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	Prefix	Description
	128.32.0.0/16	University of California at Berkeley
	136.152.0.0/16	University of California at Berkeley
	169.229.176.0/20	University of California - Office of the President
	169.236.240.0/21	University of California, Merced
	192.12.234.0/24	University of California at Berkeley
	192.35.209.0/24	University of California - Office of the President
	192.150.186.0/23
	192.154.4.0/23
	192.154.6.0/24	University of California at Berkeley
	208.68.240.0/22	SETIATHOME
	67.21.36.0/24	ICSI
	169.229.0.0/16	University of California - Office of the President
	2607:f140::/32	University of California at Berkeley
	2607:f140:e000::/48	University of California at Berkeley

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS2152	CENIC - CalREN	✔	✔

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Peers

	ASN	Description	IPv4	IPv6
	AS2152	CENIC - CalREN	✔	✔

ASHandle:       AS25
OrgID:          UCAB-1-Z
ASName:         UCB
ASNumber:       25
RegDate:        1984-08-03
Comment:        DMCA Designated Agent is policy@berkeley.edu
Updated:        2023-12-14
TechHandle:     UCB-NOC-ARIN
NOCHandle:      UCB-NOC-ARIN
Source:         ARIN



OrgID:          UCAB-1-Z
OrgName:        University of California at Berkeley
CanAllocate:    
Street:         IST - Telecommunications
Street:         ATTN Network Services and Operations
Street:         2850 Telegraph Ave
Street:         NOTE See Comment for DMCA INFO
City:           Berkeley
State/Prov:     CA
Country:        US
PostalCode:     94705
Comment:        DMCA Designated Agent is dmca@berkeley.edu
RegDate:        2010-01-13
Updated:        2023-07-20
OrgAdminHandle: UCB-NOC-ARIN
OrgTechHandle:  UCB-NOC-ARIN
OrgAbuseHandle: UCBSE-ARIN
OrgNOCHandle:   UCB-NOC-ARIN
Source:         ARIN





OrgAdminHandle:       UCB-NOC-ARIN
OrgAdminName:          IST Communication and Network Services
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        UCB-NOC-ARIN
OrgTechName:           IST Communication and Network Services
# Email removed, Log into bgp.tools to see whois emails


OrgAbuseHandle:       UCBSE-ARIN
OrgAbuseName:          UCB-SECURIT-ARIN
# Email removed, Log into bgp.tools to see whois emails


OrgNOCHandle:         UCB-NOC-ARIN
OrgNOCName:            IST Communication and Network Services
# Email removed, Log into bgp.tools to see whois emails


TechHandle:           UCB-NOC-ARIN
TechName:              IST Communication and Network Services
# Email removed, Log into bgp.tools to see whois emails


NOCHandle:            UCB-NOC-ARIN
NOCName:               IST Communication and Network Services
# Email removed, Log into bgp.tools to see whois emails

Last Update: 2025-12-26T03:37:16Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
RADB	as198949:as-sd	3765
LEVEL3	as-level3-origins-na	0
RADB	as-calren2	288
RADB	as174:as-cogc-014	39
RADB	as-ucnet	11
RADB	as16631:as-cogc-007	66
RADB	as-hurricanev6	20179
ARIN	as293:as-from-singaren-to-esnet	4548