1. All IP Ranges
  2. 204.0.0.0/8
  3. 204.237.0.0/16
  4. AS20001  | 204.237.204.0/23

204.237.204.0/23

AS20001  ·  Charter Communications Inc

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Summary

Country United States
Domain ipnetzone.com
ASN AS20001
Parent Range 204.237.128.0/17
Registry ARIN
ID GTT-CUSTOMER

WHOIS Details

NetHandle:      NET-204-237-204-0-1
OrgID:          IPNET-1
Parent:         NET-204-237-128-0-1
NetName:        GTT-CUSTOMER
NetRange:       204.237.204.0 - 204.237.205.255
NetType:        reallocation
RegDate:        2026-02-25
Updated:        2026-02-25
Source:         ARIN


OrgID:          IPNET-1
OrgName:        IPNetZone
CanAllocate:    
Street:         7900 Tysons One Place
City:           McLean
State/Prov:     VA
Country:        US
PostalCode:     22102
Comment:        http://www.ipnetzone.com
RegDate:        2009-02-02
Updated:        2025-08-14
ReferralServer: rwhois://rwhois.ipnetzone.com:4321
OrgAdminHandle: AS3251-ARIN
OrgTechHandle:  AS3251-ARIN
OrgTechHandle:  GIT5-ARIN
OrgAbuseHandle: ABUSE2254-ARIN
OrgAbuseHandle: GAD46-ARIN
OrgNOCHandle:   GNOC16-ARIN
OrgNOCHandle:   NOC11073-ARIN
Source:         ARIN


POCHandle:      GNOC16-ARIN
IsRole:         Y
LastName:       GTT Network Operations Center
FirstName:      
Street:         4201 Wilson Blvd.
Street:         Suite 504 North Tower
City:           Arlington
State/Prov:     VA
Country:        US
PostalCode:     22203
RegDate:        2014-04-16
Updated:        2025-07-09
OfficePhone:    +1-703-442-5500
Mailbox:        noc@gtt.net
Source:         ARIN


POCHandle:      AS3251-ARIN
IsRole:         Y
LastName:       AS3257 Netguard
FirstName:      
Street:         Frankfurter Strasse 227
City:           Neu-Isenburg
State/Prov:     
Country:        DE
PostalCode:     63263
RegDate:        2009-07-03
Updated:        2026-01-28
OfficePhone:    +49 69 48007422
Mailbox:        netguard@gtt.net
Source:         ARIN


POCHandle:      GIT5-ARIN
IsRole:         Y
LastName:       GTT IPAM Team
FirstName:      
Street:         4201 Wilson Blvd.
Street:         Suite 504 North Tower
City:           Arlington
State/Prov:     VA
Country:        US
PostalCode:     22203
RegDate:        2025-02-17
Updated:        2025-07-09
OfficePhone:    +1-703-442-5500
Mailbox:        netguard@gtt.net
Source:         ARIN


POCHandle:      NOC11073-ARIN
IsRole:         Y
LastName:       Network Operations Center
FirstName:      
Street:         38-31 Crescent Street
City:           Long Island City
State/Prov:     NY
Country:        US
PostalCode:     11101
RegDate:        2009-07-15
Updated:        2013-11-18
OfficePhone:    +1-646-254-6800
Mailbox:        netops@ipnetzone.com
Source:         ARIN


POCHandle:      ABUSE2254-ARIN
IsRole:         Y
LastName:       Abuse Handle
FirstName:      
Street:         1270 Broadway
Street:         Suite 708
City:           New York
State/Prov:     NY
Country:        US
PostalCode:     10001
RegDate:        2009-04-13
Updated:        2014-01-30
OfficePhone:    +1-646-254-6800
Mailbox:        ipabuse@unsi.net
Source:         ARIN


POCHandle:      GAD46-ARIN
IsRole:         Y
LastName:       GTT Abuse Department
FirstName:      
Street:         4201 Wilson Blvd.
Street:         Suite 504 North Tower
City:           Arlington
State/Prov:     VA
Country:        US
PostalCode:     22203
RegDate:        2014-04-16
Updated:        2025-07-09
OfficePhone:    +1-703-442-5500
FaxPhone:       +1-703-442-5501
Mailbox:        abuse@gtt.net
Source:         ARIN

