Threat Level: green Handler on Duty: Kevin Liston

SANS ISC IP Info: 50.58.0.0


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General Information

IP Address (click for more detail): 50.58.0.0
Hostname: 50.58.0.0
Country: US
AS: 4323
AS Name: TWTC - tw telecom holdings, inc.,US
Network: 50.58.0.0/20 (50.58.0.0-50.58.15.255) 50.58.16.0
Reports: - none -
Targets: - none -
First Reported: N/A
Most Recent Report: N/A
Comment: - none -

Note: This data is updated periodially. In order to refresh the data, click here. Not all source IPs in our database are "attackers". There are a few common false positives. For example, hosts that participate in P2P networks, mail servers, load balancers and DNS servers are some of the most common issues. You can see more details if you click on the number of reports. This may allow you to conclude if a host is a false positive or not.

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SSH Logs

no ssh logs.

404Project Info (beta)

-- no 404 reports for this IP address --

For more details about the "404 project", see the 404Project Page. Do not use these reports to identify IP addresses as "bad" for now.

Stop Forum Spam Lists

stopforumspam.com link arrow provide lists of spammers that persist in abusing forums and blogs. ISC has begun compiling and including their reporting data here. Please contact us with any problems or suggestions in this section.

Additional data may be found by searching an IP on stopforumspam.com/ipcheck/50.58.0.0 link arrow

No Local Data Found

Whois Info

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NetRange:       50.58.0.0 - 50.59.255.255
CIDR:           50.58.0.0/15
NetName:        TWTC-NETBLK-19
NetHandle:      NET-50-58-0-0-1
Parent:         NET50 (NET-50-0-0-0-0)
NetType:        Direct Allocation
OriginAS:       
Organization:   tw telecom holdings, inc. (TWTC)
RegDate:        2011-01-21
Updated:        2012-02-24
Ref:            http://whois.arin.net/rest/net/NET-50-58-0-0-1

OrgName:        tw telecom holdings, inc.
OrgId:          TWTC
Address:        10475 Park Meadows Drive
City:           Littleton
StateProv:      CO
PostalCode:     80124
Country:        US
RegDate:        1999-03-17
Updated:        2008-10-04
Ref:            http://whois.arin.net/rest/org/TWTC

ReferralServer: rwhois://rwhois.twtelecom.net:4321

OrgAbuseHandle: TWTAD-ARIN
OrgAbuseName:   tw telecom Abuse Desk
OrgAbusePhone:  +1-800-898-6473 
OrgAbuseEmail:  abuse@twtelecom.net
OrgAbuseRef:    http://whois.arin.net/rest/poc/TWTAD-ARIN

OrgNOCHandle: TDN1-ARIN
OrgNOCName:   TWTC Data NOC
OrgNOCPhone:  +1-800-898-6473 
OrgNOCEmail:  support@twtelecom.net
OrgNOCRef:    http://whois.arin.net/rest/poc/TDN1-ARIN

OrgTechHandle: NST12-ARIN
OrgTechName:   NOC SWIP Team
OrgTechPhone:  +1-800-898-6473 
OrgTechEmail:  swip@twtelecom.com
OrgTechRef:    http://whois.arin.net/rest/poc/NST12-ARIN

RNOCHandle: TDN1-ARIN
RNOCName:   TWTC Data NOC
RNOCPhone:  +1-800-898-6473 
RNOCEmail:  support@twtelecom.net
RNOCRef:    http://whois.arin.net/rest/poc/TDN1-ARIN

RAbuseHandle: TWTAD-ARIN
RAbuseName:   tw telecom Abuse Desk
RAbusePhone:  +1-800-898-6473 
RAbuseEmail:  abuse@twtelecom.net
RAbuseRef:    http://whois.arin.net/rest/poc/TWTAD-ARIN

RTechHandle: ZT87-ARIN
RTechName:   IP Manager
RTechPhone:  +1-800-829-0420 
RTechEmail:  ipmanager@twtelecom.net
RTechRef:    http://whois.arin.net/rest/poc/ZT87-ARIN