ASN AS18973 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS18973?

AS18973 is listed under TAG Online 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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AS18973 TAG Online Inc. | IPGeolocation.io

ASN Lookup Tool

TAG Online Inc. tagonline.com

US 8 Routes

AS Data

AS18973

AS18973 – TAG Online Inc.

AS Number	18973
AS Name	TAG-ONLINE
Organization	TAG Online Inc. (tagonl)
Country	US
Website	tagonline.com
Number of IPv4 Routes	4
Number of IPv6 Routes	4
ASN type	ISP
Registry	ARIN
Date Allocated	2000-11-03

ASN Intelligence API for production workflows

Use ASN data for AS18973 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
207.111.76.0/22	AS18973	TAG Online Inc.	Tag Systems, Inc.	1024
2606:1a00:1000::/36	AS18973	TAG Online Inc.	TAG Online Inc.	~5×10²⁷
2606:1a00:2000::/36	AS18973	TAG Online Inc.	TAG Online Inc.	~5×10²⁷
198.138.68.0/23	AS18973	TAG Online Inc.	Tag Online, Inc.	512
198.138.68.0/24	AS18973	TAG Online Inc.	Tag Online, Inc.	256
198.138.69.0/24	AS18973	TAG Online Inc.	Tag Online, Inc.	256
2606:1a00::/32	AS18973	TAG Online Inc.	TAG Online Inc.	~79×10²⁷
2606:1a00:3000::/36	AS18973	TAG Online Inc.	TAG Online Inc.	~5×10²⁷

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:       18973
ASName:         TAG-ONLINE
ASHandle:       AS18973
RegDate:        2000-11-03
Updated:        2022-08-26
Ref:            https://rdap.arin.net/registry/autnum/18973


OrgName:        TAG Online Inc.
OrgId:          TAGONL
Address:        6 Prospect Village Plaza
City:           Clifton
StateProv:      NJ
PostalCode:     07013
Country:        US
RegDate:        2000-11-03
Updated:        2024-11-25
Ref:            https://rdap.arin.net/registry/entity/TAGONL


OrgTechHandle: BPM12-ARIN
OrgTechName:   BGP Peering Management
OrgTechPhone:  +1-973-783-5583 
OrgTechEmail:  bgp8273@tagonline.com
OrgTechRef:    https://rdap.arin.net/registry/entity/BPM12-ARIN

OrgAbuseHandle: AG18-ARIN
OrgAbuseName:   Gideon, Andrew 
OrgAbusePhone:  +1-973-783-5583 
OrgAbuseEmail:  dns-admin@tagonline.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/AG18-ARIN

OrgTechHandle: AG18-ARIN
OrgTechName:   Gideon, Andrew 
OrgTechPhone:  +1-973-783-5583 
OrgTechEmail:  dns-admin@tagonline.com
OrgTechRef:    https://rdap.arin.net/registry/entity/AG18-ARIN

RTechHandle: AG18-ARIN
RTechName:   Gideon, Andrew 
RTechPhone:  +1-973-783-5583 
RTechEmail:  dns-admin@tagonline.com
RTechRef:    https://rdap.arin.net/registry/entity/AG18-ARIN

RTechHandle: BPM12-ARIN
RTechName:   BGP Peering Management
RTechPhone:  +1-973-783-5583 
RTechEmail:  bgp8273@tagonline.com
RTechRef:    https://rdap.arin.net/registry/entity/BPM12-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" : "18973",
    "as_handle" : "AS18973",
    "as_name" : "TAG-ONLINE",
    "tech_contacts" : [ "BPM12-ARIN", "AG18-ARIN", "AG18-ARIN", "BPM12-ARIN" ],
    "abuse_contacts" : [ "AG18-ARIN" ],
    "date_created" : "2000-11-03",
    "date_updated" : "2022-08-26",
    "source" : "https://rdap.arin.net/registry/autnum/18973"
  } ],
  "organization" : {
    "handle" : "TAGONL",
    "name" : "TAG Online Inc.",
    "address" : [ "6 Prospect Village Plaza", "Clifton", "NJ", "07013", "US" ],
    "street" : "Prospect Village Plaza",
    "city" : "Clifton",
    "state" : "NJ",
    "zip_code" : "07013",
    "country" : [ "US" ],
    "date_created" : "2000-11-03",
    "date_updated" : "2024-11-25",
    "source" : "https://rdap.arin.net/registry/entity/TAGONL",
    "addressCountry" : "US"
  },
  "technical_contacts" : [ {
    "handle" : "BPM12-ARIN",
    "name" : "BGP Peering Management",
    "email" : [ "bgp8273@tagonline.com" ],
    "phone" : [ "+1-973-783-5583" ],
    "source" : "https://rdap.arin.net/registry/entity/BPM12-ARIN"
  }, {
    "handle" : "AG18-ARIN",
    "name" : "Gideon, Andrew",
    "email" : [ "dns-admin@tagonline.com" ],
    "phone" : [ "+1-973-783-5583" ],
    "source" : "https://rdap.arin.net/registry/entity/AG18-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "AG18-ARIN",
    "name" : "Gideon, Andrew",
    "email" : [ "dns-admin@tagonline.com" ],
    "phone" : [ "+1-973-783-5583" ],
    "source" : "https://rdap.arin.net/registry/entity/AG18-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS58057	Securebit AG	CH
AS2914	NTT America, Inc.	US
AS54004	Cablevision Lightpath LLC	US

Upstreams

AS Number	Description	Country
AS58057	Securebit AG	CH
AS2914	NTT America, Inc.	US
AS54004	Cablevision Lightpath LLC	US