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	Prefix	Description
	204.102.229.0/24	Naval Postgraduate School
	205.155.65.0/24	CENIC
	2607:f380:804::/48	CENIC

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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	✔	✔
	AS2153	CENIC	✔	✘

ASHandle:       AS257
OrgID:          NNICN-1
ASName:         DNIC-AS-00257
ASNumber:       257
RegDate:        1988-12-22
Updated:        2011-07-05
Source:         ARIN



OrgID:          NNICN-1
OrgName:        Navy Network Information Center (NNIC)
CanAllocate:    
Street:         2465 GUADALCANAL ROAD
Street:         BLDG 1265
City:           VIRGINIA BEACH
State/Prov:     VA
Country:        US
PostalCode:     23459
RegDate:        2006-09-21
Updated:        2025-03-13
OrgAdminHandle: REGIS10-ARIN
OrgTechHandle:  REGIS10-ARIN
OrgAbuseHandle: REGIS10-ARIN
Source:         ARIN





OrgAdminHandle:       REGIS10-ARIN
OrgAdminName:          Registration
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        REGIS10-ARIN
OrgTechName:           Registration
# Email removed, Log into bgp.tools to see whois emails


OrgAbuseHandle:       REGIS10-ARIN
OrgAbuseName:          Registration
# Email removed, Log into bgp.tools to see whois emails

Last Update: 2026-03-13T03:26:51Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
RADB	as-calren2	263
RADB	as-hurricanev6	20659