ASN Lookup Tool

CENIC cenic.org US US 0 Routes

AS Data

AS2151

AS2151 – CENIC

AS Number 2151
AS Name CENIC-2151
Organization CENIC(cenic)
Country US
Website cenic.org
Number of IPv4 Routes 0
Number of IPv6 Routes 0
ASN type ISP
Registry ARIN
Date Allocated 2024-07-08

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Use ASN data for AS2151 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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Raw Whois Response

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#


ASNumber:       2151
ASName:         CENIC-2151
ASHandle:       AS2151
RegDate:        2024-07-08
Updated:        2024-07-08    
Ref:            https://rdap.arin.net/registry/autnum/2151


OrgName:        CENIC
OrgId:          CENIC
Address:        5757 Plaza Drive, Suite 205
City:           Cypress
StateProv:      CA
PostalCode:     90630-5029
Country:        US
RegDate:        1998-08-18
Updated:        2024-11-25
Ref:            https://rdap.arin.net/registry/entity/CENIC


OrgAbuseHandle: ABUSE711-ARIN
OrgAbuseName:   CENIC Abuse
OrgAbusePhone:  +1-714-220-3494 
OrgAbuseEmail:  abuse@cenic.org
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE711-ARIN

OrgTechHandle: OPERA63-ARIN
OrgTechName:   Admin Domain
OrgTechPhone:  +1-714-220-3494 
OrgTechEmail:  core-ext@lists.cenic.org
OrgTechRef:    https://rdap.arin.net/registry/entity/OPERA63-ARIN


#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#

Parsed Whois Response

Contacts

Email Contacts

core-ext@lists.cenic.org

Abuse Contacts

abuse@cenic.org

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Frequently Asked Questions

ASN AS2151 is an Autonomous System Number used to identify a network for BGP internet routing.
AS2151 is listed under CENIC.
Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.
Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.
WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.
This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.