ASN AS23261 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS23261?

AS23261 is listed under NCS Managed Services Inc.

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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AS23261 NCS Managed Services Inc

ASN Lookup Tool

NCS Managed Services Inc ncs-online.com

CA 9 Routes

AS Data

AS23261

AS23261 – NCS Managed Services Inc

AS Number	23261
AS Name	NCS-MSI
Organization	NCS Managed Services Inc (nms-127)
Country	CA
Website	ncs-online.com
Number of IPv4 Routes	8
Number of IPv6 Routes	1
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2020-01-10

ASN Intelligence API for production workflows

Use ASN data for AS23261 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
23.131.112.0/24	AS23261	NCS Managed Services Inc	NCS Managed Services Inc	256
136.175.119.0/24	AS23261	NCS Managed Services Inc	NCS Managed Services Inc	256
156.9.4.0/22	AS23261	NCS Managed Services Inc	NCS Managed Services Inc	1024
66.235.100.0/22	AS23261	NCS Managed Services Inc	NCS Managed Services Inc	1024
136.175.118.0/24	AS23261	NCS Managed Services Inc	NCS Managed Services Inc	256
149.18.192.0/20	AS23261	NCS Managed Services Inc	NCS Managed Services Inc	4096
136.175.117.0/24	AS23261	NCS Managed Services Inc	NCS Managed Services Inc	256
2605:2e40::/32	AS23261	NCS Managed Services Inc	NCS Managed Services Inc	~79×10²⁷
136.175.116.0/24	AS23261	NCS Managed Services Inc	NCS Managed Services Inc	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:       23261
ASName:         NCS-MSI
ASHandle:       AS23261
RegDate:        2020-01-10
Updated:        2021-04-08
Ref:            https://rdap.arin.net/registry/autnum/23261


OrgName:        NCS Managed Services Inc
OrgId:          NMS-127
Address:        100 Black Rock Road
City:           Clifton
StateProv:      NS
PostalCode:     B6L 1B9
Country:        CA
RegDate:        2021-02-26
Updated:        2025-02-13
Ref:            https://rdap.arin.net/registry/entity/NMS-127


OrgRoutingHandle: MSINC1-ARIN
OrgRoutingName:   MSI, NCS 
OrgRoutingPhone:  +1-877-473-3660 
OrgRoutingEmail:  support@ncsmanagedservices.net
OrgRoutingRef:    https://rdap.arin.net/registry/entity/MSINC1-ARIN

OrgTechHandle: MSINC1-ARIN
OrgTechName:   MSI, NCS 
OrgTechPhone:  +1-877-473-3660 
OrgTechEmail:  support@ncsmanagedservices.net
OrgTechRef:    https://rdap.arin.net/registry/entity/MSINC1-ARIN

OrgNOCHandle: MSINC1-ARIN
OrgNOCName:   MSI, NCS 
OrgNOCPhone:  +1-877-473-3660 
OrgNOCEmail:  support@ncsmanagedservices.net
OrgNOCRef:    https://rdap.arin.net/registry/entity/MSINC1-ARIN

OrgDNSHandle: MSINC1-ARIN
OrgDNSName:   MSI, NCS 
OrgDNSPhone:  +1-877-473-3660 
OrgDNSEmail:  support@ncsmanagedservices.net
OrgDNSRef:    https://rdap.arin.net/registry/entity/MSINC1-ARIN

OrgAbuseHandle: MSINC1-ARIN
OrgAbuseName:   MSI, NCS 
OrgAbusePhone:  +1-877-473-3660 
OrgAbuseEmail:  support@ncsmanagedservices.net
OrgAbuseRef:    https://rdap.arin.net/registry/entity/MSINC1-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" : "23261",
    "as_handle" : "AS23261",
    "as_name" : "NCS-MSI",
    "admin_contacts" : [ "MSINC1-ARIN" ],
    "tech_contacts" : [ "MSINC1-ARIN", "MSINC1-ARIN" ],
    "abuse_contacts" : [ "MSINC1-ARIN" ],
    "date_created" : "2020-01-10",
    "date_updated" : "2021-04-08",
    "source" : "https://rdap.arin.net/registry/autnum/23261"
  } ],
  "organization" : {
    "handle" : "NMS-127",
    "name" : "NCS Managed Services Inc",
    "address" : [ "100 Black Rock Road", "Clifton", "NS", "B6L1B9", "CA" ],
    "street" : "Black Rock Road",
    "city" : "Clifton",
    "state" : "NS",
    "zip_code" : "B6L1B9",
    "country" : [ "CA" ],
    "date_created" : "2021-02-26",
    "date_updated" : "2025-02-13",
    "source" : "https://rdap.arin.net/registry/entity/NMS-127",
    "addressCountry" : "CA"
  },
  "administrative_contacts" : [ {
    "handle" : "MSINC1-ARIN",
    "name" : "MSI, NCS",
    "email" : [ "support@ncsmanagedservices.net" ],
    "phone" : [ "+1-877-473-3660" ],
    "source" : "https://rdap.arin.net/registry/entity/MSINC1-ARIN"
  } ],
  "technical_contacts" : [ {
    "handle" : "MSINC1-ARIN",
    "name" : "MSI, NCS",
    "email" : [ "support@ncsmanagedservices.net" ],
    "phone" : [ "+1-877-473-3660" ],
    "source" : "https://rdap.arin.net/registry/entity/MSINC1-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "MSINC1-ARIN",
    "name" : "MSI, NCS",
    "email" : [ "support@ncsmanagedservices.net" ],
    "phone" : [ "+1-877-473-3660" ],
    "source" : "https://rdap.arin.net/registry/entity/MSINC1-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS5645	TekSavvy Solutions, Inc.	CA
AS11260	EastLink	CA

Upstreams

AS Number	Description	Country
AS5645	TekSavvy Solutions, Inc.	CA
AS11260	EastLink	CA