1. All IP Ranges
  2. 209.0.0.0/8
  3. 209.55.0.0/16
  4. AS16857  | 209.55.104.0/23

209.55.104.0/23

AS16857  ·  Central Texas Telecommunications

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Summary

Country United States
Domain centex.net
ASN AS16857
Parent Range 209.55.104.0/21
Registry ARIN
ID CTTC-7-209-55-104-0

WHOIS Details

NetHandle:      NET-209-55-104-0-1
OrgID:          CTTC-7
Parent:         NET-209-55-64-0-1
NetName:        CTTC-7-209-55-104-0
NetRange:       209.55.104.0 - 209.55.111.255
NetType:        reallocation
RegDate:        2019-10-09
Updated:        2019-10-09
Source:         ARIN


OrgID:          CTTC-7
OrgName:        Central Texas Telecommunications
CanAllocate:    
Street:         PO Box 627
City:           Goldthwaite
State/Prov:     TX
Country:        US
PostalCode:     76844
RegDate:        2019-08-12
Updated:        2026-01-27
OrgAdminHandle: SC1235-ARIN
OrgTechHandle:  MWG4-ARIN
OrgTechHandle:  SC1235-ARIN
OrgTechHandle:  SYSTE112-ARIN
OrgAbuseHandle: SC1235-ARIN
OrgAbuseHandle: SYSTE112-ARIN
OrgNOCHandle:   SC1235-ARIN
OrgNOCHandle:   SYSTE112-ARIN
Source:         ARIN


POCHandle:      SC1235-ARIN
IsRole:         N
LastName:       Calder
FirstName:      Shawn
Street:         1012 Reilly Street
City:           Goldthwaite
State/Prov:     TX
Country:        US
PostalCode:     76844
RegDate:        2001-10-17
Updated:        2025-10-01
OfficePhone:    +1-325-938-5611
Mailbox:        shawnc@centexnet.com
Source:         ARIN


POCHandle:      SYSTE112-ARIN
IsRole:         Y
LastName:       System Administrator
FirstName:      
Street:         1012 Reilly Street
City:           Goldthwaite
State/Prov:     TX
Country:        US
PostalCode:     76844
RegDate:        2005-06-13
Updated:        2025-10-01
OfficePhone:    +1-325-938-5611
Mailbox:        sysadmin@centex.net
Source:         ARIN


POCHandle:      MWG4-ARIN
IsRole:         N
LastName:       Garrison
FirstName:      Mitchell
Street:         3389 Knickerbocker Rd
City:           San Angelo
State/Prov:     TX
Country:        US
PostalCode:     76904
RegDate:        2011-01-25
Updated:        2026-03-04
OfficePhone:    +1-325-656-7000
Mailbox:        mitchg@centexnet.com
Source:         ARIN

Overlapping Ranges

BGP prefixes that contain 209.55.104.0/23

Range ASN Company Num of IPs
209.55.104.0/21 AS16857 Central Texas Telecommunications 2,048

