204.144.140.0/23

AS21777 · Massive Networks

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Summary

Country	United States
Domain	massivenetworks.com
ASN	AS21777
Registry	ARIN
ID	RKCI

WHOIS Details

NetHandle:      NET-204-144-140-0-2
OrgID:          RKCI
Parent:         NET-204-0-0-0-0
NetName:        RKCI
NetRange:       204.144.140.0 - 204.144.141.255
NetType:        allocation
RegDate:        2022-03-24
Updated:        2022-03-24
Source:         ARIN


OrgID:          RKCI
OrgName:        Massive Networks
CanAllocate:    
Street:         382 S. Arthur Ave
Street:         Ste 120
City:           Louisville
State/Prov:     CO
Country:        US
PostalCode:     80027
RegDate:        1996-08-08
Updated:        2022-09-21
OrgAdminHandle: FLAKE22-ARIN
OrgTechHandle:  LEWIN9-ARIN
OrgAbuseHandle: ABUSE7475-ARIN
OrgNOCHandle:   NOC33251-ARIN
Source:         ARIN


POCHandle:      NOC33251-ARIN
IsRole:         Y
LastName:       Network Operations Center
FirstName:      
Street:         382 S. Arthur Ave
Street:         Suite #120
City:           Louisville
State/Prov:     CO
Country:        US
PostalCode:     80027
RegDate:        2021-01-25
Updated:        2025-02-17
OfficePhone:    +1-303-800-1300
Mailbox:        noc@massivenetworks.com
Source:         ARIN


POCHandle:      LEWIN9-ARIN
IsRole:         N
LastName:       Lewinski
FirstName:      Mike
Street:         382 S. Arthur Ave
Street:         Suite 120
City:           Louisville
State/Prov:     CO
Country:        US
PostalCode:     80027
RegDate:        2016-02-16
Updated:        2025-02-17
OfficePhone:    +1-303-629-2860
Mailbox:        mlewinski@massivenetworks.com
Source:         ARIN


POCHandle:      FLAKE22-ARIN
IsRole:         N
LastName:       Flake
FirstName:      Kevin
Street:         382 S. Arthur Ave.
City:           Louisville
State/Prov:     CO
Country:        US
PostalCode:     80027
RegDate:        2022-09-20
Updated:        2025-10-16
OfficePhone:    +1-303-800-1300
Mailbox:        kflake@massivenetworks.com
Source:         ARIN


POCHandle:      ABUSE7475-ARIN
IsRole:         Y
LastName:       Abuse Department
FirstName:      
Street:         382 S. Arthur Ave
Street:         Suite 120
City:           Louisville
State/Prov:     CO
Country:        US
PostalCode:     80027
RegDate:        2019-04-17
Updated:        2025-04-16
OfficePhone:    +1-303-800-1300
Mailbox:        abuse@massivenetworks.com
Source:         ARIN

Nearby Ranges

BGP prefixes that overlap with 204.144.0.0/16

Range	ASN	Company	Num of IPs
204.144.192.0/18	AS393238	ImOn Communications, LLC	16,384
204.144.160.0/20	AS36556	Wave Rural Connect, LLC	4,096
204.144.152.0/21	AS397050	The Butler Rural Electric Cooperative Assn., Inc.	2,048
204.144.136.0/22	AS21757	HTC Communications	1,024
204.144.124.0/22	AS399833	Rocky Ridge Wireless	1,024
204.144.60.0/22	AS11290	Cogeco Connexion inc	1,024
204.144.188.0/22	AS137074	Level 6, Crown 7 Building,	1,024
204.144.120.0/22	AS26272	AM Data Service, Inc.	1,024
204.144.12.0/22	AS46563	Stonehill College	1,024
204.144.148.0/23	AS401500	Karrier One Inc.	512
204.144.176.0/23	AS20283	Arrowhead Electric Cooperative, INC.	512
204.144.186.0/23	AS29852	Honest Networks, LLC	512
204.144.185.0/24	AS53583	Westjet Airlines Limited	256
204.144.104.0/24	AS54885	Idaho Dept of Labor	256
204.144.113.0/24	AS1226	Employment Development Department	256
204.144.178.0/24	AS206455	Lukasz Kalwinek trading as KALWINEK.NET	256
204.144.184.0/24	AS21777	Massive Networks	256
204.144.151.0/24	AS22658	Earthnet, Inc.	256
204.144.76.0/24	AS2939	S.C. Employment Security Comm.	256
204.144.57.0/24	AS32305	COOK GROUP INC	256
204.144.58.0/24	AS36086	Anchor Computer Inc.	256
204.144.97.0/24	AS395001	Maine Department of Labor	256
204.144.106.0/24	AS398323	Softinco Software LLC	256
204.144.180.0/24	AS399726	XtreamInternet	256
204.144.81.0/24	AS40628	Oklahoma Office of Management & Enterprise Services	256
204.144.74.0/24	AS4454	State of Tennessee	256

