1. All IP Ranges
  2. 66.0.0.0/8
  3. 66.173.0.0/16
  4. AS4181  | 66.173.120.0/23

66.173.120.0/23

AS4181  ·  TDS TELECOM

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Summary

Country United States
Domain tdstelecom.com
ASN AS4181
Parent Range 66.173.0.0/17
Registry ARIN
ID NETBLK-TDSNET-BLK

WHOIS Details

NetHandle:      NET-66-173-0-0-1
OrgID:          TDST
Parent:         NET-66-0-0-0-0
NetName:        NETBLK-TDSNET-BLK
NetRange:       66.173.0.0 - 66.173.127.255
NetType:        allocation
Comment:        ADDRESSES WITHIN THIS BLOCK ARE NON-PORTABLE
RegDate:        2001-09-28
Updated:        2019-01-07
Source:         ARIN


OrgID:          TDST
OrgName:        TDS TELECOM
CanAllocate:    
Street:         525 Junction Rd.
City:           Madison
State/Prov:     WI
Country:        US
PostalCode:     53717
Comment:        http://www.tdstelecom.com
RegDate:        1994-12-16
Updated:        2024-11-25
OrgAdminHandle: INE14-ARIN
OrgTechHandle:  INE14-ARIN
OrgTechHandle:  INO44-ARIN
OrgTechHandle:  SERVI6-ARIN
OrgAbuseHandle: ABUSE163-ARIN
Source:         ARIN


POCHandle:      ABUSE163-ARIN
IsRole:         Y
LastName:       abuse
FirstName:      
Street:         525 Junction Rd
City:           Madison
State/Prov:     WI
Country:        US
PostalCode:     53717
RegDate:        2003-01-03
Updated:        2025-11-05
OfficePhone:    +1-800-358-3648
Mailbox:        abuse@tds.net
Source:         ARIN


POCHandle:      SERVI6-ARIN
IsRole:         Y
LastName:       Service Activation
FirstName:      
Street:         525 Junction Rd.
City:           Madison
State/Prov:     WI
Country:        US
PostalCode:     53717
RegDate:        2004-10-19
Updated:        2022-07-18
OfficePhone:    +1-800-358-3648
Mailbox:        serviceactivation@tdstelecom.com
Source:         ARIN


POCHandle:      INO44-ARIN
IsRole:         Y
LastName:       IP Network Operations
FirstName:      
Street:         525 Junction Road
City:           Madison
State/Prov:     WI
Country:        US
PostalCode:     53717
RegDate:        2012-01-12
Updated:        2025-11-05
OfficePhone:    +1-800-358-3648
Mailbox:        ispadmin@tdstelecom.com
Source:         ARIN


POCHandle:      INE14-ARIN
IsRole:         Y
LastName:       IP Network Engineering
FirstName:      
Street:         525 Junction Road
City:           Madison
State/Prov:     WI
Country:        US
PostalCode:     53717
RegDate:        2012-01-12
Updated:        2025-02-20
OfficePhone:    +1-800-358-3648
Mailbox:        IPRequests@tdstelecom.com
Source:         ARIN

Overlapping Ranges

BGP prefixes that contain 66.173.120.0/23

Range ASN Company Num of IPs
66.173.0.0/17 AS4181 TDS TELECOM 32,768

Nearby Ranges

BGP prefixes that overlap with 66.173.0.0/16

Range ASN Company Num of IPs
66.173.0.0/17 AS4181 TDS TELECOM 32,768
66.173.128.0/17 AS7029 Windstream Communications LLC 32,768
66.173.220.0/24 AS32833 STANDARD MOTOR PRODUCTS - 3718 NORTHERN 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

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

IP Address ASN Details
66.173.121.64 AS4181 TDS TELECOM 7.96ms from Seattle, US
66.173.120.1 AS4181 TDS TELECOM 7.36ms from Seattle, 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
77.62.140.23 AS1136 KPN B.V. 9.47ms from Amsterdam, NL
20.16.124.87 AS8075 Microsoft Corporation 0.25ms from Amsterdam, NL
178.156.221.87 AS213230 Hetzner Online GmbH 0.14ms from Ashburn, US
73.12.5.247 AS7922 Comcast Cable Communications, LLC 12.67ms from Ashburn, US
73.147.250.167 AS7922 Comcast Cable Communications, LLC 9.07ms from Ashburn, US
4.236.192.215 AS8075 Microsoft Corporation 0.42ms from Ashburn, US
190.228.201.23 AS7303 Telecom Argentina S.A. 19.40ms from Asuncion, PY
47.225.156.39 AS20115 Charter Communications LLC 14.87ms from Chicago, US
18.190.207.7 AS16509 Amazon.com, Inc. 0.12ms from Columbus, US
90.197.96.119 AS5607 Sky UK Limited 6.35ms from London, GB
24.220.14.39 AS11232 Midcontinent Communications 1.03ms from Minneapolis, US
90.156.240.231 AS25532 LLC "MASTERHOST" 0.77ms from Moscow, RU
124.160.133.135 AS4837 CHINA UNICOM China169 Backbone 7.57ms from Nanjing, CN
177.95.240.135 AS27699 TELEFÔNICA BRASIL S.A 2.43ms from Osasco, BR
187.87.170.183 AS53076 INTERPIRA INTERNET SERVICE PROVIDER LTDA 16.31ms from Osasco, BR
70.174.181.7 AS22773 Cox Communications Inc. 3.71ms from Phoenix, US
201.133.226.167 AS8151 UNINET 3.91ms from Santiago de Queretaro, MX
109.191.159.103 AS8369 Intersvyaz-2 JSC 3.62ms from Yekaterinburg, RU
81.204.42.135 AS1136 KPN B.V. 1.58ms from Amsterdam, NL
31.187.217.247 AS50266 Odido Netherlands B.V. 4.68ms from Amsterdam, NL
94.204.105.199 AS15802 Emirates Integrated Telecommunications Company PJSC 3.36ms from Dubai, AE
93.235.205.199 AS3320 Deutsche Telekom AG 9.83ms from Frankfurt am Main, DE
183.80.161.103 AS18403 FPT Telecom Company 1.80ms from Ho Chi Minh City, VN
49.87.154.87 AS4134 CHINANET-BACKBONE 1.48ms from Huai'an, CN
112.152.176.7 AS17858 LG POWERCOMM 2.83ms from Incheon, KR

Traceroute

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

$
traceroute -a -n -q1 -f4 66.173.121.44
traceroute to 66.173.121.44 (66.173.121.44): 64 hops max, 52 byte packets
4 [AS4181] 69.128.253.173 22.279 ms
5 [AS4181] 66.173.121.44 24.407 ms
Measurement taken from IPinfo ProbeNet in Denver, 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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