168.251.0.0/18

AS4911  ·  CenturyLink Communications, LLC

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Summary

Country United States
Domain centurylink.com
ASN AS4911
Parent Range 168.251.0.0/16
Registry ARIN
ID CENTURYLINK-LEGACY-EMBARQ-BKL-13

WHOIS Details

NetHandle:      NET-168-251-0-0-1
OrgID:          CCL-534
Parent:         NET-168-0-0-0-0
NetName:        CENTURYLINK-LEGACY-EMBARQ-BKL-13
NetRange:       168.251.0.0 - 168.251.255.255
NetType:        allocation
RegDate:        1994-10-17
Updated:        2018-05-02
Source:         ARIN


OrgID:          CCL-534
OrgName:        CenturyLink Communications, LLC
CanAllocate:    
Street:         100 CENTURYLINK DR
City:           Monroe
State/Prov:     LA
Country:        US
PostalCode:     71201
Comment:        USAGE OF IP SPACE MUST COMPLY WITH OUR ACCEPTABLE USE POLICY:
Comment:        https://www.lumen.com/en-us/about/legal/acceptable-use-policy.html
Comment:        ADDRESSES COVERED BY THIS ORG-ID ARE NON-PORTABLE ANY ISP ANNOUNCING OR TRANSITING PORTIONS WITHIN OUR RANGES SHOULD NOT RELY ON PRESENTED LOA'S OR OLD WHOIS UNLESS THOSE RANGES ARE ALSO ACTIVELY DIRECTLY ANNOUNCED TO A LUMEN ASN. WITH ALL LOA'S THESE CONDITIONS APPLY:
Comment:        1. You are permitted to route the Lumen IP prefixes listed via Public BGP to your alternate ISP from the designated ASN. Any other ASN originating the prefix listed is forbidden.
Comment:        2. The Lumen IP prefixes listed can be routed via Public BGP to your alternate ISP as long as you remain an active customer with Lumen and continue to route the prefixes over at least one Lumen Internet circuit without significant traffic engineering.
Comment:        3. Should your Internet services with Lumen be discontinued, Lumen reserves the right to have your alternate ISP terminate the routing of the Lumen IP prefixes without advanced notification, should you fail to do so.
Comment:        4. All IP Addresses assigned or allocated by Lumen to an end-user (customer or ISP) shall be considered non-portable and will be reclaimed by Lumen upon service termination.
Comment:        5. Lumen reserves the right to conduct audits to ensure the LOA conditions are being met.
Comment:        6. Usage of IP space must comply with our AUP https://www.lumen.com/en-us/about/legal/acceptable-use-policy.html
Comment:        Our looking glass is located at: https://lookingglass.centurylink.com/
Comment:        For subpoena or court order please fax 844.254.5800 or refer to our Trust & Safety page:
Comment:        https://www.lumen.com/en-us/about/legal/trust-center/trust-and-safety.html
Comment:        For abuse issues, please email [email protected]
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.
RegDate:        2018-07-12
Updated:        2024-06-17
OrgAdminHandle: QIA-ARIN
OrgTechHandle:  QIA-ARIN
OrgAbuseHandle: CAD54-ARIN
OrgRoutingHandle:   RPKIR-ARIN
Source:         ARIN


POCHandle:      QIA-ARIN
IsRole:         Y
LastName:       Centurylink IP Admin
FirstName:      
Street:         100 CENTURYLINK DR
City:           Monroe
State/Prov:     LA
Country:        US
PostalCode:     71201
RegDate:        2002-08-24
Updated:        2025-02-14
OfficePhone:    +1-877-886-6515
Mailbox:        [email protected]
Source:         ARIN


POCHandle:      CAD54-ARIN
IsRole:         Y
LastName:       Centurylink Abuse Desk
FirstName:      
Street:         100 CENTURYLINK DR
City:           Monroe
State/Prov:     LA
Country:        US
PostalCode:     71203
RegDate:        2015-04-10
Updated:        2025-08-25
OfficePhone:    +1-877-886-6515
Mailbox:        [email protected]
Source:         ARIN

