What is ASN AS400931?

ASN AS400931 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS400931?

AS400931 is listed under Rock Oak, LLC.

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.

AS400931 Rock Oak, LLC | IPGeolocation.io

ASN Lookup Tool

Rock Oak, LLC rockoak.com

US 3 Routes

AS Data

AS400931

AS400931 – Rock Oak, LLC

AS Number	400931
AS Name	ROCKOAK-ASN
Organization	Rock Oak, LLC(rol-41)
Country	US
Website	rockoak.com
Number of IPv4 Routes	3
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2024-02-15

ASN Intelligence API for production workflows

Use ASN data for AS400931 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
140.235.251.0/24	AS400931	Rock Oak, LLC	Rock Oak, LLC	256
140.235.250.0/23	AS400931	Rock Oak, LLC	Rock Oak, LLC	512
140.235.250.0/24	AS400931	Rock Oak, LLC	Rock Oak, LLC	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:       400931
ASName:         ROCKOAK-ASN
ASHandle:       AS400931
RegDate:        2024-02-15
Updated:        2024-02-15    
Ref:            https://rdap.arin.net/registry/autnum/400931


OrgName:        Rock Oak, LLC
OrgId:          ROL-41
Address:        10065 Main Street
City:           Clarence
StateProv:      NY
PostalCode:     14031
Country:        US
RegDate:        2023-02-03
Updated:        2023-02-28
Ref:            https://rdap.arin.net/registry/entity/ROL-41


OrgAbuseHandle: DILLN2-ARIN
OrgAbuseName:   Dill, Noel 
OrgAbusePhone:  +1-716-759-9700 
OrgAbuseEmail:  ndill@rockoak.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/DILLN2-ARIN

OrgDNSHandle: DILLN2-ARIN
OrgDNSName:   Dill, Noel 
OrgDNSPhone:  +1-716-759-9700 
OrgDNSEmail:  ndill@rockoak.com
OrgDNSRef:    https://rdap.arin.net/registry/entity/DILLN2-ARIN

OrgNOCHandle: DILLN2-ARIN
OrgNOCName:   Dill, Noel 
OrgNOCPhone:  +1-716-759-9700 
OrgNOCEmail:  ndill@rockoak.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/DILLN2-ARIN

OrgRoutingHandle: DILLN2-ARIN
OrgRoutingName:   Dill, Noel 
OrgRoutingPhone:  +1-716-759-9700 
OrgRoutingEmail:  ndill@rockoak.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/DILLN2-ARIN

OrgTechHandle: DILLN2-ARIN
OrgTechName:   Dill, Noel 
OrgTechPhone:  +1-716-759-9700 
OrgTechEmail:  ndill@rockoak.com
OrgTechRef:    https://rdap.arin.net/registry/entity/DILLN2-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
AS11351	Charter Communications Inc	US

Upstreams

AS Number	Description	Country
AS11351	Charter Communications Inc	US