1. All IP Ranges
  2. 72.0.0.0/8
  3. 72.37.0.0/16
  4. AS20001  | 72.37.240.0/23

72.37.240.0/23

AS20001  ·  Charter Communications Inc

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Summary

Country United States
Domain ipnetzone.com
ASN AS20001
Parent Range 72.37.128.0/17
Registry ARIN
ID GTT-CUSTOMER

WHOIS Details

NetHandle:      NET-72-37-240-0-1
OrgID:          IPNET-1
Parent:         NET-72-37-128-0-1
NetName:        GTT-CUSTOMER
NetRange:       72.37.240.0 - 72.37.241.255
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:      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:      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:      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:      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 72.37.240.0/23

Range ASN Company Num of IPs
72.37.128.0/17 AS3257 PacketExchange, Inc 32,768

Nearby Ranges

BGP prefixes that overlap with 72.37.0.0/16

Range ASN Company Num of IPs
72.37.128.0/17 AS3257 PacketExchange, Inc 32,768
72.37.0.0/17 AS10405 Union Pacific Railroad Company 32,768
72.37.224.0/21 AS7203 Nobis Technology Group, LLC 2,048
72.37.180.0/22 AS23316 Bel Air Internet, LLC 1,024
72.37.168.0/23 AS20001 IPNetZone 512
72.37.246.0/23 AS20001 IPNetZone 512
72.37.238.0/23 AS20001 IPNetZone 512
72.37.154.0/23 AS20001 IPNetZone 512
72.37.164.0/23 AS20001 IPNetZone 512
72.37.134.0/23 AS23316 Bel Air Internet, LLC 512
72.37.242.0/23 AS27411 Nobis Technology Group, LLC 512
72.37.160.0/23 AS20001 IPNetZone 512
72.37.214.0/23 AS20001 IPNetZone 512
72.37.128.0/23 AS23316 Bel Air Internet, LLC 512
72.37.202.0/23 AS3257 3rd Echelon Corp. 512
72.37.216.0/23 AS46562 Zerolag Communications, Inc. 512
72.37.222.0/23 AS7203 Nobis Technology Group, LLC 512
72.37.218.0/23 AS7203 Nobis Technology Group, LLC 512
72.37.163.0/24 AS3257 CpanelLogin.net 256
72.37.237.0/24 AS7203 Nobis Technology Group, LLC 256
72.37.212.0/24 AS3257 CpanelLogin.net 256
72.37.221.0/24 AS7203 Nobis Technology Group, LLC 256
72.37.153.0/24 AS5065 Bunny Communications 256
72.37.140.0/24 AS5065 Bunny Communications 256
72.37.137.0/24 AS5065 Bunny Communications 256
72.37.133.0/24 AS5065 Bunny Communications 256
72.37.139.0/24 AS5065 Bunny Communications 256
72.37.146.0/24 AS5065 Bunny Communications 256
72.37.157.0/24 AS5065 Bunny Communications 256
72.37.142.0/24 AS23316 Bel Air Internet, LLC 256
72.37.201.0/24 AS11403 SIRIUS TELECOMMUNICATIONS, INC. 256
72.37.141.0/24 AS23316 Bel Air Internet, LLC 256
72.37.136.0/24 AS19257 MetroDataPath, LLC 256
72.37.159.0/24 AS19257 Oneando, LLC 256

Hosted domains

There are no domains currently hosted on this ASN.

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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
109.137.198.183 AS5432 Proximus NV 1.94ms from Brussels, BE
186.129.76.71 AS22927 Telefonica de Argentina 2.79ms from Buenos Aires, AR
197.45.254.151 AS8452 TE-AS 7.78ms from Cairo, EG
76.234.46.231 AS7018 AT&T Enterprises, LLC 18.40ms from Chicago, US
34.99.243.231 AS396982 Google LLC 0.14ms from Frankfurt am Main, DE
142.167.143.55 AS855 Bell Canada 6.06ms from Fredericton, CA
47.97.233.55 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 4.39ms from Hangzhou, CN
104.74.178.151 AS16625 Akamai Technologies, Inc. 0.81ms from Incheon, KR
50.60.11.71 AS25019 Saudi Telecom Company JSC 2.47ms from Jeddah, SA
104.54.103.71 AS7018 AT&T Enterprises, LLC 19.39ms from Kansas City, US
5.224.116.7 AS12430 VODAFONE ESPANA S.A.U. 10.14ms from Madrid, ES
73.29.189.151 AS7922 Comcast Cable Communications, LLC 9.04ms from New York City, US
82.224.94.7 AS12322 Free SAS 12.11ms from Paris, FR
105.156.95.231 AS36903 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM 4.26ms from Rabat, MA
163.192.182.135 AS11049 Oracle Corporation 0.32ms from San Jose, US
113.233.236.135 AS4837 CHINA UNICOM China169 Backbone 7.82ms from Tieling, CN
59.175.200.103 AS4134 CHINANET-BACKBONE 1.51ms from Wuhan, CN
123.56.188.135 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 2.10ms from Beijing, CN
14.201.8.39 AS7545 TPG Telecom Limited 1.91ms from Brisbane, AU
93.199.90.55 AS3320 Deutsche Telekom AG 6.53ms from Frankfurt am Main, DE
99.163.113.167 AS7018 AT&T Enterprises, LLC 1.66ms from Houston, US
117.198.21.71 AS9829 National Internet Backbone 3.94ms from Mumbai, IN
203.180.17.167 AS2497 Internet Initiative Japan Inc. 1.79ms from Osaka, JP
220.133.7.247 AS3462 Data Communication Business Group 5.55ms from Taichung, TW
223.100.246.103 AS56044 China Mobile communications corporation 10.77ms from Tieling, CN

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 72.37.240.32
traceroute to 72.37.240.32 (72.37.240.32): 15 hops max, 52 byte packets
2 [] 206.51.7.5 0.704 ms
4 *
5 [AS6939] 184.105.53.22 33.609 ms
6 [AS7843] 209.18.43.76 68.51 ms
7 [AS7843] 66.109.5.228 42.847 ms
8 [AS7843] 66.109.6.65 41.972 ms
9 [AS20001] 72.129.5.117 43.176 ms
10 [AS20001] 72.129.5.181 44.76 ms
11 *
12 [AS20001] 76.80.211.250 45.761 ms
13 *
14 *
15 *
Measurement taken from IPinfo ProbeNet in Kansas City, 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.

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