What is ASN AS397258?

ASN AS397258 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS397258?

AS397258 is listed under Graton Resort and Casino.

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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AS397258 Graton Resort and Casino

ASN Lookup Tool

Graton Resort and Casino gratonresortcasino.com

US 1 Routes

AS Data

AS397258

AS397258 – Graton Resort and Casino

AS Number	397258
AS Name	GTRC-01
Organization	Graton Resort and Casino (geda-2)
Country	US
Website	gratonresortcasino.com
Number of IPv4 Routes	1
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2019-01-25

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Use ASN data for AS397258 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
50.228.21.0/24	AS397258	Graton Resort and Casino	Graton Resort and Casino	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:       397258
ASName:         GTRC-01
ASHandle:       AS397258
RegDate:        2019-01-25
Updated:        2019-01-25
Ref:            https://rdap.arin.net/registry/autnum/397258


OrgName:        Graton Resort and Casino
OrgId:          GEDA-2
Address:        630 Park Court
City:           Rohnert Park
StateProv:      CA
PostalCode:     94928
Country:        US
RegDate:        2018-06-01
Updated:        2025-06-10
Ref:            https://rdap.arin.net/registry/entity/GEDA-2


OrgRoutingHandle: AGNES4-ARIN
OrgRoutingName:   Agnese, Joe 
OrgRoutingPhone:  +1-707-588-7357 
OrgRoutingEmail:  joseph.agnese@gratonresortcasino.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/AGNES4-ARIN

OrgTechHandle: NETWO9773-ARIN
OrgTechName:   Network Infrastructure
OrgTechPhone:  +1-707-588-7300 
OrgTechEmail:  GroupITNetwork@gratonresortcasino.com
OrgTechRef:    https://rdap.arin.net/registry/entity/NETWO9773-ARIN

OrgNOCHandle: AGNES4-ARIN
OrgNOCName:   Agnese, Joe 
OrgNOCPhone:  +1-707-588-7357 
OrgNOCEmail:  joseph.agnese@gratonresortcasino.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/AGNES4-ARIN

OrgRoutingHandle: NETWO9773-ARIN
OrgRoutingName:   Network Infrastructure
OrgRoutingPhone:  +1-707-588-7300 
OrgRoutingEmail:  GroupITNetwork@gratonresortcasino.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/NETWO9773-ARIN

OrgNOCHandle: NETWO9773-ARIN
OrgNOCName:   Network Infrastructure
OrgNOCPhone:  +1-707-588-7300 
OrgNOCEmail:  GroupITNetwork@gratonresortcasino.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/NETWO9773-ARIN

OrgAbuseHandle: NETWO9773-ARIN
OrgAbuseName:   Network Infrastructure
OrgAbusePhone:  +1-707-588-7300 
OrgAbuseEmail:  GroupITNetwork@gratonresortcasino.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NETWO9773-ARIN

OrgAbuseHandle: AGNES4-ARIN
OrgAbuseName:   Agnese, Joe 
OrgAbusePhone:  +1-707-588-7357 
OrgAbuseEmail:  joseph.agnese@gratonresortcasino.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/AGNES4-ARIN

OrgDNSHandle: NETWO9773-ARIN
OrgDNSName:   Network Infrastructure
OrgDNSPhone:  +1-707-588-7300 
OrgDNSEmail:  GroupITNetwork@gratonresortcasino.com
OrgDNSRef:    https://rdap.arin.net/registry/entity/NETWO9773-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" : "397258",
    "as_handle" : "AS397258",
    "as_name" : "GTRC-01",
    "admin_contacts" : [ "NETWO9773-ARIN" ],
    "tech_contacts" : [ "AGNES4-ARIN", "NETWO9773-ARIN", "NETWO9773-ARIN" ],
    "abuse_contacts" : [ "NETWO9773-ARIN", "AGNES4-ARIN" ],
    "date_created" : "2019-01-25",
    "date_updated" : "2019-01-25",
    "source" : "https://rdap.arin.net/registry/autnum/397258"
  } ],
  "organization" : {
    "handle" : "GEDA-2",
    "name" : "Graton Resort and Casino",
    "address" : [ "630 Park Court", "Rohnert Park", "CA", "94928", "US" ],
    "street" : "Park Court",
    "city" : "Rohnert Park",
    "state" : "CA",
    "zip_code" : "94928",
    "country" : [ "US" ],
    "date_created" : "2018-06-01",
    "date_updated" : "2025-06-10",
    "source" : "https://rdap.arin.net/registry/entity/GEDA-2",
    "addressCountry" : "US"
  },
  "administrative_contacts" : [ {
    "handle" : "NETWO9773-ARIN",
    "name" : "Network Infrastructure",
    "email" : [ "GroupITNetwork@gratonresortcasino.com" ],
    "phone" : [ "+1-707-588-7300" ],
    "source" : "https://rdap.arin.net/registry/entity/NETWO9773-ARIN"
  } ],
  "technical_contacts" : [ {
    "handle" : "AGNES4-ARIN",
    "name" : "Agnese, Joe",
    "email" : [ "joseph.agnese@gratonresortcasino.com" ],
    "phone" : [ "+1-707-588-7357" ],
    "source" : "https://rdap.arin.net/registry/entity/AGNES4-ARIN"
  }, {
    "handle" : "NETWO9773-ARIN",
    "name" : "Network Infrastructure",
    "email" : [ "GroupITNetwork@gratonresortcasino.com" ],
    "phone" : [ "+1-707-588-7300" ],
    "source" : "https://rdap.arin.net/registry/entity/NETWO9773-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "NETWO9773-ARIN",
    "name" : "Network Infrastructure",
    "email" : [ "GroupITNetwork@gratonresortcasino.com" ],
    "phone" : [ "+1-707-588-7300" ],
    "source" : "https://rdap.arin.net/registry/entity/NETWO9773-ARIN"
  }, {
    "handle" : "AGNES4-ARIN",
    "name" : "Agnese, Joe",
    "email" : [ "joseph.agnese@gratonresortcasino.com" ],
    "phone" : [ "+1-707-588-7357" ],
    "source" : "https://rdap.arin.net/registry/entity/AGNES4-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS46375	Sonic Telecom LLC	US
AS33651	Comcast Cable Communications, LLC	US

Upstreams

AS Number	Description	Country
AS46375	Sonic Telecom LLC	US
AS33651	Comcast Cable Communications, LLC	US