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  2. 50.0.0.0/8
  3. 50.21.0.0/16
  4. AS4181  | 50.21.207.0/24

50.21.207.0/24

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:      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:      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

Overlapping Ranges

BGP prefixes that contain 50.21.207.0/24

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

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

IP Address ASN Details
50.21.207.1 AS4181 TDS TELECOM 8.41ms from Los Angeles, 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
162.141.197.72 AS7029 Windstream Communications LLC 0.54ms from Ashburn, US
181.62.198.56 AS10620 Telmex Colombia S.A. 12.38ms from Bogota, CO
200.84.85.88 AS8048 CANTV Servicios, Venezuela 19.79ms from Caracas, VE
73.209.63.152 AS7922 Comcast Cable Communications, LLC 5.37ms from Chicago, US
20.102.238.152 AS8075 Microsoft Corporation 0.36ms from Chicago, US
222.233.32.40 AS9318 SK Broadband Co Ltd 1.38ms from Incheon, KR
175.141.182.104 AS4788 TM TECHNOLOGY SERVICES SDN. BHD. 2.76ms from Kuala Lumpur, MY
190.128.1.168 AS13489 UNE EPM TELECOMUNICACIONES S.A. 7.70ms from Medellin, CO
46.72.37.72 AS12714 PJSC MegaFon 10.49ms from Moscow, RU
184.105.238.120 AS394996 47-2339071 0.83ms from New York City, US
73.189.183.152 AS7922 Comcast Cable Communications, LLC 5.50ms from Santa Clara, US
121.136.15.200 AS4766 Korea Telecom 1.80ms from Seoul, KR
115.58.35.184 AS4837 CHINA UNICOM China169 Backbone 4.07ms from Zhengzhou, CN
175.35.209.8 AS4804 Microplex PTY LTD 2.48ms from Adelaide, AU
94.65.85.168 AS6799 Ote SA (Hellenic Telecommunications Organisation) 1.21ms from Athens, GR
186.129.92.200 AS22927 Telefonica de Argentina 2.89ms from Buenos Aires, AR
221.237.51.248 AS4134 CHINANET-BACKBONE 3.13ms from Chengdu, CN
175.4.137.56 AS4134 CHINANET-BACKBONE 5.72ms from Chenzhou, CN
169.62.184.232 AS36351 IBM Cloud 1.05ms from Dallas, US
95.117.26.184 AS6805 Telefonica Germany GmbH & Co.OHG 9.05ms from Frankfurt am Main, DE
91.34.254.168 AS3320 Deutsche Telekom AG 1.54ms from Hamburg, DE
115.98.69.40 AS17488 Hathway IP Over Cable Internet 1.56ms from Hyderabad, IN
81.41.150.200 AS3352 TELEFONICA DE ESPANA S.A.U. 6.70ms from Madrid, ES
3.168.110.216 AS16509 Amazon.com, Inc. 0.15ms from New York City, US
35.169.202.216 AS14618 Amazon.com, Inc. 0.22ms from Reston, US

Traceroute

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

$
traceroute -a -n -q1 -f3 50.21.207.4
traceroute to 50.21.207.4 (50.21.207.4): 64 hops max, 52 byte packets
3 [] 206.72.210.140 1.474 ms
4 *
5 [AS4181] 50.21.207.4 14.549 ms
Measurement taken from IPinfo ProbeNet in Los Angeles, 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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