ASN AS11243 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS11243?

AS11243 is listed under Advanced Technologies Group.

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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AS11243 Advanced Technologies Group

ASN Lookup Tool

Advanced Technologies Group atgnet.com

US 1 Routes

AS Data

AS11243

AS11243 – Advanced Technologies Group

AS Number	11243
AS Name	HALAR-ATG1
Organization	Advanced Technologies Group (halar)
Country	US
Website	atgnet.com
Number of IPv4 Routes	1
Number of IPv6 Routes	0
ASN type	ISP
Registry	ARIN
Date Allocated	2007-05-24

ASN Intelligence API for production workflows

Use ASN data for AS11243 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
168.100.170.0/24	AS11243	Advanced Technologies Group	Advanced Technologies Group	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:       11243
ASName:         HALAR-ATG1
ASHandle:       AS11243
RegDate:        2007-05-24
Updated:        2021-08-02
Ref:            https://rdap.arin.net/registry/autnum/11243


OrgName:        Advanced Technologies Group
OrgId:          HALAR
Address:        20 Cedar St.
Address:        Suite 104
City:           New Rochelle
StateProv:      NY
PostalCode:     10801
Country:        US
RegDate:        2007-05-21
Updated:        2024-11-25
Ref:            https://rdap.arin.net/registry/entity/HALAR


OrgTechHandle: BLA26-ARIN
OrgTechName:   Lam, Bernardo 
OrgTechPhone:  +1-914-633-5800 
OrgTechEmail:  blam@atgnet.com
OrgTechRef:    https://rdap.arin.net/registry/entity/BLA26-ARIN

OrgAbuseHandle: BLA26-ARIN
OrgAbuseName:   Lam, Bernardo 
OrgAbusePhone:  +1-914-633-5800 
OrgAbuseEmail:  blam@atgnet.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/BLA26-ARIN

OrgTechHandle: RPT8-ARIN
OrgTechName:   Tinkelman, Robert P
OrgTechPhone:  +1-917-836-0977 
OrgTechEmail:  bob@tinkelman.com
OrgTechRef:    https://rdap.arin.net/registry/entity/RPT8-ARIN

OrgAbuseHandle: RPT8-ARIN
OrgAbuseName:   Tinkelman, Robert P
OrgAbusePhone:  +1-917-836-0977 
OrgAbuseEmail:  bob@tinkelman.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/RPT8-ARIN

RNOCHandle: BLA26-ARIN
RNOCName:   Lam, Bernardo 
RNOCPhone:  +1-914-633-5800 
RNOCEmail:  blam@atgnet.com
RNOCRef:    https://rdap.arin.net/registry/entity/BLA26-ARIN

RAbuseHandle: BLA26-ARIN
RAbuseName:   Lam, Bernardo 
RAbusePhone:  +1-914-633-5800 
RAbuseEmail:  blam@atgnet.com
RAbuseRef:    https://rdap.arin.net/registry/entity/BLA26-ARIN

RTechHandle: BLA26-ARIN
RTechName:   Lam, Bernardo 
RTechPhone:  +1-914-633-5800 
RTechEmail:  blam@atgnet.com
RTechRef:    https://rdap.arin.net/registry/entity/BLA26-ARIN

RTechHandle: RPT8-ARIN
RTechName:   Tinkelman, Robert P
RTechPhone:  +1-917-836-0977 
RTechEmail:  bob@tinkelman.com
RTechRef:    https://rdap.arin.net/registry/entity/RPT8-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" : "11243",
    "as_handle" : "AS11243",
    "as_name" : "HALAR-ATG1",
    "tech_contacts" : [ "BLA26-ARIN", "RPT8-ARIN", "BLA26-ARIN", "RPT8-ARIN" ],
    "abuse_contacts" : [ "BLA26-ARIN", "RPT8-ARIN", "BLA26-ARIN" ],
    "date_created" : "2007-05-24",
    "date_updated" : "2021-08-02",
    "source" : "https://rdap.arin.net/registry/autnum/11243"
  } ],
  "organization" : {
    "handle" : "HALAR",
    "name" : "Advanced Technologies Group",
    "address" : [ "20 Cedar St.", "Suite 104", "New Rochelle", "NY", "10801", "US" ],
    "street" : "Cedar St.",
    "city" : "New Rochelle",
    "state" : "NY",
    "zip_code" : "10801",
    "country" : [ "US" ],
    "date_created" : "2007-05-21",
    "date_updated" : "2024-11-25",
    "source" : "https://rdap.arin.net/registry/entity/HALAR",
    "addressCountry" : "US"
  },
  "technical_contacts" : [ {
    "handle" : "BLA26-ARIN",
    "name" : "Lam, Bernardo",
    "email" : [ "blam@atgnet.com" ],
    "phone" : [ "+1-914-633-5800" ],
    "source" : "https://rdap.arin.net/registry/entity/BLA26-ARIN"
  }, {
    "handle" : "RPT8-ARIN",
    "name" : "Tinkelman, Robert P",
    "email" : [ "bob@tinkelman.com" ],
    "phone" : [ "+1-917-836-0977" ],
    "source" : "https://rdap.arin.net/registry/entity/RPT8-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "BLA26-ARIN",
    "name" : "Lam, Bernardo",
    "email" : [ "blam@atgnet.com" ],
    "phone" : [ "+1-914-633-5800" ],
    "source" : "https://rdap.arin.net/registry/entity/BLA26-ARIN"
  }, {
    "handle" : "RPT8-ARIN",
    "name" : "Tinkelman, Robert P",
    "email" : [ "bob@tinkelman.com" ],
    "phone" : [ "+1-917-836-0977" ],
    "source" : "https://rdap.arin.net/registry/entity/RPT8-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS54004	Cablevision Lightpath LLC	US

Upstreams

AS Number	Description	Country
AS54004	Cablevision Lightpath LLC	US