1. All IP Ranges
  2. 204.0.0.0/8
  3. 204.237.0.0/16
  4. AS20001  | 204.237.172.0/23

204.237.172.0/23

AS20001  ·  Charter Communications Inc

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

Sign up for free ›

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-204-237-172-0-1
OrgID:          IPNET-1
Parent:         NET-204-237-128-0-1
NetName:        GTT-CUSTOMER
NetRange:       204.237.172.0 - 204.237.173.255
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:      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:      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:      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:      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:      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 204.237.172.0/23

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
204.237.144.0/22 AS2914 Private Customer 1,024
204.237.240.0/22 AS2914 Private Customer 1,024
204.237.152.0/22 AS2914 Private Customer 1,024
204.237.232.0/22 AS2914 Private Customer 1,024
204.237.156.0/22 AS2914 Private Customer 1,024
204.237.212.0/22 AS2914 Private Customer 1,024
204.237.148.0/22 AS2914 Private Customer 1,024
204.237.136.0/22 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
204.237.204.0/23 AS20001 IPNetZone 512
204.237.192.0/23 AS20001 IPNetZone 512
204.237.190.0/23 AS20001 IPNetZone 512
204.237.128.0/23 AS20001 IPNetZone 512
204.237.246.0/23 AS20001 IPNetZone 512
204.237.208.0/23 AS20001 IPNetZone 512
204.237.180.0/23 AS20001 IPNetZone 512
204.237.254.0/23 AS20001 IPNetZone 512
204.237.140.0/23 AS20001 IPNetZone 512
204.237.244.0/23 AS32596 Camber Corporation 512
204.237.253.0/24 AS205615 SSC Technologies 256
204.237.236.0/24 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
204.237.250.0/24 AS63099 MADEALA TELECOM TECHNOLOGY INC 256
204.237.178.0/24 AS63099 MADEALA TELECOM TECHNOLOGY INC 256
204.237.177.0/24 AS63099 MADEALA TELECOM TECHNOLOGY INC 256
204.237.174.0/24 AS63099 MADEALA TELECOM TECHNOLOGY INC 256
204.237.238.0/24 AS63099 MADEALA TELECOM TECHNOLOGY INC 256
204.237.252.0/24 AS63099 MADEALA TELECOM TECHNOLOGY INC 256
204.237.203.0/24 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
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
91.96.234.135 AS9145 EWE TEL GmbH 7.76ms from Amsterdam, NL
71.114.18.103 AS701 Verizon Business 2.11ms from Ashburn, US
23.36.11.71 AS16625 Akamai Technologies, Inc. 0.50ms from Atlanta, US
202.29.38.247 AS4621 UNINET-TH 0.60ms from Bangkok, TH
172.10.84.135 AS7018 AT&T Enterprises, LLC 6.10ms from Chicago, US
91.73.185.7 AS15802 Emirates Integrated Telecommunications Company PJSC 3.52ms from Dubai, AE
79.214.208.135 AS3320 Deutsche Telekom AG 6.36ms from Frankfurt am Main, DE
159.237.112.103 AS198878 Universidad de Navarra 13.25ms from Madrid, ES
4.233.75.199 AS8075 Microsoft Corporation 0.37ms from Paris, FR
83.208.225.135 AS5610 O2 Czech Republic, a.s. 5.08ms from Prague, CZ
86.196.48.231 AS3215 Orange S.A. 4.10ms from Saint-Denis, FR
13.88.184.71 AS8075 Microsoft Corporation 0.57ms from San Jose, US
78.12.34.167 AS16509 Amazon.com, Inc. 0.38ms from Santiago de Queretaro, MX
189.146.179.247 AS8151 UNINET 4.13ms from Santiago de Queretaro, MX
121.126.68.71 AS4766 Korea Telecom 0.81ms from Seoul, KR
54.37.14.71 AS16276 OVH SAS 0.16ms from Strasbourg, FR
214.47.92.183 AS5972 United States Department of Defense (DoD) 4.61ms from Ashburn, US
87.203.103.183 AS6799 Ote SA (Hellenic Telecommunications Organisation) 2.53ms from Athens, GR
118.208.20.55 AS7545 TPG Telecom Limited 1.67ms from Brisbane, AU
94.27.235.215 AS5483 Magyar Telekom Plc. 6.30ms from Budapest, HU
3.150.180.23 AS16509 Amazon.com, Inc. 0.18ms from Columbus, US
104.198.162.87 AS396982 Google LLC 0.11ms from Council Bluffs, US
14.162.1.39 AS45899 VNPT Corp 1.44ms from Hanoi, VN
218.252.117.39 AS9908 HK Cable TV Ltd 1.38ms from Hong Kong, HK
68.201.174.183 AS11427 Charter Communications Inc 11.99ms from Houston, US

Traceroute

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

$
traceroute -a -n -q1 -m24 204.237.172.156
traceroute to 204.237.172.156 (204.237.172.156): 24 hops max, 52 byte packets
2 *
3 *
4 [AS46309] 209.161.14.7 0.935 ms
7 [AS6461] 208.184.95.26 15.486 ms
8 [AS6461] 64.125.24.121 0.932 ms
9 *
10 [AS6461] 64.125.20.27 21.508 ms
11 [AS6461] 64.125.19.228 21.391 ms
12 *
13 *
14 [AS6461] 208.184.13.53 22.199 ms
15 [AS7843] 107.14.19.40 22.348 ms
16 [AS7843] 66.109.3.231 21.4 ms
17 [AS20001] 72.129.1.245 22.109 ms
18 [AS20001] 72.129.25.15 24.456 ms
19 [AS20001] 72.129.5.181 24.737 ms
20 *
21 [AS20001] 76.80.211.250 24.027 ms
22 *
23 *
24 *
Measurement taken from IPinfo ProbeNet in Boise, US
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.

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
IPinfo for all your IP geolocation needs

Our IP tools

Explore all tools
What is my IP

What is my IP

Test our data accuracy by viewing insights from your IP address.

See your IP address
Map IPs

Map IPs

Paste up to 500,000 IPs to see where they're located on a map.

Try Map IPs
Summarize IPs

Summarize IPs

Use our data visualization tool to create a visual overview of multiple IPs.

Try Summarize IPs