ASN AS21570 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS21570?

AS21570 is listed under Accelerated Connections 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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AS21570 Accelerated Connections Inc.

ASN Lookup Tool

Accelerated Connections Inc. connections.ca

CA 61 Routes

AS Data

AS21570

AS21570 – Accelerated Connections Inc.

AS Number	21570
AS Name	ACI-1
Organization	Accelerated Connections Inc.(aclt)
Country	CA
Website	connections.ca
Number of IPv4 Routes	57
Number of IPv6 Routes	4
ASN type	ISP
Registry	ARIN
Date Allocated	2001-05-23

ASN Intelligence API for production workflows

Use ASN data for AS21570 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

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
216.123.186.0/24	AS21570	Accelerated Connections Inc.	Zayo Bandwidth	256
2606:6200::/33	AS21570	Accelerated Connections Inc.	Accelerated Connections Inc.	~40×10²⁷
173.244.124.0/22	AS21570	Accelerated Connections Inc.	Accelerated Connections Inc.	1024
104.244.188.0/23	AS21570	Accelerated Connections Inc.	Accelerated Connections Inc	512
68.232.64.0/21	AS21570	Accelerated Connections Inc.	Accelerated Connections Inc.	2048
173.244.120.0/21	AS21570	Accelerated Connections Inc.	Ministry Of Education	2048
216.234.32.0/21	AS21570	Accelerated Connections Inc.	Accelerated Connections	2048
63.250.112.0/21	AS21570	Accelerated Connections Inc.	Metafore Corporation	2048
2610:38:8000::/33	AS21570	Accelerated Connections Inc.	Accelerated Connections Inc.	~40×10²⁷
205.207.164.0/22	AS21570	Accelerated Connections Inc.	Insite Computer Group	1024

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:       21570
ASName:         ACI-1
ASHandle:       AS21570
RegDate:        2001-05-23
Updated:        2012-07-24    
Ref:            https://rdap.arin.net/registry/autnum/21570


OrgName:        Accelerated Connections Inc.
OrgId:          ACLT
Address:        3740 - 155 Wellington St. W.
City:           Toronto
StateProv:      ON
PostalCode:     M5V 3H1
Country:        CA
RegDate:        2000-12-19
Updated:        2025-08-21
Comment:        http://www.connections.ca
Ref:            https://rdap.arin.net/registry/entity/ACLT


OrgNOCHandle: NOC2114-ARIN
OrgNOCName:   Network Operations Center
OrgNOCPhone:  +1-416-637-3433 
OrgNOCEmail:  net.eng@connections.ca
OrgNOCRef:    https://rdap.arin.net/registry/entity/NOC2114-ARIN

OrgTechHandle: GIT5-ARIN
OrgTechName:   GTT IPAM Team
OrgTechPhone:  +1-703-442-5500 
OrgTechEmail:  netguard@gtt.net
OrgTechRef:    https://rdap.arin.net/registry/entity/GIT5-ARIN

OrgTechHandle: NOC2114-ARIN
OrgTechName:   Network Operations Center
OrgTechPhone:  +1-416-637-3433 
OrgTechEmail:  net.eng@connections.ca
OrgTechRef:    https://rdap.arin.net/registry/entity/NOC2114-ARIN

OrgAbuseHandle: GAD46-ARIN
OrgAbuseName:   GTT Abuse Department
OrgAbusePhone:  +1-703-442-5501 
OrgAbuseEmail:  abuse@gtt.net
OrgAbuseRef:    https://rdap.arin.net/registry/entity/GAD46-ARIN

OrgTechHandle: AS3251-ARIN
OrgTechName:   AS3257 Netguard
OrgTechPhone:  +49 69 48007422 
OrgTechEmail:  netguard@gtt.net
OrgTechRef:    https://rdap.arin.net/registry/entity/AS3251-ARIN

RAbuseHandle: NOC2114-ARIN
RAbuseName:   Network Operations Center
RAbusePhone:  +1-416-637-3433 
RAbuseEmail:  net.eng@connections.ca
RAbuseRef:    https://rdap.arin.net/registry/entity/NOC2114-ARIN

RNOCHandle: NOC2114-ARIN
RNOCName:   Network Operations Center
RNOCPhone:  +1-416-637-3433 
RNOCEmail:  net.eng@connections.ca
RNOCRef:    https://rdap.arin.net/registry/entity/NOC2114-ARIN

RTechHandle: NOC2114-ARIN
RTechName:   Network Operations Center
RTechPhone:  +1-416-637-3433 
RTechEmail:  net.eng@connections.ca
RTechRef:    https://rdap.arin.net/registry/entity/NOC2114-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

Peers

AS Number	Description	Country
AS63122	LOGIX Data Products Inc.	CA
AS286	GTT Communications Inc.	NL
AS286	GTT Communications Inc.	US
AS3257	GTT Communications Inc.	US

Upstreams

AS Number	Description	Country
AS286	GTT Communications Inc.	US
AS3257	GTT Communications Inc.	US

Downstreams

AS Number	Description	Country
AS63122	LOGIX Data Products Inc.	CA

Contacts

Email Contacts

net.eng@connections.ca netguard@gtt.net

Abuse Contacts

abuse@gtt.net