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AS399558 Differ Communications Limited

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

Differ Communications Limited differ.ca

CA 3 Routes

AS Data

AS399558

AS399558 – Differ Communications Limited

AS Number	399558
AS Name	DIFFER-COMMUNICATIONS
Organization	Differ Communications Limited (dcl-722)
Country	CA
Website	differ.ca
Number of IPv4 Routes	2
Number of IPv6 Routes	1
ASN type	ISP
Registry	ARIN
Date Allocated	2021-04-13

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Use ASN data for AS399558 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
216.211.200.0/24	AS399558	Differ Communications Limited	Differ Communications	256
2606:d040:1000::/36	AS399558	Differ Communications Limited	Differ Communications Limited	~5×10²⁷
23.136.82.0/24	AS399558	Differ Communications Limited	Differ Communications	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:       399558
ASName:         DIFFER-COMMUNICATIONS
ASHandle:       AS399558
RegDate:        2021-04-13
Updated:        2021-04-13
Comment:        differ.ca
Ref:            https://rdap.arin.net/registry/autnum/399558


OrgName:        Differ Communications Limited
OrgId:          DCL-722
Address:        5692 Bloomfield St
City:           Halifax
StateProv:      NS
PostalCode:     B3K 1T2
Country:        CA
RegDate:        2021-03-11
Updated:        2021-03-11
Ref:            https://rdap.arin.net/registry/entity/DCL-722


OrgNOCHandle: NETWO9433-ARIN
OrgNOCName:   Network Operations
OrgNOCPhone:  +1-902-420-0077 
OrgNOCEmail:  noc@differ.ca
OrgNOCRef:    https://rdap.arin.net/registry/entity/NETWO9433-ARIN

OrgAbuseHandle: NETWO9433-ARIN
OrgAbuseName:   Network Operations
OrgAbusePhone:  +1-902-420-0077 
OrgAbuseEmail:  noc@differ.ca
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NETWO9433-ARIN

OrgTechHandle: NETWO9433-ARIN
OrgTechName:   Network Operations
OrgTechPhone:  +1-902-420-0077 
OrgTechEmail:  noc@differ.ca
OrgTechRef:    https://rdap.arin.net/registry/entity/NETWO9433-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" : "399558",
    "as_handle" : "AS399558",
    "as_name" : "DIFFER-COMMUNICATIONS",
    "tech_contacts" : [ "NETWO9433-ARIN" ],
    "abuse_contacts" : [ "NETWO9433-ARIN" ],
    "date_created" : "2021-04-13",
    "date_updated" : "2021-04-13",
    "source" : "https://rdap.arin.net/registry/autnum/399558"
  } ],
  "organization" : {
    "handle" : "DCL-722",
    "name" : "Differ Communications Limited",
    "address" : [ "5692 Bloomfield St", "Halifax", "NS", "B3K1T2", "CA" ],
    "street" : "Bloomfield St",
    "city" : "Halifax",
    "state" : "NS",
    "zip_code" : "B3K1T2",
    "country" : [ "CA" ],
    "date_created" : "2021-03-11",
    "date_updated" : "2021-03-11",
    "source" : "https://rdap.arin.net/registry/entity/DCL-722",
    "addressCountry" : "CA"
  },
  "technical_contacts" : [ {
    "handle" : "NETWO9433-ARIN",
    "name" : "Network Operations",
    "email" : [ "noc@differ.ca" ],
    "phone" : [ "+1-902-420-0077" ],
    "source" : "https://rdap.arin.net/registry/entity/NETWO9433-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "NETWO9433-ARIN",
    "name" : "Network Operations",
    "email" : [ "noc@differ.ca" ],
    "phone" : [ "+1-902-420-0077" ],
    "source" : "https://rdap.arin.net/registry/entity/NETWO9433-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS1403	EBOX	CA
AS24482	SG.GS	SG
AS22652	Videotron Ltee	CA
AS11670	Toronto Internet Exchange Community	CA
AS33044	Megawire Inc.	CA
AS6939	Hurricane Electric LLC	US
AS286	GTT Communications Inc.	NL
AS286	GTT Communications Inc.	US
AS14537	Continent 8 LLC	US
AS835	GoCodeIT Inc	CA

Upstreams

AS Number	Description	Country
AS394256	Tech Futures Interactive Inc.	CA
AS6939	Hurricane Electric LLC	US
AS286	GTT Communications Inc.	US
AS3257	GTT Communications Inc.	US

Frequently Asked Questions

What is ASN AS399558?

ASN AS399558 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS399558?

AS399558 is listed under Differ Communications Limited.

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.