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	Prefix	Description
	156.74.248.0/21	City of Seattle
	156.74.248.0/22	City of Seattle
	156.74.252.0/22	City of Seattle

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS174	Cogent Communications	✔	✘
	AS3356	Lumen (Level 3)	✔	✘
	AS6461	Zayo Bandwidth	✔	✘

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Peers

	ASN	Description	IPv4	IPv6
	AS174	Cogent Communications	✔	✘
	AS3356	Lumen (Level 3)	✔	✘
	AS6461	Zayo Bandwidth	✔	✘

ASHandle:       AS3401
OrgID:          CSDAS
ASName:         SEATTLE
ASNumber:       3401
RegDate:        1994-02-04
Updated:        2013-12-18
TechHandle:     HAGEN17-ARIN
TechHandle:     IIT10-ARIN
AbuseHandle:    IIT10-ARIN
NOCHandle:      IIT10-ARIN
Source:         ARIN



OrgID:          CSDAS
OrgName:        City of Seattle, Dept. of Admin. Services
CanAllocate:    
Street:         700 5th Ave
City:           Seattle
State/Prov:     WA
Country:        US
PostalCode:     98104
RegDate:        1994-02-04
Updated:        2013-12-18
OrgAdminHandle: IIT10-ARIN
OrgTechHandle:  IIT10-ARIN
OrgAbuseHandle: IIT10-ARIN
Source:         ARIN





OrgAdminHandle:       IIT10-ARIN
OrgAdminName:          Internet Infrastructure Team
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        IIT10-ARIN
OrgTechName:           Internet Infrastructure Team
# Email removed, Log into bgp.tools to see whois emails


OrgAbuseHandle:       IIT10-ARIN
OrgAbuseName:          Internet Infrastructure Team
# Email removed, Log into bgp.tools to see whois emails


TechHandle:           HAGEN17-ARIN
TechName:             Kenneth Hagen
# Email removed, Log into bgp.tools to see whois emails


TechHandle:           IIT10-ARIN
TechName:              Internet Infrastructure Team
# Email removed, Log into bgp.tools to see whois emails


AbuseHandle:          IIT10-ARIN
AbuseName:             Internet Infrastructure Team
# Email removed, Log into bgp.tools to see whois emails


NOCHandle:            IIT10-ARIN
NOCName:               Internet Infrastructure Team
# Email removed, Log into bgp.tools to see whois emails

Last Update: 2025-04-24T03:28:20Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
RADB	as-hopone	12
LEVEL3	as-level3-customers-na	0
RADB	as-cos-transit	3
RIPE	as-seattleix-rs-clients	95065
LEVEL3	as-sprint-origins	7309
LEVEL3	as-level3-origins-na	0
RADB	as-ctbc-customers88	50