ASN Lookup Tool

Online Computer Library Center ans.net US US 19 Routes

AS Data

AS4373

AS4373 – Online Computer Library Center

AS Number 4373
AS Name OCLC-AS
Organization Online Computer Library Center(oclc-1)
Country US
Website ans.net
Number of IPv4 Routes 19
Number of IPv6 Routes 0
ASN type BUSINESS
Registry ARIN
Date Allocated 1995-02-08

ASN Intelligence API for production workflows

Use ASN data for AS4373 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

Access complete peers, upstreams, downstreams, routes, WHOIS, and contact intelligence via our API. Learn more

Get ASN API Key ASN API Docs

IP Ranges

Route # IPs
198.137.191.0/24 256
204.152.100.0/22 1024
192.156.252.0/24 256
204.152.104.0/24 256
204.17.227.0/24 256
193.240.184.0/24 256
132.174.182.0/24 256
198.187.191.0/24 256
154.59.124.0/23 512
38.117.94.0/24 256

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:       4373
ASName:         OCLC-AS
ASHandle:       AS4373
RegDate:        1995-02-08
Updated:        1995-02-08    
Ref:            https://rdap.arin.net/registry/autnum/4373


OrgName:        Online Computer Library Center
OrgId:          OCLC-1
Address:        6565 Frantz Rd
City:           Dublin
StateProv:      OH
PostalCode:     43017
Country:        US
RegDate:        1995-02-08
Updated:        2011-09-24
Ref:            https://rdap.arin.net/registry/entity/OCLC-1


OrgAbuseHandle: ANS-NOC-ARIN
OrgAbuseName:   ANS CORE Systems Inc
OrgAbusePhone:  +1-800-456-6300 
OrgAbuseEmail:  noc@ans.net
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ANS-NOC-ARIN

OrgTechHandle: ANS-NOC-ARIN
OrgTechName:   ANS CORE Systems Inc
OrgTechPhone:  +1-800-456-6300 
OrgTechEmail:  noc@ans.net
OrgTechRef:    https://rdap.arin.net/registry/entity/ANS-NOC-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

Peers

AS Number Description Country
AS13335 Cloudflare, Inc. US
AS15830 Equinix EMEA Acquisition Enterprises B.V. NL
AS15830 Equinix (EMEA) Acquisition Enterprises B.V. NL
AS286 GTT Communications Inc. NL
AS286 GTT Communications Inc. US
AS3257 GTT Communications Inc. US
AS3356 Level 3 Parent, LLC US
AS174 Cogent Communications, LLC US

Upstreams

AS Number Description Country
AS13335 Cloudflare, Inc. US
AS15830 Equinix EMEA Acquisition Enterprises B.V. NL
AS286 GTT Communications Inc. US
AS3257 GTT Communications Inc. US
AS3356 Level 3 Parent, LLC US
AS174 Cogent Communications, LLC US

Ready to get started?Get Started with IP Intelligence API Today

Get Started
CTA Illustration

Frequently Asked Questions

ASN AS4373 is an Autonomous System Number used to identify a network for BGP internet routing.
AS4373 is listed under Online Computer Library Center.
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.