ASN AS10461 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS10461?

AS10461 is listed under Eze Castle Software 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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AS10461 Eze Castle Software LLC

ASN Lookup Tool

Eze Castle Software LLC ezesoft.com

US 16 Routes

AS Data

AS10461

AS10461 – Eze Castle Software LLC

AS Number	10461
AS Name	EZE-CASTLE-SOFTWARE-LLC
Organization	Eze Castle Software LLC (ecs-101)
Country	US
Website	ezesoft.com
Number of IPv4 Routes	16
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	1997-08-11

ASN Intelligence API for production workflows

Use ASN data for AS10461 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
142.0.118.0/24	AS10461	Eze Castle Software LLC	Eze Castle Software LLC	256
204.213.198.0/23	AS10461	Eze Castle Software LLC	Eze Castle Software LLC	512
63.160.216.0/23	AS10461	Eze Castle Software LLC	Eze Castle Software LLC	512
63.75.60.0/22	AS10461	Eze Castle Software LLC	EZE CASTLE SOFTWARE LLC	1024
198.207.140.0/24	AS10461	Eze Castle Software LLC	Eze Castle Software LLC	256
74.118.110.0/24	AS10461	Eze Castle Software LLC	Eze Castle Software LLC	256
193.201.252.0/24	AS10461	Eze Castle Software LLC	Eze Castle Software LLC	256
142.0.113.0/24	AS10461	Eze Castle Software LLC	Eze Castle Software LLC	256
142.0.112.0/24	AS10461	Eze Castle Software LLC	Eze Castle Software LLC	256
142.0.119.0/24	AS10461	Eze Castle Software LLC	Eze Castle Software 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:       10461
ASName:         EZE-CASTLE-SOFTWARE-LLC
ASHandle:       AS10461
RegDate:        1997-08-11
Updated:        2015-08-28
Ref:            https://rdap.arin.net/registry/autnum/10461


OrgName:        Eze Castle Software LLC
OrgId:          ECS-101
Address:        12 Farnsworth Street, Floor 6
City:           Boston
StateProv:      MA
PostalCode:     02210
Country:        US
RegDate:        2002-01-30
Updated:        2015-07-06
Ref:            https://rdap.arin.net/registry/entity/ECS-101


OrgTechHandle: NETWO3196-ARIN
OrgTechName:   Network Engineering
OrgTechPhone:  +1-312-442-8696 
OrgTechEmail:  net@ezesoft.com
OrgTechRef:    https://rdap.arin.net/registry/entity/NETWO3196-ARIN

OrgAbuseHandle: NETWO3196-ARIN
OrgAbuseName:   Network Engineering
OrgAbusePhone:  +1-312-442-8696 
OrgAbuseEmail:  net@ezesoft.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NETWO3196-ARIN

OrgNOCHandle: NOC32124-ARIN
OrgNOCName:   Network Operations Center
OrgNOCPhone:  +1-312-442-8696 
OrgNOCEmail:  net@ezesoft.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/NOC32124-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" : "10461",
    "as_handle" : "AS10461",
    "as_name" : "EZE-CASTLE-SOFTWARE-LLC",
    "tech_contacts" : [ "NETWO3196-ARIN" ],
    "abuse_contacts" : [ "NETWO3196-ARIN" ],
    "date_created" : "1997-08-11",
    "date_updated" : "2015-08-28",
    "source" : "https://rdap.arin.net/registry/autnum/10461"
  } ],
  "organization" : {
    "handle" : "ECS-101",
    "name" : "Eze Castle Software LLC",
    "address" : [ "12 Farnsworth Street, Floor 6", "Boston", "MA", "02210", "US" ],
    "street" : "Farnsworth Street",
    "city" : "Boston",
    "state" : "MA",
    "zip_code" : "02210",
    "country" : [ "US" ],
    "date_created" : "2002-01-30",
    "date_updated" : "2015-07-06",
    "source" : "https://rdap.arin.net/registry/entity/ECS-101",
    "addressCountry" : "US"
  },
  "technical_contacts" : [ {
    "handle" : "NETWO3196-ARIN",
    "name" : "Network Engineering",
    "email" : [ "net@ezesoft.com" ],
    "phone" : [ "+1-312-442-8696" ],
    "source" : "https://rdap.arin.net/registry/entity/NETWO3196-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "NETWO3196-ARIN",
    "name" : "Network Engineering",
    "email" : [ "net@ezesoft.com" ],
    "phone" : [ "+1-312-442-8696" ],
    "source" : "https://rdap.arin.net/registry/entity/NETWO3196-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS19024	Unitas Global	US
AS13335	Cloudflare, Inc.	US
AS9498	Bharti Airtel Ltd	IN
AS9498	Bharti Airtel Limited	IN
AS4755	Tata Communications (formerly VSNL)	IN
AS3356	Level 3 Parent, LLC	US
AS174	Cogent Communications, LLC	US
AS4755	Tata Communications Limited	IN

Upstreams

AS Number	Description	Country
AS19024	Unitas Global	US
AS13335	Cloudflare, Inc.	US
AS9498	Bharti Airtel Limited	IN
AS3356	Level 3 Parent, LLC	US
AS174	Cogent Communications, LLC	US
AS4755	Tata Communications Limited	IN