Overlapping Ranges

BGP prefixes that contain 204.237.204.0/23

Range ASN Company Num of IPs
204.237.128.0/17 AS3257 PacketExchange, Inc 32,768

Nearby Ranges

BGP prefixes that overlap with 204.237.0.0/16

Range ASN Company Num of IPs
204.237.128.0/17 AS3257 PacketExchange, Inc 32,768
204.237.0.0/17 AS22995 Xplore Inc. 32,768
204.237.144.0/22 AS2914 Private Customer 1,024
204.237.232.0/22 AS2914 Private Customer 1,024
204.237.152.0/22 AS2914 Private Customer 1,024
204.237.148.0/22 AS2914 Private Customer 1,024
204.237.212.0/22 AS2914 Private Customer 1,024
204.237.156.0/22 AS2914 Private Customer 1,024
204.237.216.0/22 AS3257 Satcom Global 1,024
204.237.240.0/22 AS2914 Private Customer 1,024
204.237.136.0/22 AS2914 Private Customer 1,024
204.237.186.0/23 AS20940 Akamai Technologies, Inc. 512
204.237.254.0/23 AS20001 IPNetZone 512
204.237.172.0/23 AS20001 IPNetZone 512
204.237.128.0/23 AS20001 IPNetZone 512
204.237.246.0/23 AS20001 IPNetZone 512
204.237.192.0/23 AS20001 IPNetZone 512
204.237.180.0/23 AS20001 IPNetZone 512
204.237.208.0/23 AS20001 IPNetZone 512
204.237.190.0/23 AS20001 IPNetZone 512
204.237.140.0/23 AS20001 IPNetZone 512
204.237.248.0/23 AS17035 NBC Universal 512
204.237.244.0/23 AS32596 Camber Corporation 512
204.237.253.0/24 AS205615 SSC Technologies 256
204.237.162.0/24 AS63099 MADEALA TELECOM TECHNOLOGY INC 256
204.237.251.0/24 AS395369 HPS Investment Partners 256
204.237.132.0/24 AS396229 BPG 256
204.237.133.0/24 AS62713 Pubmatic 256
204.237.134.0/24 AS63099 MADEALA TELECOM TECHNOLOGY INC 256
204.237.178.0/24 AS63099 MADEALA TELECOM TECHNOLOGY INC 256
204.237.183.0/24 AS63099 MADEALA TELECOM TECHNOLOGY INC 256
204.237.177.0/24 AS63099 MADEALA TELECOM TECHNOLOGY INC 256
204.237.231.0/24 AS63099 MADEALA TELECOM TECHNOLOGY INC 256
204.237.252.0/24 AS63099 MADEALA TELECOM TECHNOLOGY INC 256
204.237.224.0/24 AS63099 MADEALA TELECOM TECHNOLOGY INC 256
204.237.203.0/24 AS63099 MADEALA TELECOM TECHNOLOGY INC 256
204.237.238.0/24 AS63099 MADEALA TELECOM TECHNOLOGY INC 256
204.237.236.0/24 AS63099 MADEALA TELECOM TECHNOLOGY INC 256
204.237.174.0/24 AS63099 MADEALA TELECOM TECHNOLOGY INC 256
204.237.250.0/24 AS63099 MADEALA TELECOM TECHNOLOGY INC 256
204.237.188.0/24 AS20940 Akamai Technologies, Inc. 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
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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
78.82.232.151 AS8434 Telenor Sverige AB 1.56ms from Copenhagen, DK
4.208.62.119 AS8075 Microsoft Corporation 0.15ms from Dublin, IE
112.156.95.215 AS17858 LG POWERCOMM 1.91ms from Incheon, KR
116.121.75.231 AS9318 SK Broadband Co Ltd 1.86ms from Incheon, KR
176.37.83.247 AS39608 Lanet Network Ltd 0.52ms from Kyiv, UA
31.23.20.199 AS12389 PJSC Rostelecom 16.38ms from Moscow, RU
153.151.181.23 AS4713 NTT DOCOMO BUSINESS,Inc. 16.24ms from Osaka, JP
163.172.31.7 AS12876 Scaleway SAS 0.54ms from Paris, FR
179.221.121.247 AS28573 Claro NXT Telecomunicacoes Ltda 19.96ms from Sao Paulo, BR
98.237.184.39 AS7922 Comcast Cable Communications, LLC 2.10ms from Seattle, US
49.142.143.39 AS9319 HCN CHUNGBUK CABLE TV SYSTEMS 3.08ms from Seoul, KR
120.76.194.23 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 1.52ms from Shenzhen, CN
154.47.19.23 AS212238 Datacamp Limited 0.27ms from Vienna, AT
74.7.53.39 AS8075 Microsoft Corporation 2.32ms from Boydton, US
91.176.177.39 AS5432 Proximus NV 1.30ms from Brussels, BE
78.96.203.71 AS12302 Vodafone Romania S.A. 7.01ms from Bucharest, RO
137.238.156.247 AS26462 The State University of New York College at Geneseo 5.70ms from Buffalo, US
136.25.220.247 AS19165 Webpass Inc. 5.08ms from Dallas, US
37.24.103.119 AS3209 Vodafone GmbH 10.79ms from Frankfurt am Main, DE
123.129.174.87 AS4837 CHINA UNICOM China169 Backbone 3.67ms from Qingdao, CN
180.28.126.199 AS4713 NTT DOCOMO BUSINESS,Inc. 9.45ms from Tokyo, JP
212.236.78.87 AS8245 Video-Broadcast GmbH 12.07ms from Vienna, AT
195.134.107.7 AS8643 NATIONAL AND KAPODISTRIAN UNIVERSITY OF ATHENS 2.11ms from Athens, GR
117.205.28.23 AS9829 National Internet Backbone 13.88ms from Bengaluru, IN
201.176.240.151 AS22927 Telefonica de Argentina 2.22ms from Buenos Aires, AR

Traceroute

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

$
traceroute -a -n -q1 -f2 -m15 204.237.205.62
traceroute to 204.237.205.62 (204.237.205.62): 15 hops max, 52 byte packets
2 [AS3257] 92.60.249.225 0.262 ms
3 [AS3257] 89.149.128.174 139.545 ms
4 *
5 *
6 *
7 [AS20115] 96.34.62.151 147.355 ms
8 [AS20001] 72.129.2.84 149.233 ms
9 [AS20001] 72.129.25.15 147.469 ms
10 [AS20001] 72.129.5.181 148.874 ms
11 [AS20001] 76.58.25.229 148.091 ms
12 [AS20001] 76.80.211.250 148.467 ms
13 *
14 *
15 *
Measurement taken from IPinfo ProbeNet in Frankfurt am Main, DE
On

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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