1. All IP Ranges
  2. 50.0.0.0/8
  3. 50.21.0.0/16
  4. AS4181  | 50.21.206.0/24

50.21.206.0/24

AS4181  ·  TDS TELECOM

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Summary

Country United States
Domain tdstelecom.com
ASN AS4181
Parent Range 50.21.192.0/20
Registry ARIN
ID NETBLK-TDSNET-BAJA

WHOIS Details

NetHandle:      NET-50-21-192-0-1
OrgID:          TDST
Parent:         NET-50-0-0-0-0
NetName:        NETBLK-TDSNET-BAJA
NetRange:       50.21.192.0 - 50.21.207.255
NetType:        allocation
RegDate:        2011-02-24
Updated:        2019-07-10
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:      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:      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


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:      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

Overlapping Ranges

BGP prefixes that contain 50.21.206.0/24

Range ASN Company Num of IPs
50.21.192.0/20 AS4181 TDS TELECOM 4,096

Nearby Ranges

BGP prefixes that overlap with 50.21.0.0/16

Range ASN Company Num of IPs
50.21.128.0/20 AS14102 Transvision Reseau Inc. 4,096
50.21.112.0/20 AS19045 Direct Communications Cedar Valley, LLC 4,096
50.21.0.0/20 AS20473 1512 Research, LLC 4,096
50.21.240.0/20 AS22645 Blinn College 4,096
50.21.144.0/20 AS27338 GoNetSpeed 4,096
50.21.160.0/20 AS29909 Metro Optic 4,096
50.21.192.0/20 AS4181 TDS TELECOM 4,096
50.21.176.0/20 AS8560 IONOS Inc. 4,096
50.21.80.0/20 AS9471 ONATI 4,096
50.21.104.0/21 AS397005 Central Virginia Services, INC 2,048
50.21.72.0/21 AS26097 Labyrinth Solutions Inc 2,048
50.21.16.0/21 AS21949 Beanfield Technologies Inc. 2,048
50.21.64.0/21 AS21949 Beanfield Technologies Inc. 2,048
50.21.24.0/22 AS62624 Nucleus 1,024
50.21.28.0/22 AS216306 MAX IT Finance LTD 1,024
50.21.96.0/22 AS397016 Hawkeye Telephone Company 1,024
50.21.224.0/23 AS852 Mascon Cable Systems Inc. 512
50.21.227.0/24 AS852 Mascon Cable Systems Inc. 256
50.21.166.0/24 AS29909 Connect4Clouds 256
50.21.168.0/24 AS29909 Storage Pipe Solutions 256
50.21.169.0/24 AS398216 Sichuun 256
50.21.237.0/24 AS852 Mascon Cable Systems Inc. 256
50.21.226.0/24 AS852 Mascon Cable Systems Inc. 256
50.21.236.0/24 AS852 Mascon Cable Systems 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

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

IP Address ASN Details
50.21.206.1 AS4181 TDS TELECOM 13.38ms from Denver, 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
128.192.247.24 AS36441 University of Georgia 2.26ms from Atlanta, US
97.181.69.184 AS6167 Verizon Business 11.24ms from Atlanta, US
44.250.227.200 AS16509 Amazon.com, Inc. 0.32ms from Boardman, US
92.180.193.56 AS15962 Orange Slovensko a.s. 15.72ms from Bratislava, SK
27.252.77.200 AS9500 One New Zealand Group Limited 7.25ms from Christchurch, NZ
213.35.74.104 AS54253 Oracle Corporation 1.22ms from Doha, QA
62.143.3.8 AS3209 Vodafone GmbH 6.66ms from Frankfurt am Main, DE
42.191.114.184 AS4788 TM TECHNOLOGY SERVICES SDN. BHD. 7.41ms from Kuala Lumpur, MY
67.127.12.200 AS7018 AT&T Enterprises, LLC 1.80ms from Los Angeles, US
24.230.247.120 AS11290 Cogeco Connexion inc 7.54ms from Montreal, CA
59.169.72.56 AS9824 JCOM Co., Ltd. 4.40ms from Osaka, JP
39.88.200.24 AS4837 CHINA UNICOM China169 Backbone 1.74ms from Qingdao, CN
190.110.194.152 AS22724 PUNTONET S.A. 0.50ms from Quito, EC
221.140.117.88 AS9318 SK Broadband Co Ltd 1.51ms from Seoul, KR
177.76.163.120 AS26599 TELEFÔNICA BRASIL S.A 3.36ms from São Paulo, BR
175.170.62.24 AS4837 CHINA UNICOM China169 Backbone 8.24ms from Tieling, CN
153.180.114.104 AS4713 NTT DOCOMO BUSINESS,Inc. 3.12ms from Tokyo, JP
77.46.76.72 AS41931 EURONET NORBERT SANIEWSKI SPOLKA JAWNA 2.96ms from Warsaw, PL
91.48.146.56 AS3320 Deutsche Telekom AG 8.64ms from Frankfurt am Main, DE
99.122.78.72 AS7018 AT&T Enterprises, LLC 9.08ms from Houston, US
126.220.127.168 AS17676 SoftBank Corp. 3.58ms from Osaka, JP
78.201.250.232 AS12322 Free SAS 10.48ms from Paris, FR
217.58.245.136 AS3269 Telecom Italia S.p.A. 1.36ms from Rome, IT
121.156.11.248 AS4766 Korea Telecom 9.28ms from Seoul, KR
119.28.101.248 AS132203 Tencent Building, Kejizhongyi Avenue 0.29ms from Singapore, SG

Traceroute

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

$
traceroute -a -n -q1 50.21.206.138
traceroute to 50.21.206.138 (50.21.206.138): 64 hops max, 52 byte packets
1 [AS140627] 103.112.0.1 0.323 ms
2 [AS140627] 103.151.64.29 108.901 ms
3 *
4 *
5 *
6 *
7 [AS4181] 50.21.206.138 151.121 ms
Measurement taken from IPinfo ProbeNet in Agana Heights Village, GU
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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