communications	256
144.121.73.0/24	AS46887	MASS Communications	256
144.121.86.0/24	AS46887	Simons Foundation	256
144.121.217.0/24	AS53592	Kepos Capital, LP	256
144.121.4.0/24	AS54573	GTECH	256
144.121.30.0/24	AS62653	HAI Group	256
144.121.89.0/24	AS62678	Horace Mann School	256
144.121.95.0/24	AS63329	Marcum LLP	256
144.121.43.0/24	AS64293	Mobile Heartbeat	256
144.121.73.0/24	AS7029	MASS Communications	256
144.121.136.0/24	AS19111	The Nature's Bounty Co.	256
144.121.73.0/24	AS7029	MASS Communications	256

Hosted domains

There are 3 domain names hosted across 3 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
144.121.39.3	kubotek3d.com	1
144.121.36.72	di-mgmt.com	1
144.121.36.17	proverdelabs.net	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

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

IP Address	ASN	Details
144.121.34.230	AS46887 Crown Castle Fiber LLC	`0.46ms` from Boston, US
144.121.32.153	AS46887 Crown Castle Fiber LLC	`0.45ms` from Boston, US
144.121.35.241	AS46887 Crown Castle Fiber LLC	`0.41ms` from Miami, US
144.121.38.85	AS46887 Crown Castle Fiber LLC	`0.45ms` from Boston, US
144.121.37.41	AS46887 Crown Castle Fiber LLC	`1.24ms` from Boston, US
144.121.39.233	AS46887 Crown Castle Fiber LLC	`0.44ms` from Boston, US
144.121.36.146	AS46887 Crown Castle Fiber LLC	`0.31ms` from Boston, US

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
97.66.85.85	AS7029 Windstream Communications LLC	`7.99ms` from Atlanta, US
92.249.253.69	AS20845 DIGI Tavkozlesi es Szolgaltato Kft.	`1.27ms` from Budapest, HU
122.141.180.165	AS4837 CHINA UNICOM China169 Backbone	`7.31ms` from Changchun, CN
110.7.135.101	AS4837 CHINA UNICOM China169 Backbone	`10.47ms` from Changchun, CN
75.185.124.69	AS10796 Charter Communications Inc	`17.57ms` from Columbus, US
185.110.51.197	AS47544 IQ PL Sp. z o.o.	`0.47ms` from Gdansk, PL
223.32.3.85	AS9644 SK Telecom	`2.42ms` from Incheon, KR
39.74.101.229	AS4837 CHINA UNICOM China169 Backbone	`7.30ms` from Qingdao, CN
54.175.34.5	AS14618 Amazon.com, Inc.	`0.23ms` from Reston, US
136.38.99.85	AS16591 Google Fiber Inc.	`0.84ms` from Salt Lake City, US
172.244.254.213	AS7922 Comcast Cable Communications, LLC	`16.84ms` from Secaucus, US
49.235.88.101	AS45090 Shenzhen Tencent Computer Systems Company Limited	`1.59ms` from Shanghai, CN
126.89.176.197	AS17676 SoftBank Corp.	`2.87ms` from Tokyo, JP
177.35.63.53	AS28573 Claro NXT Telecomunicacoes Ltda	`8.65ms` from Brasilia, BR
35.195.254.69	AS396982 Google LLC	`0.14ms` from Brussels, BE
162.196.129.101	AS7018 AT&T Enterprises, LLC	`5.22ms` from Chicago, US
172.64.202.5	AS395747 Cloudflare, Inc.	`5.54ms` from Dallas, US
18.196.8.181	AS16509 Amazon.com, Inc.	`0.14ms` from Frankfurt am Main, DE
203.241.188.21	AS9774 Dongseo University	`7.42ms` from Incheon, KR
104.248.14.197	AS14061 DigitalOcean, LLC	`0.29ms` from New York City, US
35.171.187.85	AS14618 Amazon.com, Inc.	`0.57ms` from Reston, US
3.228.208.69	AS14618 Amazon.com, Inc.	`0.20ms` from Reston, US
178.67.46.37	AS12389 PJSC Rostelecom	`1.65ms` from Saint Petersburg, RU
185.18.127.53	AS51178 JSC Avantel	`0.86ms` from Saint Petersburg, RU
154.88.190.101	AS271956 GRUPO ARMARFA SRL	`4.71ms` from Santo Domingo, DO

Traceroute

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

traceroute -a -n -q1 -f4 144.121.39.173

traceroute to 144.121.39.173 (144.121.39.173): 64 hops max, 52 byte packets

4 [AS174] 154.54.86.137 136.33 ms

5 *

6 *

7 [AS3356] 166.90.184.30 205.689 ms

8 [AS46887] 144.121.35.37 206.04 ms

9 [AS46887] 144.121.39.173 209.791 ms

Measurement taken from

IPinfo ProbeNet in Seoul, KR

On February 7th 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.

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales