AS4323

tw telecom holdings, inc.

United States
Hosts 6,359 Domains
129,536 IP Addresses
ISP ASN
Allocated 27 years ago
Netblock Company Num of IPs
4.55.240.0/20 Level 3 Parent, LLC 4,096
50.58.114.0/24 BROOME COUNTY 256
50.58.120.0/24 INTERNET COMMUNICATIONS 256
50.58.12.0/24 Euronet Worldwide, Inc. 256
50.58.121.0/24 INTERNET COMMUNICATIONS 256
50.58.128.0/24 Gatan 256
50.58.13.0/24 Tulsa Hotel Partners, LLC 256
50.58.132.0/24 Word & Brown Insurance Administrators 256
50.58.134.0/24 OLAM 256
50.58.140.0/24 TechSpace Inc. 256
50.58.144.0/21 Downtown Phoenix Hotel Corporation 2,048
50.58.156.0/24 FIRST REPUBLIC BANK 256
50.58.182.0/24 WC BRADLEY - CHARBROIL 256
50.58.194.0/24 Acme Widget, LP 256
50.58.203.0/24 KERSHNER TRADING GROUP 256
50.58.225.0/24 Teksouth 256
50.58.23.0/24 Euronet Worldwide, Inc. 256
50.58.237.0/24 The Blood Alliance, Inc. 256
50.58.35.0/24 Macquarium Intelligent Communication 256
50.58.4.0/24 QUOTIENT TECHNOLOGY, LLC 256
50.58.44.0/24 Sypris Electronics LLC 256
50.58.50.0/24 Outreach, Inc 256
50.58.65.0/24 Sensus USA, Inc. 256
50.58.82.0/24 Cetrom Information Technology, Inc. 256
50.58.94.0/24 ITRON 256
50.58.96.0/24 TECORE, INC. 256
50.59.11.0/24 CALOPTIMA 256
50.59.12.0/24 WESTERN GROWERS 256
50.59.140.0/24 New Life Electronics 256
50.59.15.0/24 Landmark Education 256
50.59.174.0/24 FIRST REPUBLIC BANK 256
50.59.183.0/24 LLCCP50 256
50.59.184.0/23 Global CTI Group 512
50.59.19.0/24 INSIGHT INVESTMENTS, LLC 256
50.59.192.0/23 MICROCOMM INC 512
50.59.199.0/24 MDT Software 256
50.59.210.0/24 OFFICE SUITES PLUS - 08037 256
50.59.45.0/24 Lexington Suite Hotel LLC dba Embassy Suites Lexington 256
50.59.49.0/24 Rust Consulting Inc 256
50.59.60.0/24 National Cable Television Cooperative 256
50.59.6.0/24 Courtyard by Marriott San Luis Obispo 256
50.59.90.0/23 Marriott Hotel Services 512
50.59.94.0/24 TRINITY CONSULTANTS 256
50.59.99.0/24 3Essentials Hosting 256
64.128.10.0/24 GlobalHost.com 256
64.128.11.0/24 GlobalHost.com 256
64.128.119.0/24 Quality Vision International Inc. 256
64.128.120.0/24 TW Albany Customers 256
64.128.121.0/24 Red Barn Computers 256
64.128.123.0/24 Network Experts of New York Inc 256
64.128.13.0/24 TW Honolulu Customers 256
64.128.131.0/24 TW Memphis Customers 256
64.128.132.0/24 Ensafe Inc. 256
64.128.140.0/24 WC BRADLEY 256
64.128.163.0/24 MIC Business Solutions,Inc. 256
64.128.170.0/24 Office Suites PLUS 08028 256
64.128.179.0/24 TW Rochester Customers 256
64.128.188.0/24 TW Columbus Customers 256
64.128.201.0/24 TW Albuquerque Customers 256
64.128.202.0/24 CareFusion 256
64.128.213.0/24 TW Charlotte Customers 256
64.128.218.0/24 KRISPY KREME DOUGHNUT CORP. 256
64.128.219.0/24 TW Charlotte Customers 256
64.128.221.0/24 TW Raleigh Customers 256
64.128.226.0/24 Internet Communications 256
64.128.236.0/24 Hassler Communication Systems Technology, Inc 256
64.128.237.0/24 carver companies 256
64.128.238.0/24 TW Columbus Customers 256
64.128.242.0/24 TW Orlando Customers 256
64.128.247.0/24 TW Tampa Customers 256
64.128.25.0/24 TW Houston Customers 256
64.128.255.0/24 MICROCOMM INC 256
64.128.26.0/24 TW Tulsa Customers 256
64.128.40.0/24 Elon University 256
64.128.42.0/24 TW Charlotte Customers 256
64.128.54.0/23 FIRST REPUBLIC BANK 512
64.128.72.0/24 TW Columbia Customers 256
64.128.74.0/24 Greenville-Spartanburg Airport District 256
64.128.76.0/24 TW Charlotte Customers 256
64.128.80.0/23 J&R ELECTRONICS INC 512
64.128.84.0/24 TW Spokane Customers 256
64.128.86.0/24 CMD 256
64.128.93.0/24 Molina Health Care 256
64.129.11.0/24 TW Honolulu Customers 256
64.129.116.0/24 TW Rochester Customers 256
64.129.117.0/24 LASTAR INC 256
64.129.12.0/24 TW Honolulu Customers 256
64.129.128.0/24 TW Columbia Customers 256
64.129.132.0/24 CITY OF BURLINGTON 256
64.129.133.0/24 TW Charlotte Customers 256
64.129.136.0/24 Union County Public Library 256
64.129.141.0/24 TW Raleigh Customers 256
64.129.142.0/24 BIS GLOBAL 256
64.129.154.0/24 TW Houston Customers 256
64.129.155.0/24 Enterprise Products 256
64.129.156.0/24 Dell 256
64.129.16.0/24 SUPPORT FUNCTIONS INC 256
64.129.164.0/24 Tyler Technologies Inc 256
64.129.166.0/24 Centaur Technology 256
64.129.171.0/24 TW Austin Customers 256

There are no known IPv6 addresses belonging to this network

Data from ASN API

WHOIS Details

ASHandle:       AS4323
OrgID:          TWTC
ASName:         CENTURYLINK-LEGACY-TWTC
ASNumber:       4323
RegDate:        1995-02-01
Updated:        2019-12-04
TechHandle:     IT65-ARIN
Source:         ARIN


OrgID:          TWTC
OrgName:        tw telecom holdings, inc.
CanAllocate:    
Street:         10475 Park Meadows Drive
City:           Littleton
State/Prov:     CO
Country:        US
PostalCode:     80124
Comment:        ADDRESSES WITHIN THIS BLOCK ARE NON-PORTABLE ANY ISP ANNOUNCING PORTIONS WITHIN OUR RANGES SHOULD NOT RELY ON PRESENTED LOA'S UNLESS THOSE RANGES ARE ALSO ANNOUNCED TO A CENTURYLINK ASN.
Comment:        All abuse reports MUST include:
Comment:        * src IP
Comment:        * dest IP (your IP)
Comment:        * dest port
Comment:        * Accurate date/timestamp and timezone of activity
Comment:        * Intensity/frequency (short log extracts)
Comment:        * Your contact details (phone and email)
Comment:        Without these we will be unable to identify the correct owner of the IP address at that point in time.
Comment:        For subpoena or court order please fax 844.254.5800 or refer to our Law Enforcement Support page
Comment:        https://www.centurylink.com/aboutus/legal/privacy-notice/law-enforcement-support.html
RegDate:        1999-03-17
Updated:        2021-03-11
ReferralServer: rwhois://rwhois.ctl.one:4321
OrgAbuseHandle: TWTAD-ARIN
OrgAdminHandle: ZT87-ARIN
OrgNOCHandle:   TDN1-ARIN
OrgTechHandle:  NST12-ARIN
Source:         ARIN


POCHandle:      NST12-ARIN
IsRole:         Y
LastName:       NOC SWIP Team
FirstName:      
Street:         10475 Park Meadows Drive
City:           Littleton
State/Prov:     CO
Country:        US
PostalCode:     80124
RegDate:        2003-05-21
Updated:        2021-02-25
OfficePhone:    +1-800-829-0420
Mailbox:        ipaddressing@level3.com
Source:         ARIN


POCHandle:      ZT87-ARIN
IsRole:         Y
LastName:       IP Manager
FirstName:      
Street:         700 W Mineral Ave
City:           Littleton
State/Prov:     CO
Country:        US
PostalCode:     80120
RegDate:        2001-08-03
Updated:        2021-03-05
OfficePhone:    +1-800-829-0420
Mailbox:        ipinv@centurylink.com
Mailbox:        ipadmin@centurylink.com
Source:         ARIN


POCHandle:      TWTAD-ARIN
IsRole:         Y
LastName:       tw telecom Abuse Desk
FirstName:      
Street:         1025 Eldorado Blvd.
City:           Broomfield
State/Prov:     CO
Country:        US
PostalCode:     80021
RegDate:        2002-10-07
Updated:        2019-07-05
OfficePhone:    +1-800-829-0420
Mailbox:        security@level3.com
Mailbox:        abuse@level3.com
Source:         ARIN


POCHandle:      TDN1-ARIN
IsRole:         Y
LastName:       TWTC Data NOC
FirstName:      
Street:         10475 Park Meadows Drive
City:           Littleton
State/Prov:     CO
Country:        US
PostalCode:     80124
RegDate:        2003-05-23
Updated:        2019-07-05
OfficePhone:    +1-800-829-0420
Mailbox:        noc.coreip@level3.com
Source:         ARIN


POCHandle:      IT65-ARIN
IsRole:         Y
LastName:       tw telecom Peering
FirstName:      
Street:         10475 Park Meadows Dr
City:           Littleton
State/Prov:     CO
Country:        US
PostalCode:     80124
RegDate:        2002-01-10
Updated:        2021-07-09
OfficePhone:    +1-800-829-0420
Mailbox:        ipaddressing@level3.com
Source:         ARIN
Data from ASN API

Hosted Domains

There are 6,359 domain names hosted across 1,060 IP addresses on this ASN.

IP Address Domain Domains on this IP

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

Peers

There is 1 peer for this ASN.

Peers Name
AS2044 Digital Fortress
Data from ASN API

Upstreams

There are no upstreams for this ASN.

Data from ASN API

Downstreams

There are 3 downstreams for this ASN.

Downstreams Name
AS14214 Minacs Inc
AS3356 Level 3 Parent, LLC
AS398120 Liggett Vector Brands, LLC
Data from ASN API

Related Networks

Details

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP.

Find out more about AS4323 at robtex.

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