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	Prefix	Description
	12.38.68.0/24
	108.59.225.0/24	Buddhist Tzu Chi Foundation

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS7018	AT&T Enterprises, LLC	✔	✘
	AS20001	Charter Communications Inc	✔	✘

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Peers

	ASN	Description	IPv4	IPv6
	AS20001	Charter Communications Inc	✔	✘
	AS7018	AT&T Enterprises, LLC	✔	✘

ASHandle:       AS15007
OrgID:          TCF-12
ASName:         TZUCHI
ASNumber:       15007
RegDate:        2005-05-19
Updated:        2019-11-01
TechHandle:     CHENG95-ARIN
TechHandle:     MT173-ARIN
Source:         ARIN



OrgID:          TCF-12
OrgName:        Buddhist Tzu Chi Foundation
CanAllocate:    
Street:         1100 South Valley Center Ave.
City:           San Dimas
State/Prov:     CA
Country:        US
PostalCode:     91773
RegDate:        2005-04-28
Updated:        2019-11-01
OrgAdminHandle: CHENG95-ARIN
OrgTechHandle:  CHENG95-ARIN
OrgAbuseHandle: CHENG95-ARIN
OrgNOCHandle:   CHENG95-ARIN
OrgRoutingHandle:   CHENG95-ARIN
OrgDNSHandle:   CHENG95-ARIN
Source:         ARIN





OrgAdminHandle:       CHENG95-ARIN
OrgAdminName:         Keng Cheng
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        CHENG95-ARIN
OrgTechName:          Keng Cheng
# Email removed, Log into bgp.tools to see whois emails


OrgAbuseHandle:       CHENG95-ARIN
OrgAbuseName:         Keng Cheng
# Email removed, Log into bgp.tools to see whois emails


OrgNOCHandle:         CHENG95-ARIN
OrgNOCName:           Keng Cheng
# Email removed, Log into bgp.tools to see whois emails


OrgRoutingHandle:     CHENG95-ARIN
OrgRoutingName:       Keng Cheng
# Email removed, Log into bgp.tools to see whois emails


OrgDNSHandle:         CHENG95-ARIN
OrgDNSName:           Keng Cheng
# Email removed, Log into bgp.tools to see whois emails


TechHandle:           CHENG95-ARIN
TechName:             Keng Cheng
# Email removed, Log into bgp.tools to see whois emails


TechHandle:           MT173-ARIN
TechName:             Michael Tsai
# Email removed, Log into bgp.tools to see whois emails

Last Update: 2025-12-24T03:32:09Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
LEVEL3	as-level3-origins-na	0
LEVEL3	as-lumen-customers-asns	10695
LEVEL3	as-as209-cust	1818
RADB	as-rr-biz	2081
RADB	as-hurricane	24736