Overlapping Ranges

BGP prefixes that contain 168.251.0.0/18

Range ASN Company Num of IPs
168.251.0.0/16 AS209 CenturyLink Communications, LLC 65,536
168.251.0.0/16 AS4911 CenturyLink Communications, LLC 65,536

Nearby Ranges

BGP prefixes that overlap with 168.251.0.0/16

Range ASN Company Num of IPs
168.251.0.0/16 AS209 CenturyLink Communications, LLC 65,536
168.251.0.0/16 AS4911 CenturyLink Communications, LLC 65,536

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

Pingable IPs

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

IP Address ASN Details
168.251.3.24 AS4911 CenturyLink Communications, LLC 13.22ms from Dallas, US
168.251.47.4 AS4911 CenturyLink Communications, LLC 13.58ms from Dallas, 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
159.192.6.50 AS131090 National Telecom Public Company Limited 0.33ms from Bangkok, TH
101.16.134.146 AS4837 CHINA UNICOM China169 Backbone 8.21ms from Beijing, CN
217.154.169.162 AS8560 IONOS SE 0.59ms from Berlin, DE
54.244.200.194 AS16509 Amazon.com, Inc. 0.16ms from Boardman, US
63.142.43.114 AS30036 Mediacom Communications Corp 6.88ms from Chicago, US
75.210.187.210 AS6167 Verizon Business 9.53ms from Chicago, US
91.129.4.18 AS1257 Tele2 Sverige AB 0.20ms from Goeteborg, SE
182.44.58.98 AS58519 Cloud Computing Corporation 0.46ms from Guiyang, CN
66.9.139.178 AS209342 NIC (National Information Center)- SDAIA ( Saudi Data and Artificial Intelligence Authority ) 12.94ms from Jeddah, SA
70.170.100.2 AS22773 Cox Communications Inc. 5.97ms from Los Angeles, US
62.211.181.18 AS3269 Telecom Italia S.p.A. 3.92ms from Milan, IT
39.75.176.162 AS4837 CHINA UNICOM China169 Backbone 4.80ms from Qingdao, CN
152.245.112.18 AS26599 TELEFÔNICA BRASIL S.A 8.21ms from Sao Paulo, BR
114.182.45.146 AS4713 NTT DOCOMO BUSINESS,Inc. 7.46ms from Tokyo, JP
203.155.112.242 AS7693 KSC Commercial Internet Co. Ltd. 1.85ms from Bangkok, TH
177.43.64.178 AS18881 TELEFÔNICA BRASIL S.A 1.28ms from Brasilia, BR
18.219.37.98 AS16509 Amazon.com, Inc. 0.20ms from Columbus, US
169.48.64.226 AS36351 IBM Cloud 1.13ms from Dallas, US
217.7.184.114 AS3320 Deutsche Telekom AG 4.00ms from Duesseldorf, DE
194.59.59.210 AS56630 Melbikomas UAB 0.13ms from Frankfurt am Main, DE
92.117.1.2 AS8881 1&1 Versatel GmbH 7.68ms from Frankfurt am Main, DE
122.164.92.34 AS24560 Bharti Airtel Ltd., Telemedia Services 2.00ms from Hyderabad, IN
81.147.13.226 AS2856 British Telecommunications PLC 6.82ms from London, GB
62.232.117.146 AS5413 Wavenet Limited 0.90ms from London, GB
34.154.249.210 AS396982 Google LLC 0.11ms from Milan, IT

Traceroute

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

$
traceroute -a -n -q1 -f4 -m10 168.251.32.37
traceroute to 168.251.32.37 (168.251.32.37): 10 hops max, 52 byte packets
4 [AS34718] 80.80.209.217 11.899 ms
5 *
8 *
9 *
10 *
Measurement taken from IPinfo ProbeNet in Tashkent, UZ
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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