Nearby Ranges

BGP prefixes that overlap with 209.55.0.0/16

Range ASN Company Num of IPs
209.55.0.0/19 AS25645 Momentum Telecom, Inc. 8,192
209.55.0.0/19 AS10397 Momentum Telecom, Inc. 8,192
209.55.96.0/21 AS16857 Central Texas Telecommunications 2,048
209.55.72.0/21 AS16857 Central Texas Telecommunications 2,048
209.55.104.0/21 AS16857 Central Texas Telecommunications 2,048
209.55.120.0/22 AS16823 Nortex Communications Company 1,024
209.55.64.0/23 AS16857 Central Texas Telecommunications 512
209.55.149.0/24 AS22616 Zscaler, Inc. 256
209.55.155.0/24 AS22616 Zscaler, Inc. 256
209.55.158.0/24 AS22616 Zscaler, Inc. 256
209.55.159.0/24 AS22616 Zscaler, Inc. 256
209.55.162.0/24 AS22616 Zscaler, Inc. 256
209.55.163.0/24 AS22616 Zscaler, Inc. 256
209.55.174.0/24 AS22616 Zscaler, Inc. 256
209.55.175.0/24 AS22616 Zscaler, Inc. 256
209.55.187.0/24 AS22616 Zscaler, Inc. 256
209.55.188.0/24 AS22616 Zscaler, Inc. 256
209.55.216.0/24 AS22616 Zscaler, Inc. 256
209.55.217.0/24 AS22616 Zscaler, Inc. 256
209.55.220.0/24 AS22616 Zscaler, Inc. 256
209.55.221.0/24 AS22616 Zscaler, Inc. 256
209.55.129.0/24 AS53813 Zscaler Softech India Private Limited 256
209.55.130.0/24 AS53813 Zscaler Softech India Private Limited 256
209.55.133.0/24 AS53813 Zscaler, Inc. 256
209.55.136.0/24 AS53813 Zscaler Softech India Private Limited 256
209.55.137.0/24 AS53813 Zscaler Softech India Private Limited 256
209.55.140.0/24 AS53813 Zscaler, Inc. 256
209.55.150.0/24 AS53813 Zscaler Softech India Private Limited 256
209.55.151.0/24 AS53813 Zscaler Softech India Private Limited 256
209.55.157.0/24 AS53813 Zscaler, Inc. 256
209.55.166.0/24 AS53813 Zscaler, Inc. 256
209.55.167.0/24 AS53813 Zscaler, Inc. 256
209.55.182.0/24 AS53813 Zscaler, Inc. 256
209.55.202.0/24 AS53813 Zscaler Softech India Private Limited 256
209.55.203.0/24 AS53813 Zscaler Softech India Private Limited 256
209.55.204.0/24 AS53813 Zscaler Softech India Private Limited 256
209.55.205.0/24 AS53813 Zscaler Softech India Private Limited 256
209.55.211.0/24 AS53813 Zscaler, Inc. 256
209.55.212.0/24 AS53813 Zscaler, Inc. 256
209.55.128.0/24 AS62044 Zscaler, Inc. 256
209.55.138.0/24 AS62044 Zscaler, Inc. 256
209.55.139.0/24 AS62044 Zscaler, Inc. 256
209.55.143.0/24 AS62044 Zscaler, Inc. 256
209.55.144.0/24 AS62044 Zscaler, Inc. 256
209.55.152.0/24 AS62044 Zscaler, Inc. 256
209.55.153.0/24 AS62044 Zscaler, Inc. 256
209.55.154.0/24 AS62044 Zscaler, Inc. 256
209.55.156.0/24 AS62044 Zscaler, Inc. 256
209.55.161.0/24 AS62044 Zscaler, Inc. 256
209.55.172.0/24 AS62044 Zscaler, 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

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

IP Address ASN Details
209.55.104.1 AS16857 Central Texas Telecommunications 8.06ms from Dallas, 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
124.170.13.39 AS7545 TPG Telecom Limited 1.79ms from Brisbane, AU
14.174.58.135 AS45899 VNPT Corp 9.16ms from Da Nang, VN
135.130.60.71 AS8075 Microsoft Corporation 3.71ms from Denver, US
65.63.5.183 AS8011 MongoDB, Inc. 0.10ms from Dublin, IE
213.97.98.183 AS3352 TELEFONICA DE ESPANA S.A.U. 1.41ms from Madrid, ES
31.37.198.55 AS5410 Bouygues Telecom SA 4.80ms from Marseille, FR
212.45.235.199 AS44736 MTS PJSC 14.36ms from Moscow, RU
51.174.109.87 AS29695 Lyse Tele AS 6.77ms from Oslo, NO
116.38.124.103 AS17858 LG POWERCOMM 1.56ms from Seoul, KR
69.246.154.87 AS7922 Comcast Cable Communications, LLC 9.92ms from Atlanta, US
76.208.231.231 AS7018 AT&T Enterprises, LLC 10.05ms from Chicago, US
52.30.187.87 AS16509 Amazon.com, Inc. 0.18ms from Dublin, IE
175.114.60.7 AS9318 SK Broadband Co Ltd 1.35ms from Incheon, KR
2.217.209.23 AS5607 Sky UK Limited 1.88ms from London, GB
76.82.66.7 AS20001 Charter Communications Inc 4.63ms from Los Angeles, US
67.171.191.247 AS7922 Comcast Cable Communications, LLC 2.27ms from Portland, US
62.85.5.39 AS12578 SIA Tet 1.12ms from Riga, LV
67.157.104.23 AS1226 California Department of Technology 4.38ms from Santa Clara, US
175.231.186.39 AS4766 Korea Telecom 1.57ms from Seoul, KR
8.133.20.135 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 2.48ms from Shanghai, CN
36.230.24.71 AS3462 Data Communication Business Group 1.43ms from Taipei, TW
126.10.18.87 AS17676 SoftBank Corp. 5.79ms from Tokyo, JP
113.176.154.103 AS45899 VNPT Corp 8.66ms from Da Nang, VN
54.77.52.23 AS16509 Amazon.com, Inc. 0.18ms from Dublin, IE
213.168.86.199 AS8422 NetCologne Gesellschaft fur Telekommunikation mbH 1.60ms from Duesseldorf, DE

Traceroute

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

$
traceroute -a -n -q1 -m5 209.55.105.122
traceroute to 209.55.105.122 (209.55.105.122): 5 hops max, 52 byte packets
3 *
4 *
5 *
Measurement taken from IPinfo ProbeNet in Abu Dhabi, AE
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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