Hosted domains

There are 16 domain names hosted across 4 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
204.144.141.135	charondevelopment.com	7
204.144.141.137	ballflutes.com	7
204.144.141.142	mtntop.com	1
204.144.141.132	dbw3.net	1

Hosted domains API

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Pingable IPs

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

IP Address	ASN	Details
204.144.140.2	AS21777 Massive Networks	`1.28ms` from Denver, US
204.144.141.169	AS21777 Massive Networks	`0.30ms` from Denver, 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
86.81.62.247	AS1136 KPN B.V.	`1.35ms` from Amsterdam, NL
84.83.115.39	AS1136 KPN B.V.	`2.41ms` from Amsterdam, NL
49.49.1.7	AS45758 Triple T Broadband Public Company Limited	`9.73ms` from Bangkok, TH
111.204.18.183	AS4808 China Unicom Beijing Province Network	`3.79ms` from Beijing, CN
147.142.188.119	AS553 BelWue-Koordination	`3.79ms` from Frankfurt am Main, DE
66.181.222.7	AS398113 Gateway Fiber LLC	`5.55ms` from New York City, US
119.228.16.103	AS17511 OPTAGE Inc.	`1.98ms` from Osaka, JP
72.200.110.199	AS22773 Cox Communications Inc.	`2.54ms` from Phoenix, US
99.137.243.87	AS7018 AT&T Enterprises, LLC	`18.67ms` from San Antonio, US
126.44.87.39	AS17676 SoftBank Corp.	`10.49ms` from Tokyo, JP
24.99.93.55	AS7922 Comcast Cable Communications, LLC	`4.44ms` from Atlanta, US
125.254.144.103	AS23724 IDC, China Telecommunications Corporation	`2.83ms` from Beijing, CN
101.16.30.39	AS4837 CHINA UNICOM China169 Backbone	`9.95ms` from Beijing, CN
44.253.144.135	AS16509 Amazon.com, Inc.	`0.14ms` from Boardman, US
71.232.71.247	AS7922 Comcast Cable Communications, LLC	`6.27ms` from Boston, US
104.130.214.183	AS19994 Rackspace Hosting	`1.26ms` from Chicago, US
3.121.170.87	AS16509 Amazon.com, Inc.	`0.19ms` from Frankfurt am Main, DE
4.223.162.247	AS8075 Microsoft Corporation	`0.20ms` from Gaevle, SE
86.190.49.151	AS2856 British Telecommunications PLC	`4.07ms` from London, GB
23.200.202.231	AS16625 Akamai Technologies, Inc.	`0.89ms` from New York City, US
34.91.140.151	AS396982 Google LLC	`0.13ms` from Oudeschip, NL
27.208.229.167	AS4837 CHINA UNICOM China169 Backbone	`6.10ms` from Qingdao, CN
121.154.154.7	AS4766 Korea Telecom	`4.93ms` from Seoul, KR
1.165.95.135	AS3462 Data Communication Business Group	`1.30ms` from Taichung, TW
219.141.133.183	AS4847 China Networks Inter-Exchange	`2.27ms` from Tianjin, CN

Traceroute

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

traceroute -a -n -q1 -f4 204.144.141.225

traceroute to 204.144.141.225 (204.144.141.225): 64 hops max, 52 byte packets

4 [AS6939] 184.105.54.122 0.185 ms

5 [AS21777] 204.144.141.225 0.347 ms

Measurement taken from

IPinfo ProbeNet in Denver, US

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.

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