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	Prefix	Description
	128.117.0.0/16	National Center for Atmospheric Research
	192.43.244.0/24	National Center for Atmospheric Research
	192.52.106.0/24	National Center for Atmospheric Research
	2620:117:2000::/40	National Center for Atmospheric Research
	2620:117:20f1::/48	National Center for Atmospheric Research

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS14041	University Corporation for Atmospheric Research	✔	✔

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Peers

	ASN	Description	IPv4	IPv6
	AS14041	University Corporation for Atmospheric Research	✔	✔

ASHandle:       AS194
OrgID:          UCAR-1
ASName:         UCAR-AS
ASNumber:       194
RegDate:        1988-05-26
Updated:        2026-02-19
Source:         ARIN



OrgID:          UCAR-1
OrgName:        University Corporation for Atmospheric Research
CanAllocate:    
Street:         3090 Center Green Drive
City:           Boulder
State/Prov:     CO
Country:        US
PostalCode:     80301
RegDate:        1988-05-26
Updated:        2026-02-19
OrgAdminHandle: MEEHL5-ARIN
OrgTechHandle:  ADLER49-ARIN
OrgTechHandle:  HERNA1265-ARIN
OrgAbuseHandle: ABUSE18-ARIN
OrgNOCHandle:   ZN10-ARIN
Source:         ARIN





OrgAdminHandle:       MEEHL5-ARIN
OrgAdminName:         Marla Meehl
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        ADLER49-ARIN
OrgTechName:          Matt Adler
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        HERNA1265-ARIN
OrgTechName:          John Hernandez
# Email removed, Log into bgp.tools to see whois emails


OrgAbuseHandle:       ABUSE18-ARIN
OrgAbuseName:          Abuse
# Email removed, Log into bgp.tools to see whois emails


OrgNOCHandle:         ZN10-ARIN
OrgNOCName:            National Center for Atmospheric Research
# Email removed, Log into bgp.tools to see whois emails

Last Update: 2026-03-13T03:27:18Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
RADB	as-calrendc	293
RADB	as-frgp	57
LEVEL3	as-icg	83
LEVEL3	as-level3-origins-na	0
RADB	as-calren2	263
RIPE	as-example-test	4