ASN AS21749 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS21749?

AS21749 is listed under Alberici Group, 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.

AS21749 Alberici Group, Inc. | IPGeolocation.io

ASN Lookup Tool

Alberici Group, Inc. alberici.com

US 1 Routes

AS Data

AS21749

AS21749 – Alberici Group, Inc.

AS Number	21749
AS Name	ALBERICI-GROUP
Organization	Alberici Group, Inc.(ag-392)
Country	US
Website	alberici.com
Number of IPv4 Routes	1
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2015-01-28

ASN Intelligence API for production workflows

Use ASN data for AS21749 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
192.76.180.0/24	AS21749	Alberici Group, Inc.	Alberici Group, 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:       21749
ASName:         ALBERICI-GROUP
ASHandle:       AS21749
RegDate:        2015-01-28
Updated:        2015-01-28    
Ref:            https://rdap.arin.net/registry/autnum/21749


OrgName:        Alberici Group, Inc.
OrgId:          AG-392
Address:        8800 Page Ave.
City:           St. Louis
StateProv:      MO
PostalCode:     63114
Country:        US
RegDate:        2014-11-19
Updated:        2014-11-19
Ref:            https://rdap.arin.net/registry/entity/AG-392


OrgTechHandle: NET14-ARIN
OrgTechName:   Network Engineer, Todd 
OrgTechPhone:  +1-314-733-2022 
OrgTechEmail:  tbertchume@alberici.com
OrgTechRef:    https://rdap.arin.net/registry/entity/NET14-ARIN

OrgTechHandle: BORRO24-ARIN
OrgTechName:   Borror, Ron 
OrgTechPhone:  +1-314-733-2226 
OrgTechEmail:  ronb@alberici.com
OrgTechRef:    https://rdap.arin.net/registry/entity/BORRO24-ARIN

OrgAbuseHandle: BORRO24-ARIN
OrgAbuseName:   Borror, Ron 
OrgAbusePhone:  +1-314-733-2226 
OrgAbuseEmail:  ronb@alberici.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/BORRO24-ARIN

OrgNOCHandle: NET14-ARIN
OrgNOCName:   Network Engineer, Todd 
OrgNOCPhone:  +1-314-733-2022 
OrgNOCEmail:  tbertchume@alberici.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/NET14-ARIN

OrgAbuseHandle: NET14-ARIN
OrgAbuseName:   Network Engineer, Todd 
OrgAbusePhone:  +1-314-733-2022 
OrgAbuseEmail:  tbertchume@alberici.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NET14-ARIN

OrgNOCHandle: BORRO24-ARIN
OrgNOCName:   Borror, Ron 
OrgNOCPhone:  +1-314-733-2226 
OrgNOCEmail:  ronb@alberici.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/BORRO24-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