ASN Lookup Tool

CenturyLink Communications, LLC centurylink.com US US 91 Routes

AS Data

AS5778

AS5778 – CenturyLink Communications, LLC

AS Number 5778
AS Name CENTURYLINK-LEGACY-EMBARQ-RCMT
Organization CenturyLink Communications, LLC (ccl-534)
Country US
Website centurylink.com
Number of IPv4 Routes 91
Number of IPv6 Routes 0
ASN type ISP
Registry ARIN
Date Allocated 1995-10-18

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IP Ranges

Route # IPs
71.0.112.0/20 4096
69.68.176.0/21 2048
69.68.64.0/19 8192
71.0.176.0/20 4096
184.2.48.0/20 4096
184.3.144.0/20 4096
67.77.48.0/21 2048
207.43.190.0/23 512
208.27.112.0/20 4096
205.245.96.0/21 2048
67.239.128.0/20 4096
184.2.32.0/20 4096
207.12.233.0/24 256
208.17.64.0/22 1024
69.68.232.0/21 2048
67.77.208.0/20 4096
65.162.186.0/24 256
65.41.232.0/22 1024
74.4.224.0/21 2048
184.7.16.0/20 4096
67.76.96.0/21 2048
63.168.58.0/24 256
208.1.224.0/24 256
208.17.72.0/23 512
208.11.0.0/21 2048
65.40.104.0/21 2048
208.25.240.0/20 4096
69.69.208.0/21 2048
63.162.197.0/24 256
65.162.200.0/22 1024
76.7.64.0/20 4096
67.76.46.0/24 256
71.2.30.0/23 512
71.2.232.0/21 2048
207.14.224.0/20 4096
67.77.128.0/20 4096
69.34.120.0/22 1024
63.165.148.0/24 256
69.69.48.0/20 4096
71.48.192.0/19 8192
65.167.193.0/24 256
206.107.96.0/20 4096
65.41.32.0/20 4096
71.2.16.0/20 4096
208.6.32.0/19 8192
184.1.64.0/20 4096
208.1.78.0/24 256
208.34.224.0/20 4096
65.40.80.0/20 4096
184.1.176.0/20 4096
208.7.220.0/24 256
208.1.232.0/24 256
184.0.176.0/20 4096
69.69.176.0/21 2048
208.1.217.0/24 256
65.173.72.0/22 1024
138.210.162.0/23 512
205.240.32.0/22 1024
71.1.16.0/20 4096
205.244.200.0/21 2048

Raw Whois Response

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#


ASNumber:       5778
ASName:         CENTURYLINK-LEGACY-EMBARQ-RCMT
ASHandle:       AS5778
RegDate:        1995-10-18
Updated:        2018-08-14
Ref:            https://rdap.arin.net/registry/autnum/5778


OrgName:        CenturyLink Communications, LLC
OrgId:          CCL-534
Address:        100 CENTURYLINK DR
City:           Monroe
StateProv:      LA
PostalCode:     71201
Country:        US
RegDate:        2018-07-12
Updated:        2026-04-22
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:        
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:        
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:        
Comment:        Our looking glass is located at: https://lookingglass.centurylink.com/
Comment:        
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:        
Comment:        For abuse issues, please email abuse@aup.lumen.com
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.
Ref:            https://rdap.arin.net/registry/entity/CCL-534


OrgRoutingHandle: RPKIR-ARIN
OrgRoutingName:   RPKI-ROA
OrgRoutingPhone:  +1-877-886-6515 
OrgRoutingEmail:  rpki-roa@lumen.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/RPKIR-ARIN

OrgAbuseHandle: CAD54-ARIN
OrgAbuseName:   Centurylink Abuse Desk
OrgAbusePhone:  +1-877-886-6515 
OrgAbuseEmail:  abuse@aup.lumen.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/CAD54-ARIN

OrgTechHandle: QIA-ARIN
OrgTechName:   Centurylink IP Admin
OrgTechPhone:  +1-877-886-6515 
OrgTechEmail:  ipadmin@centurylink.com
OrgTechRef:    https://rdap.arin.net/registry/entity/QIA-ARIN


#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#

Parsed Whois Response

Peers

AS Number Description Country
AS22561 CenturyLink Communications, LLC US

Upstreams

AS Number Description Country
AS22561 CenturyLink Communications, LLC US

Contacts

Email Contacts

rpki-roa@lumen.com ipadmin@centurylink.com

Abuse Contacts

abuse@aup.lumen.com

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Frequently Asked Questions

ASN AS5778 is an Autonomous System Number used to identify a network for BGP internet routing.
AS5778 is listed under CenturyLink Communications, LLC.
Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.
Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.
WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.
This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.