What is ASN AS397489?

ASN AS397489 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS397489?

AS397489 is listed under Matthews Book Company.

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?

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AS397489 Matthews Book Company

ASN Lookup Tool

Matthews Book Company matthewsbooks.com

US 1 Routes

AS Data

AS397489

AS397489 – Matthews Book Company

AS Number	397489
AS Name	MATTHEWS-209
Organization	Matthews Book Company(mb-523)
Country	US
Website	matthewsbooks.com
Number of IPv4 Routes	1
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2019-04-16

ASN Intelligence API for production workflows

Use ASN data for AS397489 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
209.16.138.0/24	AS397489	Matthews Book Company	Matthews Book Company	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:       397489
ASName:         MATTHEWS-209
ASHandle:       AS397489
RegDate:        2019-04-16
Updated:        2019-04-16    
Ref:            https://rdap.arin.net/registry/autnum/397489


OrgName:        Matthews Book Company
OrgId:          MB-523
Address:        11559 Rock Island Court
City:           Maryland Heights
StateProv:      MO
PostalCode:     63043
Country:        US
RegDate:        2018-11-15
Updated:        2022-06-10
Ref:            https://rdap.arin.net/registry/entity/MB-523


OrgTechHandle: ARINA251-ARIN
OrgTechName:   ARIN admins
OrgTechPhone:  +1-314-432-1400 
OrgTechEmail:  arin@matthewsbooks.com
OrgTechRef:    https://rdap.arin.net/registry/entity/ARINA251-ARIN

OrgNOCHandle: RBA78-ARIN
OrgNOCName:   Barrett, Ryan 
OrgNOCPhone:  +1-314-432-1401 
OrgNOCEmail:  ryanb@mattmccoy.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/RBA78-ARIN

OrgNOCHandle: ARINA251-ARIN
OrgNOCName:   ARIN admins
OrgNOCPhone:  +1-314-432-1400 
OrgNOCEmail:  arin@matthewsbooks.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/ARINA251-ARIN

OrgTechHandle: RBA78-ARIN
OrgTechName:   Barrett, Ryan 
OrgTechPhone:  +1-314-432-1401 
OrgTechEmail:  ryanb@mattmccoy.com
OrgTechRef:    https://rdap.arin.net/registry/entity/RBA78-ARIN

OrgAbuseHandle: RBA78-ARIN
OrgAbuseName:   Barrett, Ryan 
OrgAbusePhone:  +1-314-432-1401 
OrgAbuseEmail:  ryanb@mattmccoy.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/RBA78-ARIN

OrgAbuseHandle: ARINA251-ARIN
OrgAbuseName:   ARIN admins
OrgAbusePhone:  +1-314-432-1400 
OrgAbuseEmail:  arin@matthewsbooks.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ARINA251-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
AS7018	AT&T Enterprises, LLC	US
AS22677	Charter Communications LLC	US

Upstreams

AS Number	Description	Country
AS7018	AT&T Enterprises, LLC	US
AS22677	Charter Communications LLC	US