1. All IP Ranges
  2. 204.0.0.0/8
  3. 204.237.0.0/16
  4. AS20001  | 204.237.208.0/23

204.237.208.0/23

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-204-237-208-0-1
OrgID:          IPNET-1
Parent:         NET-204-237-128-0-1
NetName:        GTT-CUSTOMER
NetRange:       204.237.208.0 - 204.237.209.255
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:      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


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:      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:      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:      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:      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

Overlapping Ranges

BGP prefixes that contain 204.237.208.0/23

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
204.237.0.0/17 AS22995 Xplore Inc. 32,768
204.237.128.0/17 AS3257 PacketExchange, Inc 32,768
204.237.232.0/22 AS2914 Private Customer 1,024
204.237.144.0/22 AS2914 Private Customer 1,024
204.237.212.0/22 AS2914 Private Customer 1,024
204.237.136.0/22 AS2914 Private Customer 1,024
204.237.156.0/22 AS2914 Private Customer 1,024
204.237.240.0/22 AS2914 Private Customer 1,024
204.237.148.0/22 AS2914 Private Customer 1,024
204.237.152.0/22 AS2914 Private Customer 1,024
204.237.216.0/22 AS3257 Satcom Global 1,024
204.237.186.0/23 AS20940 Akamai Technologies, Inc. 512
204.237.248.0/23 AS17035 NBC Universal 512
204.237.190.0/23 AS20001 IPNetZone 512
204.237.172.0/23 AS20001 IPNetZone 512
204.237.246.0/23 AS20001 IPNetZone 512
204.237.254.0/23 AS20001 IPNetZone 512
204.237.128.0/23 AS20001 IPNetZone 512
204.237.140.0/23 AS20001 IPNetZone 512
204.237.192.0/23 AS20001 IPNetZone 512
204.237.204.0/23 AS20001 IPNetZone 512
204.237.180.0/23 AS20001 IPNetZone 512
204.237.244.0/23 AS32596 Camber Corporation 512
204.237.253.0/24 AS205615 SSC Technologies 256
204.237.177.0/24 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
204.237.178.0/24 AS63099 MADEALA TELECOM TECHNOLOGY INC 256
204.237.238.0/24 AS63099 MADEALA TELECOM TECHNOLOGY INC 256
204.237.203.0/24 AS63099 MADEALA TELECOM TECHNOLOGY INC 256
204.237.236.0/24 AS63099 MADEALA TELECOM TECHNOLOGY INC 256
204.237.252.0/24 AS63099 MADEALA TELECOM TECHNOLOGY INC 256
204.237.250.0/24 AS63099 MADEALA TELECOM TECHNOLOGY INC 256
204.237.174.0/24 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

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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
108.146.116.87 AS20057 AT&T Enterprises, LLC 9.20ms from Chicago, US
97.208.179.103 AS6167 Verizon Business 15.91ms from Chicago, US
176.70.77.119 AS1257 Tele2 Sverige AB 0.47ms from Goeteborg, SE
131.207.23.231 AS375 Tietoevry Oyj 6.33ms from Helsinki, FI
23.226.1.7 AS23881 UDomain Web Hosting Company Ltd 0.65ms from Hong Kong, HK
5.64.183.135 AS5607 Sky UK Limited 5.93ms from London, GB
190.128.108.71 AS13489 UNE EPM TELECOMUNICACIONES S.A. 14.13ms from Medellin, CO
18.228.215.231 AS16509 Amazon.com, Inc. 0.18ms from Osasco, BR
82.226.134.215 AS12322 Free SAS 8.24ms from Paris, FR
218.32.145.7 AS9919 New Century InfoComm Tech Co., Ltd. 4.17ms from Taipei, TW
94.138.137.23 AS41034 Ltd. "SPA"Impulse" 10.54ms from Yekaterinburg, RU
81.247.21.103 AS5432 Proximus NV 6.66ms from Brussels, BE
104.240.110.103 AS5650 Frontier Communications of America, Inc. 10.02ms from Chicago, US
135.106.24.247 AS44559 IT HOSTLINE LTD 0.36ms from Istanbul, TR
178.78.121.135 AS2856 British Telecommunications PLC 5.96ms from London, GB
13.226.87.151 AS16509 Amazon.com, Inc. 0.55ms from Los Angeles, US
47.59.84.87 AS12430 VODAFONE ESPANA S.A.U. 8.82ms from Marseille, FR
202.178.95.7 AS4721 JCOM Co., Ltd. 1.66ms from Osaka, JP
54.243.243.247 AS14618 Amazon.com, Inc. 0.22ms from Reston, US
86.51.173.167 AS35819 Etihad Etisalat, a joint stock company 1.89ms from Riyadh, SA
217.150.160.135 AS29217 CGI Sverige AB 1.66ms from Stockholm, SE
92.35.116.39 AS8434 Telenor Sverige AB 0.98ms from Stockholm, SE
54.253.66.199 AS16509 Amazon.com, Inc. 0.14ms from Sydney, AU
175.164.182.71 AS4837 CHINA UNICOM China169 Backbone 1.93ms from Tieling, CN
90.164.39.39 AS12479 Orange Espagne SA 11.59ms from Zaragoza, ES

Traceroute

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

$
traceroute -a -n -q1 -f3 -m20 204.237.208.127
traceroute to 204.237.208.127 (204.237.208.127): 20 hops max, 52 byte packets
4 *
5 [AS1299] 80.91.254.91 79.562 ms
6 *
7 *
8 *
9 *
10 [AS1299] 62.115.140.246 142.371 ms
11 *
12 [AS1299] 62.115.156.225 167.695 ms
13 *
14 *
15 *
16 [AS20001] 72.129.25.15 157.168 ms
17 [AS20001] 72.129.5.181 158.572 ms
18 *
19 *
20 *
Measurement taken from IPinfo ProbeNet in Copenhagen, DK
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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