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	Prefix	Description
	64.239.128.0/18	Tierzero
	66.6.208.0/20	Tierzero
	72.18.0.0/19	Tierzero
	162.142.73.0/24	THE WHEEL AND TIRE CLUB, INC
	208.179.0.0/16	Tierzero
	216.31.128.0/20	Tierzero
	216.31.144.0/22	Tierzero
	216.31.148.0/24	Tierzero
	216.31.149.0/24	Tierzero
	216.31.150.0/23	Tierzero
	216.31.152.0/21	Tierzero
	216.31.160.0/19	Tierzero
	216.116.96.0/23	Tierzero
	216.116.99.0/24	Tier Zero
	216.116.100.0/22	Tierzero
	216.116.104.0/21	Tierzero
	216.116.112.0/21	Tierzero
	216.116.120.0/22	Tierzero
	216.116.124.0/23	Tierzero
	216.116.126.0/24	Graphix Media
	2604:4bc0::/36	Tierzero

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS1299	Arelion (fka. Telia Carrier)	✔	✔
	AS6461	Zayo Bandwidth	✔	✔

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Peers

	ASN	Description	IPv4	IPv6
	AS1299	Arelion (fka. Telia Carrier)	✔	✔
	AS6461	Zayo Bandwidth	✔	✔

ASHandle:       AS11509
OrgID:          TIERZ
ASName:         
ASNumber:       11509
RegDate:        1998-09-15
Updated:        2012-02-24
Source:         ARIN



OrgID:          TIERZ
OrgName:        Tierzero
CanAllocate:    
Street:         77 N Mentor Ave
City:           Pasadena
State/Prov:     CA
Country:        US
PostalCode:     91106
RegDate:        2004-05-21
Updated:        2024-11-25
OrgAdminHandle: ADMIN368-ARIN
OrgTechHandle:  TECHT-ARIN
OrgAbuseHandle: ABUSE3154-ARIN
Source:         ARIN





OrgAdminHandle:       ADMIN368-ARIN
OrgAdminName:          ADMIN-TIERZERO
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        TECHT-ARIN
OrgTechName:           TECH-TIERZERO
# Email removed, Log into bgp.tools to see whois emails


OrgAbuseHandle:       ABUSE3154-ARIN
OrgAbuseName:          Abuse Department
# Email removed, Log into bgp.tools to see whois emails

Last Update: 2026-03-13T03:26:20Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
LEVEL3	as-as22911	121
RADB	as-viawest-transit	320
RADB	as-flexential-customers	350
RADB	as-btn-customers	1495
RADB	as-pnaplax	300
RADB	as-tierzero	8
LEVEL3	as-sprint-origins	7309
RIPE	as-gblx	966
RADB	as-flexential-test2	278
LEVEL3	as-as23005	321
RADB	as-tz	1