ASN AS53641 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS53641?

AS53641 is listed under Tomales Bay LAN, 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?

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AS53641 Tomales Bay LAN, LLC | IPGeolocation.io

ASN Lookup Tool

Tomales Bay LAN, LLC tomalesbaylan.com

US 8 Routes

AS Data

AS53641

AS53641 – Tomales Bay LAN, LLC

AS Number	53641
AS Name	TOMALESBAYLAN
Organization	Tomales Bay LAN, LLC (tbll-14)
Country	US
Website	tomalesbaylan.com
Number of IPv4 Routes	8
Number of IPv6 Routes	0
ASN type	ISP
Registry	ARIN
Date Allocated	2012-08-01

ASN Intelligence API for production workflows

Use ASN data for AS53641 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
198.40.45.0/24	AS53641	Tomales Bay LAN, LLC	Tomales Bay LAN, LLC	256
198.40.46.0/24	AS53641	Tomales Bay LAN, LLC	Tomales Bay LAN, LLC	256
198.40.47.0/24	AS53641	Tomales Bay LAN, LLC	Tomales Bay LAN, LLC	256
198.40.44.0/23	AS53641	Tomales Bay LAN, LLC	Tomales Bay LAN, LLC	512
198.40.46.0/23	AS53641	Tomales Bay LAN, LLC	Tomales Bay LAN, LLC	512
198.40.44.0/22	AS53641	Tomales Bay LAN, LLC	Tomales Bay LAN, LLC	1024
198.40.44.0/24	AS53641	Tomales Bay LAN, LLC	Tomales Bay LAN, LLC	256
209.112.111.0/24	AS53641	Tomales Bay LAN, LLC	Tomales Bay LAN, 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:       53641
ASName:         TOMALESBAYLAN
ASHandle:       AS53641
RegDate:        2012-08-01
Updated:        2012-08-01
Ref:            https://rdap.arin.net/registry/autnum/53641


OrgName:        Tomales Bay LAN, LLC
OrgId:          TBLL-14
Address:        16 Miller Ave
Address:        Ste. 203
City:           Mill Valley
StateProv:      CA
PostalCode:     94941
Country:        US
RegDate:        2012-07-24
Updated:        2020-03-27
Ref:            https://rdap.arin.net/registry/entity/TBLL-14


OrgAbuseHandle: SUPPO153-ARIN
OrgAbuseName:   Intelletrace Support
OrgAbusePhone:  +1-800-618-5877 
OrgAbuseEmail:  arinsupport@intelletrace.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/SUPPO153-ARIN

OrgTechHandle: SUPPO153-ARIN
OrgTechName:   Intelletrace Support
OrgTechPhone:  +1-800-618-5877 
OrgTechEmail:  arinsupport@intelletrace.com
OrgTechRef:    https://rdap.arin.net/registry/entity/SUPPO153-ARIN

OrgTechHandle: TBL60-ARIN
OrgTechName:   Tomales Bay LAN
OrgTechPhone:  +1-415-663-0400 
OrgTechEmail:  accounts@tomalesbaylan.com
OrgTechRef:    https://rdap.arin.net/registry/entity/TBL60-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

{
  "status" : true,
  "whois_server" : "whois.arin.net",
  "aut_nums" : [ {
    "aut_num" : "53641",
    "as_handle" : "AS53641",
    "as_name" : "TOMALESBAYLAN",
    "tech_contacts" : [ "SUPPO153-ARIN", "TBL60-ARIN" ],
    "abuse_contacts" : [ "SUPPO153-ARIN" ],
    "date_created" : "2012-08-01",
    "date_updated" : "2012-08-01",
    "source" : "https://rdap.arin.net/registry/autnum/53641"
  } ],
  "organization" : {
    "handle" : "TBLL-14",
    "name" : "Tomales Bay LAN, LLC",
    "address" : [ "16 Miller Ave", "Ste. 203", "Mill Valley", "CA", "94941", "US" ],
    "street" : "Miller Ave",
    "city" : "Mill Valley",
    "state" : "CA",
    "zip_code" : "94941",
    "country" : [ "US" ],
    "date_created" : "2012-07-24",
    "date_updated" : "2020-03-27",
    "source" : "https://rdap.arin.net/registry/entity/TBLL-14",
    "addressCountry" : "US"
  },
  "technical_contacts" : [ {
    "handle" : "SUPPO153-ARIN",
    "name" : "Intelletrace Support",
    "email" : [ "arinsupport@intelletrace.com" ],
    "phone" : [ "+1-800-618-5877" ],
    "source" : "https://rdap.arin.net/registry/entity/SUPPO153-ARIN"
  }, {
    "handle" : "TBL60-ARIN",
    "name" : "Tomales Bay LAN",
    "email" : [ "accounts@tomalesbaylan.com" ],
    "phone" : [ "+1-415-663-0400" ],
    "source" : "https://rdap.arin.net/registry/entity/TBL60-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "SUPPO153-ARIN",
    "name" : "Intelletrace Support",
    "email" : [ "arinsupport@intelletrace.com" ],
    "phone" : [ "+1-800-618-5877" ],
    "source" : "https://rdap.arin.net/registry/entity/SUPPO153-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS7018	AT&T Enterprises, LLC	US
AS26721	Inyo Networks	US

Upstreams

AS Number	Description	Country
AS7018	AT&T Enterprises, LLC	US
AS26721	Inyo Networks	US