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AS15228 O'Reilly Media, Inc. | IPGeolocation.io

Q: Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

ASN Lookup Tool

O'Reilly Media, Inc. oreilly.com

US 1 Routes

AS Data

AS15228

AS15228 – O'Reilly Media, Inc.

AS Number	15228
AS Name	OREILLYMEDIA-AS1
Organization	O'Reilly Media, Inc.(om-16)
Country	US
Website	oreilly.com
Number of IPv4 Routes	1
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2014-05-20

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Use ASN data for AS15228 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
199.27.144.0/23	AS15228	OReilly Media, Inc.	O'Reilly Media, Inc.	512

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:       15228
ASName:         OREILLYMEDIA-AS1
ASHandle:       AS15228
RegDate:        2014-05-20
Updated:        2014-05-20
Comment:        http://www.oreilly.com    
Ref:            https://rdap.arin.net/registry/autnum/15228


OrgName:        O'Reilly Media, Inc.
OrgId:          OM-16
Address:        141 Stony Circle, Suite 195
City:           Santa Rosa
StateProv:      CA
PostalCode:     95401
Country:        US
RegDate:        2012-03-02
Updated:        2026-01-09
Ref:            https://rdap.arin.net/registry/entity/OM-16


OrgAbuseHandle: ABUSE7237-ARIN
OrgAbuseName:   Abuse
OrgAbusePhone:  +1-707-827-7019 
OrgAbuseEmail:  abuse@oreilly.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE7237-ARIN

OrgNOCHandle: OREIL50-ARIN
OrgNOCName:   O'Reilly NOC
OrgNOCPhone:  +1-707-827-7000 
OrgNOCEmail:  noc@oreilly.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/OREIL50-ARIN

OrgTechHandle: OREIL50-ARIN
OrgTechName:   O'Reilly NOC
OrgTechPhone:  +1-707-827-7000 
OrgTechEmail:  noc@oreilly.com
OrgTechRef:    https://rdap.arin.net/registry/entity/OREIL50-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
AS46375	Sonic Telecom LLC	US

Upstreams

AS Number	Description	Country
AS46375	Sonic Telecom LLC	US

Contacts

Email Contacts

noc@oreilly.com

Abuse Contacts

abuse@oreilly.com

Frequently Asked Questions

What is ASN AS15228?

ASN AS15228 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS15228?

AS15228 is listed under O'Reilly Media, Inc..

What do peers, upstreams, and downstreams mean?

Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.

What are routes and IP ranges for an ASN?

Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.

Why is WHOIS data included here?

WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access full ASN table data?

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.