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	Prefix	Description
	65.144.124.0/24	CenturyLink Communications, LLC
	199.248.197.0/24	Selective Service System
	208.68.144.0/21	Export Import Bank of the U.S
	2602:814:9000::/44	Selective Service System
	2620:0:960::/48	Export Import Bank of the U.S

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS209	Lumen (ex. Qwest)	✔	✔

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Peers

	ASN	Description	IPv4	IPv6
	AS209	Lumen (ex. Qwest)	✔	✔
	AS4155	USDA	✔	✔
	AS395700	Executive Office Of The President	✔	✔
	AS3930	Federal Energy Regulatory Commission	✔	✘
	AS102	U.S. National Science Foundation	✔	✔
	AS11724	Comptroller of the Currency	✔	✘
	AS53554	National Credit Union Administration	✔	✘
	AS39983	Pension Benefit Guaranty Corp.	✔	✘

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Downstreams

	ASN	Description	IPv4	IPv6
	AS4155	USDA	✔	✔
	AS3930	Federal Energy Regulatory Commission	✔	✘
	AS102	U.S. National Science Foundation	✔	✔
	AS11724	Comptroller of the Currency	✔	✘
	AS53554	National Credit Union Administration	✔	✘
	AS39983	Pension Benefit Guaranty Corp.	✔	✘
	AS395700	Executive Office Of The President	✔	✔

ASHandle:       AS6223
OrgID:          CCL-534
ASName:         CENTURYLINK-MTIPS1-STN
ASNumber:       6223
RegDate:        1996-01-25
Updated:        2020-10-20
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 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.
RegDate:        2018-07-12
Updated:        2026-04-22
OrgAdminHandle: QIA-ARIN
OrgTechHandle:  QIA-ARIN
OrgAbuseHandle: CAD54-ARIN
OrgRoutingHandle:   RPKIR-ARIN
Source:         ARIN





OrgAdminHandle:       QIA-ARIN
OrgAdminName:          Centurylink IP Admin
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        QIA-ARIN
OrgTechName:           Centurylink IP Admin
# Email removed, Log into bgp.tools to see whois emails


OrgAbuseHandle:       CAD54-ARIN
OrgAbuseName:          Centurylink Abuse Desk
# Email removed, Log into bgp.tools to see whois emails


OrgRoutingHandle:     RPKIR-ARIN
OrgRoutingName:        RPKI-ROA
# Email removed, Log into bgp.tools to see whois emails

Last Update: 2026-06-10T03:37:49Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
LEVEL3	as-lumen-asns	132
LEVEL3	as-lumen-customers-asns	10695