ASN AS40943 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS40943?

AS40943 is listed under Rural Broadband, L.L.C..

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.

AS40943 Rural Broadband, L.L.C.

ASN Lookup Tool

Rural Broadband, L.L.C. rbbmt.net

US 4 Routes

AS Data

AS40943

AS40943 – Rural Broadband, L.L.C.

AS Number	40943
AS Name	RURALBROADBAND
Organization	Rural Broadband, L.L.C.(rbl-17)
Country	US
Website	rbbmt.net
Number of IPv4 Routes	3
Number of IPv6 Routes	1
ASN type	ISP
Registry	ARIN
Date Allocated	2008-05-30

ASN Intelligence API for production workflows

Use ASN data for AS40943 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
216.187.155.0/24	AS40943	Rural Broadband, L.L.C.	Rural Broadband, L.L.C.	256
2604:3d40::/32	AS40943	Rural Broadband, L.L.C.	Rural Broadband, L.L.C.	~79×10²⁷
199.167.208.0/22	AS40943	Rural Broadband, L.L.C.	Rural Broadband, L.L.C.	1024
208.91.184.0/22	AS40943	Rural Broadband, L.L.C.	Rural Broadband, L.L.C.	1024

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:       40943
ASName:         RURALBROADBAND
ASHandle:       AS40943
RegDate:        2008-05-30
Updated:        2017-05-03    
Ref:            https://rdap.arin.net/registry/autnum/40943


OrgName:        Rural Broadband, L.L.C.
OrgId:          RBL-17
Address:        1835 Pheasant Brook Dr
City:           Laurel
StateProv:      MT
PostalCode:     59044
Country:        US
RegDate:        2007-03-08
Updated:        2025-06-23
Ref:            https://rdap.arin.net/registry/entity/RBL-17


OrgTechHandle: DUPON-ARIN
OrgTechName:   DuPont, Jesse 
OrgTechPhone:  +1-605-340-0651 
OrgTechEmail:  jesse@celerityinternet.com
OrgTechRef:    https://rdap.arin.net/registry/entity/DUPON-ARIN

OrgNOCHandle: OLSON9-ARIN
OrgNOCName:   Olson, Jarad 
OrgNOCPhone:  +1-406-628-1568 
OrgNOCEmail:  jolson@rbbmt.net
OrgNOCRef:    https://rdap.arin.net/registry/entity/OLSON9-ARIN

OrgAbuseHandle: NOC3097-ARIN
OrgAbuseName:   Network Operations Center
OrgAbusePhone:  +1-406-628-1568 
OrgAbuseEmail:  noc@rbbmt.net
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NOC3097-ARIN

OrgTechHandle: DUPON15-ARIN
OrgTechName:   DuPont, Jesse 
OrgTechPhone:  +1-406-222-5454 
OrgTechEmail:  jesse.dupont@tctstaff.com
OrgTechRef:    https://rdap.arin.net/registry/entity/DUPON15-ARIN

OrgNOCHandle: NOC3097-ARIN
OrgNOCName:   Network Operations Center
OrgNOCPhone:  +1-406-628-1568 
OrgNOCEmail:  noc@rbbmt.net
OrgNOCRef:    https://rdap.arin.net/registry/entity/NOC3097-ARIN

OrgTechHandle: NOC3097-ARIN
OrgTechName:   Network Operations Center
OrgTechPhone:  +1-406-628-1568 
OrgTechEmail:  noc@rbbmt.net
OrgTechRef:    https://rdap.arin.net/registry/entity/NOC3097-ARIN

RAbuseHandle: NOC3097-ARIN
RAbuseName:   Network Operations Center
RAbusePhone:  +1-406-628-1568 
RAbuseEmail:  noc@rbbmt.net
RAbuseRef:    https://rdap.arin.net/registry/entity/NOC3097-ARIN

RTechHandle: NOC3097-ARIN
RTechName:   Network Operations Center
RTechPhone:  +1-406-628-1568 
RTechEmail:  noc@rbbmt.net
RTechRef:    https://rdap.arin.net/registry/entity/NOC3097-ARIN

RNOCHandle: NOC3097-ARIN
RNOCName:   Network Operations Center
RNOCPhone:  +1-406-628-1568 
RNOCEmail:  noc@rbbmt.net
RNOCRef:    https://rdap.arin.net/registry/entity/NOC3097-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
AS4474	TCT West, Inc.	US

Upstreams

AS Number	Description	Country
AS3356	Level 3 Parent, LLC	US
AS4474	TCT West, Inc.	US