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.

AS46478 Castor Networks Corporation

Q: Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

ASN Lookup Tool

Castor Networks Corporation giesen.me

CA 1 Routes

AS Data

AS46478

AS46478 – Castor Networks Corporation

AS Number	46478
AS Name	ASN-CASTOR-NETWORKS
Organization	Castor Networks Corporation (cnc-34)
Country	CA
Website	giesen.me
Number of IPv4 Routes	1
Number of IPv6 Routes	0
ASN type	ISP
Registry	ARIN
Date Allocated	2008-09-30

ASN Intelligence API for production workflows

Use ASN data for AS46478 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
66.51.246.0/24	AS46478	Castor Networks Corporation	Castor Networks	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:       46478
ASName:         ASN-CASTOR-NETWORKS
ASHandle:       AS46478
RegDate:        2008-09-30
Updated:        2012-03-02
Ref:            https://rdap.arin.net/registry/autnum/46478


OrgName:        Castor Networks Corporation
OrgId:          CNC-34
Address:        10 Benbow Road
City:           Toronto
StateProv:      ON
PostalCode:     M9P 3K2
Country:        CA
RegDate:        2008-03-28
Updated:        2012-10-25
Ref:            https://rdap.arin.net/registry/entity/CNC-34


OrgAbuseHandle: GTG9-ARIN
OrgAbuseName:   Giesen, Gary T
OrgAbusePhone:  +1-416-479-0896 
OrgAbuseEmail:  ggiesen+arin@giesen.me
OrgAbuseRef:    https://rdap.arin.net/registry/entity/GTG9-ARIN

OrgTechHandle: GTG9-ARIN
OrgTechName:   Giesen, Gary T
OrgTechPhone:  +1-416-479-0896 
OrgTechEmail:  ggiesen+arin@giesen.me
OrgTechRef:    https://rdap.arin.net/registry/entity/GTG9-ARIN

OrgNOCHandle: GTG9-ARIN
OrgNOCName:   Giesen, Gary T
OrgNOCPhone:  +1-416-479-0896 
OrgNOCEmail:  ggiesen+arin@giesen.me
OrgNOCRef:    https://rdap.arin.net/registry/entity/GTG9-ARIN

RTechHandle: GTG9-ARIN
RTechName:   Giesen, Gary T
RTechPhone:  +1-416-479-0896 
RTechEmail:  ggiesen+arin@giesen.me
RTechRef:    https://rdap.arin.net/registry/entity/GTG9-ARIN

RAbuseHandle: GTG9-ARIN
RAbuseName:   Giesen, Gary T
RAbusePhone:  +1-416-479-0896 
RAbuseEmail:  ggiesen+arin@giesen.me
RAbuseRef:    https://rdap.arin.net/registry/entity/GTG9-ARIN

RNOCHandle: GTG9-ARIN
RNOCName:   Giesen, Gary T
RNOCPhone:  +1-416-479-0896 
RNOCEmail:  ggiesen+arin@giesen.me
RNOCRef:    https://rdap.arin.net/registry/entity/GTG9-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" : "46478",
    "as_handle" : "AS46478",
    "as_name" : "ASN-CASTOR-NETWORKS",
    "tech_contacts" : [ "GTG9-ARIN", "GTG9-ARIN" ],
    "abuse_contacts" : [ "GTG9-ARIN", "GTG9-ARIN" ],
    "date_created" : "2008-09-30",
    "date_updated" : "2012-03-02",
    "source" : "https://rdap.arin.net/registry/autnum/46478"
  } ],
  "organization" : {
    "handle" : "CNC-34",
    "name" : "Castor Networks Corporation",
    "address" : [ "10 Benbow Road", "Toronto", "ON", "M9P3K2", "CA" ],
    "street" : "Benbow Road",
    "city" : "Toronto",
    "state" : "ON",
    "zip_code" : "M9P3K2",
    "country" : [ "CA" ],
    "date_created" : "2008-03-28",
    "date_updated" : "2012-10-25",
    "source" : "https://rdap.arin.net/registry/entity/CNC-34",
    "addressCountry" : "CA"
  },
  "technical_contacts" : [ {
    "handle" : "GTG9-ARIN",
    "name" : "Giesen, Gary T",
    "email" : [ "ggiesen+arin@giesen.me" ],
    "phone" : [ "+1-416-479-0896" ],
    "source" : "https://rdap.arin.net/registry/entity/GTG9-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "GTG9-ARIN",
    "name" : "Giesen, Gary T",
    "email" : [ "ggiesen+arin@giesen.me" ],
    "phone" : [ "+1-416-479-0896" ],
    "source" : "https://rdap.arin.net/registry/entity/GTG9-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS13657	E Gate Communications Inc.	CA
AS13657	E-Gate Communications Inc.	CA

Upstreams

AS Number	Description	Country
AS13657	E Gate Communications Inc.	CA

Frequently Asked Questions

What is ASN AS46478?

ASN AS46478 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS46478?

AS46478 is listed under Castor Networks Corporation.

What do peers, upstreams, and downstreams mean?

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 included here?

WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access full ASN table data?

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.