ASN AS19197 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS19197?

AS19197 is listed under Stefanini, 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?

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AS19197 Stefanini, Inc. | IPGeolocation.io

ASN Lookup Tool

Stefanini, Inc. stefanini.com

US 16 Routes

AS Data

AS19197

AS19197 – Stefanini, Inc.

AS Number	19197
AS Name	STEFANINI-INC
Organization	Stefanini, Inc.(stefa-8)
Country	US
Website	stefanini.com
Number of IPv4 Routes	16
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2000-12-04

ASN Intelligence API for production workflows

Use ASN data for AS19197 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
69.41.47.0/24	AS19197	Stefanini, Inc.	Stefanini, Inc.	256
69.41.40.0/24	AS19197	Stefanini, Inc.	Stefanini, Inc.	256
69.41.58.0/24	AS19197	Stefanini, Inc.	Stefanini, Inc.	256
69.41.49.0/24	AS19197	Stefanini, Inc.	Stefanini, Inc.	256
69.41.57.0/24	AS19197	Stefanini, Inc.	Stefanini, Inc.	256
69.41.38.0/24	AS19197	Stefanini, Inc.	Stefanini, Inc.	256
69.41.53.0/24	AS19197	Stefanini, Inc.	Stefanini, Inc.	256
69.41.54.0/24	AS19197	Stefanini, Inc.	Stefanini, Inc.	256
69.41.43.0/24	AS19197	Stefanini, Inc.	Stefanini, Inc.	256
69.41.46.0/24	AS19197	Stefanini, Inc.	Stefanini, 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:       19197
ASName:         STEFANINI-INC
ASHandle:       AS19197
RegDate:        2000-12-04
Updated:        2018-07-25    
Ref:            https://rdap.arin.net/registry/autnum/19197


OrgName:        Stefanini, Inc.
OrgId:          STEFA-8
Address:        27100 W. 11 Mile Road
City:           Southfield
StateProv:      MI
PostalCode:     48034
Country:        US
RegDate:        2018-02-23
Updated:        2024-02-01
Comment:        https://www.stefanini.com
Ref:            https://rdap.arin.net/registry/entity/STEFA-8


OrgAbuseHandle: BAM47-ARIN
OrgAbuseName:   Monteiro, Bruno Alves
OrgAbusePhone:  +1-248-302-2474 
OrgAbuseEmail:  bruno.monteiro@stefanini.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/BAM47-ARIN

OrgNOCHandle: BAM47-ARIN
OrgNOCName:   Monteiro, Bruno Alves
OrgNOCPhone:  +1-248-302-2474 
OrgNOCEmail:  bruno.monteiro@stefanini.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/BAM47-ARIN

OrgTechHandle: BAM47-ARIN
OrgTechName:   Monteiro, Bruno Alves
OrgTechPhone:  +1-248-302-2474 
OrgTechEmail:  bruno.monteiro@stefanini.com
OrgTechRef:    https://rdap.arin.net/registry/entity/BAM47-ARIN

OrgRoutingHandle: BEANF2-ARIN
OrgRoutingName:   BEAN, FRANK 
OrgRoutingPhone:  +1-248-213-3674 
OrgRoutingEmail:  franklin.bean@stefanini.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/BEANF2-ARIN

OrgAbuseHandle: BEANF2-ARIN
OrgAbuseName:   BEAN, FRANK 
OrgAbusePhone:  +1-248-213-3674 
OrgAbuseEmail:  franklin.bean@stefanini.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/BEANF2-ARIN

OrgRoutingHandle: BAM47-ARIN
OrgRoutingName:   Monteiro, Bruno Alves
OrgRoutingPhone:  +1-248-302-2474 
OrgRoutingEmail:  bruno.monteiro@stefanini.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/BAM47-ARIN

OrgNOCHandle: BEANF2-ARIN
OrgNOCName:   BEAN, FRANK 
OrgNOCPhone:  +1-248-213-3674 
OrgNOCEmail:  franklin.bean@stefanini.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/BEANF2-ARIN

OrgTechHandle: BEANF2-ARIN
OrgTechName:   BEAN, FRANK 
OrgTechPhone:  +1-248-213-3674 
OrgTechEmail:  franklin.bean@stefanini.com
OrgTechRef:    https://rdap.arin.net/registry/entity/BEANF2-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
AS9299	Philippine Long Distance Telephone Co.	PH
AS5606	GTS Telecom SRL	RO
AS19224	Quantum Services Group, LLC.	US
AS3549	Level 3 Communications, Inc. (GBLX)	US
AS31252	StarNet Solutii SRL	MD
AS50084	S.A."Rapid Link" S.R.L.	MD
AS5483	Magyar Telekom Plc.	HU
AS18881	TELEFÔNICA BRASIL S.A	BR
AS2687	AT&T Enterprises, LLC	US
AS4230	CLARO S.A.	BR

Upstreams

AS Number	Description	Country
AS9299	Philippine Long Distance Telephone Co.	PH
AS5606	GTS Telecom SRL	RO
AS19224	Quantum Services Group, LLC.	US
AS31252	StarNet Solutii SRL	MD
AS5483	Magyar Telekom Plc.	HU
AS2687	AT&T Enterprises, LLC	US
AS4230	CLARO S.A.	BR
AS31242	P4 Sp. z o.o.	PL
AS13335	Cloudflare, Inc.	US
AS12912	T Mobile Polska S.A.	PL