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	Prefix	Description
	204.188.186.0/24	CenturyLink Communications, LLC
	208.156.64.0/23	CenturyLink Communications, LLC
	208.156.65.0/24	CenturyLink Communications, LLC
	208.156.66.0/24	CenturyLink Communications, LLC
	208.156.67.0/24	CenturyLink Communications, LLC
	209.27.15.0/24	Serco

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS3561	Lumen (ex. Savvis)	✔	✘

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Peers

	ASN	Description	IPv4	IPv6
	AS3561	Lumen (ex. Savvis)	✔	✘

ASHandle:       AS14524
OrgID:          SERCO-2
ASName:         SERCO-NA
ASNumber:       14524
RegDate:        2007-03-14
Comment:        http://www.serco-na.com
Updated:        2025-09-22
TechHandle:     SNNOC-ARIN
AbuseHandle:    SNNOC-ARIN
NOCHandle:      SNNOC-ARIN
Source:         ARIN



OrgID:          SERCO-2
OrgName:        SERCO NA
CanAllocate:    
Street:         2650 Park Tower Dr
City:           Vienna
State/Prov:     VA
Country:        US
PostalCode:     22180
Comment:        http://www.serco-na.com
RegDate:        2007-02-28
Updated:        2007-02-28
OrgAdminHandle: SNNOC-ARIN
OrgTechHandle:  SNNOC-ARIN
OrgAbuseHandle: SNNOC-ARIN
OrgNOCHandle:   SNNOC-ARIN
Source:         ARIN





OrgAdminHandle:       SNNOC-ARIN
OrgAdminName:          SERCO NA NETWORK OPERATIONS CENTER
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        SNNOC-ARIN
OrgTechName:           SERCO NA NETWORK OPERATIONS CENTER
# Email removed, Log into bgp.tools to see whois emails


OrgAbuseHandle:       SNNOC-ARIN
OrgAbuseName:          SERCO NA NETWORK OPERATIONS CENTER
# Email removed, Log into bgp.tools to see whois emails


OrgNOCHandle:         SNNOC-ARIN
OrgNOCName:            SERCO NA NETWORK OPERATIONS CENTER
# Email removed, Log into bgp.tools to see whois emails


TechHandle:           SNNOC-ARIN
TechName:              SERCO NA NETWORK OPERATIONS CENTER
# Email removed, Log into bgp.tools to see whois emails


AbuseHandle:          SNNOC-ARIN
AbuseName:             SERCO NA NETWORK OPERATIONS CENTER
# Email removed, Log into bgp.tools to see whois emails


NOCHandle:            SNNOC-ARIN
NOCName:               SERCO NA NETWORK OPERATIONS CENTER
# Email removed, Log into bgp.tools to see whois emails

Last Update: 2026-02-17T03:27:06Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
LEVEL3	as-level3-origins-na	0
ARIN	as19855:as-customers	134
LEVEL3	as-lumen-customers-asns	10695
LEVEL3	as-19855	139