ASN Lookup Tool

1st Financial Bank USA 1fbusa.com US US 1 Routes

AS Data

AS20166

AS20166 – 1st Financial Bank USA

AS Number 20166
AS Name 1FBUSA-1
Organization 1st Financial Bank USA(1fbu)
Country US
Website 1fbusa.com
Number of IPv4 Routes 1
Number of IPv6 Routes 0
ASN type BUSINESS
Registry ARIN
Date Allocated 2005-06-01

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Use ASN data for AS20166 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route # IPs
8.39.15.0/24 256

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:       20166
ASName:         1FBUSA-1
ASHandle:       AS20166
RegDate:        2005-06-01
Updated:        2005-06-01    
Ref:            https://rdap.arin.net/registry/autnum/20166


OrgName:        1st Financial Bank USA
OrgId:          1FBU
Address:        363 West Anchor Drive
City:           Dakota Dunes
StateProv:      SD
PostalCode:     57049
Country:        US
RegDate:        2005-05-09
Updated:        2018-05-21
Ref:            https://rdap.arin.net/registry/entity/1FBU


OrgTechHandle: RIZZO1-ARIN
OrgTechName:   Rizzo, Ted 
OrgTechPhone:  +1-712-202-4955 
OrgTechEmail:  trizzo@1fbusa.com
OrgTechRef:    https://rdap.arin.net/registry/entity/RIZZO1-ARIN

OrgTechHandle: NETWO862-ARIN
OrgTechName:   Network Support
OrgTechPhone:  +1-605-232-6792 
OrgTechEmail:  NetworkSupport@1fbusa.com
OrgTechRef:    https://rdap.arin.net/registry/entity/NETWO862-ARIN

OrgAbuseHandle: NETWO862-ARIN
OrgAbuseName:   Network Support
OrgAbusePhone:  +1-605-232-6792 
OrgAbuseEmail:  NetworkSupport@1fbusa.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NETWO862-ARIN

OrgTechHandle: RIZZO33-ARIN
OrgTechName:   Rizzo, Ted 
OrgTechPhone:  +1-605-232-6792 
OrgTechEmail:  trizzo@1fbusa.com
OrgTechRef:    https://rdap.arin.net/registry/entity/RIZZO33-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
AS3549 Level 3 Communications, Inc. (GBLX) US
AS3356 Level 3 Parent, LLC US

Upstreams

AS Number Description Country
AS3356 Level 3 Parent, LLC US

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Frequently Asked Questions

ASN AS20166 is an Autonomous System Number used to identify a network for BGP internet routing.
AS20166 is listed under 1st Financial Bank USA.
Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.
Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.
WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.
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.