ASN AS23351 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS23351?

AS23351 is listed under Ansys, Inc. Lebanon NH.

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.

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AS23351 Ansys, Inc. Lebanon NH

ASN Lookup Tool

Ansys, Inc. Lebanon NH ansys.com

US 1 Routes

AS Data

AS23351

AS23351 – Ansys, Inc. Lebanon NH

AS Number	23351
AS Name	ANSYSNH
Organization	Ansys, Inc. Lebanon NH (ansys-1)
Country	US
Website	ansys.com
Number of IPv4 Routes	1
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2002-03-04

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Use ASN data for AS23351 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
204.10.84.0/22	AS23351	Ansys, Inc. Lebanon NH	Ansys, Inc. Lebanon NH	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:       23351
ASName:         ANSYSNH
ASHandle:       AS23351
RegDate:        2002-03-04
Updated:        2024-03-04
Ref:            https://rdap.arin.net/registry/autnum/23351


OrgName:        Ansys, Inc. - Lebanon NH
OrgId:          ANSYS-1
Address:        10 Cavendish Court
Address:        Centerra Resource Park
City:           Lebanon
StateProv:      NH
PostalCode:     03766-1442
Country:        US
RegDate:        2008-08-01
Updated:        2024-03-04
Ref:            https://rdap.arin.net/registry/entity/ANSYS-1


OrgAbuseHandle: HVJ-ARIN
OrgAbuseName:   Jones, Harold Vernon
OrgAbusePhone:  +1-603-643-3967 
OrgAbuseEmail:  Vernon.Jones@ansys.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/HVJ-ARIN

OrgTechHandle: HVJ-ARIN
OrgTechName:   Jones, Harold Vernon
OrgTechPhone:  +1-603-643-3967 
OrgTechEmail:  Vernon.Jones@ansys.com
OrgTechRef:    https://rdap.arin.net/registry/entity/HVJ-ARIN

OrgAbuseHandle: AJR35-ARIN
OrgAbuseName:   Riccitelli, Anthony Joseph
OrgAbusePhone:  +1-724-820-4069 
OrgAbuseEmail:  tony.riccitelli@ansys.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/AJR35-ARIN

OrgRoutingHandle: AJR35-ARIN
OrgRoutingName:   Riccitelli, Anthony Joseph
OrgRoutingPhone:  +1-724-820-4069 
OrgRoutingEmail:  tony.riccitelli@ansys.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/AJR35-ARIN

OrgNOCHandle: AJR35-ARIN
OrgNOCName:   Riccitelli, Anthony Joseph
OrgNOCPhone:  +1-724-820-4069 
OrgNOCEmail:  tony.riccitelli@ansys.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/AJR35-ARIN

RNOCHandle: AJR35-ARIN
RNOCName:   Riccitelli, Anthony Joseph
RNOCPhone:  +1-724-820-4069 
RNOCEmail:  tony.riccitelli@ansys.com
RNOCRef:    https://rdap.arin.net/registry/entity/AJR35-ARIN

RTechHandle: AJR35-ARIN
RTechName:   Riccitelli, Anthony Joseph
RTechPhone:  +1-724-820-4069 
RTechEmail:  tony.riccitelli@ansys.com
RTechRef:    https://rdap.arin.net/registry/entity/AJR35-ARIN

RAbuseHandle: AJR35-ARIN
RAbuseName:   Riccitelli, Anthony Joseph
RAbusePhone:  +1-724-820-4069 
RAbuseEmail:  tony.riccitelli@ansys.com
RAbuseRef:    https://rdap.arin.net/registry/entity/AJR35-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" : "23351",
    "as_handle" : "AS23351",
    "as_name" : "ANSYSNH",
    "tech_contacts" : [ "HVJ-ARIN", "AJR35-ARIN", "AJR35-ARIN" ],
    "abuse_contacts" : [ "HVJ-ARIN", "AJR35-ARIN", "AJR35-ARIN" ],
    "date_created" : "2002-03-04",
    "date_updated" : "2024-03-04",
    "source" : "https://rdap.arin.net/registry/autnum/23351"
  } ],
  "organization" : {
    "handle" : "ANSYS-1",
    "name" : "Ansys, Inc. - Lebanon NH",
    "address" : [ "10 Cavendish Court", "Centerra Resource Park", "Lebanon", "NH", "03766-1442", "US" ],
    "street" : "Cavendish Court",
    "city" : "Lebanon",
    "state" : "NH",
    "zip_code" : "03766-1442",
    "country" : [ "US" ],
    "date_created" : "2008-08-01",
    "date_updated" : "2024-03-04",
    "source" : "https://rdap.arin.net/registry/entity/ANSYS-1",
    "addressCountry" : "US"
  },
  "technical_contacts" : [ {
    "handle" : "HVJ-ARIN",
    "name" : "Jones, Harold Vernon",
    "email" : [ "Vernon.Jones@ansys.com" ],
    "phone" : [ "+1-603-643-3967" ],
    "source" : "https://rdap.arin.net/registry/entity/HVJ-ARIN"
  }, {
    "handle" : "AJR35-ARIN",
    "name" : "Riccitelli, Anthony Joseph",
    "email" : [ "tony.riccitelli@ansys.com" ],
    "phone" : [ "+1-724-820-4069" ],
    "source" : "https://rdap.arin.net/registry/entity/AJR35-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "HVJ-ARIN",
    "name" : "Jones, Harold Vernon",
    "email" : [ "Vernon.Jones@ansys.com" ],
    "phone" : [ "+1-603-643-3967" ],
    "source" : "https://rdap.arin.net/registry/entity/HVJ-ARIN"
  }, {
    "handle" : "AJR35-ARIN",
    "name" : "Riccitelli, Anthony Joseph",
    "email" : [ "tony.riccitelli@ansys.com" ],
    "phone" : [ "+1-724-820-4069" ],
    "source" : "https://rdap.arin.net/registry/entity/AJR35-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS701	Verizon Business/UUnet	US
AS701	Verizon Business	US
AS17356	Vermont Telephone Company, Inc.	US

Upstreams

AS Number	Description	Country
AS701	Verizon Business	US
AS17356	Vermont Telephone Company, Inc.	US