ASN AS18742 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS18742?

AS18742 is listed under ON24, Inc..

What do peers, upstreams, and downstreams mean in ASN data?

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 shown for an ASN?

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

How can I access the full ASN tables?

The page shows a preview of large ASN datasets. Use the page controls to load more rows, and upgrade to a paid plan for complete access.

AS18742 ON24, Inc. | IPGeolocation.io

ASN Lookup Tool

ON24, Inc. on24.com

US 3 Routes

AS Data

AS18742

AS18742 – ON24, Inc.

AS Number	18742
AS Name	ON24-SAC
Organization	ON24, Inc.(on24i-2)
Country	US
Website	on24.com
Number of IPv4 Routes	3
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2007-08-02

ASN Intelligence API for production workflows

Use ASN data for AS18742 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	Origin	Origin Name	ISP	# IPs
199.83.44.0/22	AS18742	ON24, Inc.	ON24, Inc.	1024
199.83.46.0/24	AS18742	ON24, Inc.	ON24, Inc.	256
199.83.47.0/24	AS18742	ON24, Inc.	ON24, Inc.	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:       18742
ASName:         ON24-SAC
ASHandle:       AS18742
RegDate:        2007-08-02
Updated:        2013-02-08    
Ref:            https://rdap.arin.net/registry/autnum/18742


OrgName:        ON24, Inc.
OrgId:          ON24I-2
Address:        795 Folsom Street
Address:        3rd Fl
City:           San Francisco
StateProv:      CA
PostalCode:     94103
Country:        US
RegDate:        2007-05-15
Updated:        2016-12-20
Ref:            https://rdap.arin.net/registry/entity/ON24I-2


OrgTechHandle: TECHS61-ARIN
OrgTechName:   Tech Support
OrgTechPhone:  +1-415-310-5201 
OrgTechEmail:  sysmgr@on24.com
OrgTechRef:    https://rdap.arin.net/registry/entity/TECHS61-ARIN

OrgNOCHandle: TECHS61-ARIN
OrgNOCName:   Tech Support
OrgNOCPhone:  +1-415-310-5201 
OrgNOCEmail:  sysmgr@on24.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/TECHS61-ARIN

OrgAbuseHandle: TECHS61-ARIN
OrgAbuseName:   Tech Support
OrgAbusePhone:  +1-415-310-5201 
OrgAbuseEmail:  sysmgr@on24.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/TECHS61-ARIN

RTechHandle: TECHS61-ARIN
RTechName:   Tech Support
RTechPhone:  +1-415-310-5201 
RTechEmail:  sysmgr@on24.com
RTechRef:    https://rdap.arin.net/registry/entity/TECHS61-ARIN

RAbuseHandle: TECHS61-ARIN
RAbuseName:   Tech Support
RAbusePhone:  +1-415-310-5201 
RAbuseEmail:  sysmgr@on24.com
RAbuseRef:    https://rdap.arin.net/registry/entity/TECHS61-ARIN

RNOCHandle: TECHS61-ARIN
RNOCName:   Tech Support
RNOCPhone:  +1-415-310-5201 
RNOCEmail:  sysmgr@on24.com
RNOCRef:    https://rdap.arin.net/registry/entity/TECHS61-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
AS3356	Level 3 Parent, LLC	US
AS6461	Zayo Bandwidth	US
AS174	Cogent Communications, LLC	US

Upstreams

AS Number	Description	Country
AS3356	Level 3 Parent, LLC	US
AS6461	Zayo Bandwidth	US
AS174	Cogent Communications, LLC	US