What is ASN AS393946?

ASN AS393946 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS393946?

AS393946 is listed under Renesas Electronics America 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?

The page shows a preview of large ASN datasets. Use the page controls to load more rows, and upgrade to a paid plan for complete access.

AS393946 Renesas Electronics America Inc.

ASN Lookup Tool

Renesas Electronics America Inc. gr.renesas.com

US 17 Routes

AS Data

AS393946

AS393946 – Renesas Electronics America Inc.

AS Number	393946
AS Name	INTERSIL-SEMI
Organization	Renesas Electronics America Inc. (rea-21)
Country	US
Website	gr.renesas.com
Number of IPv4 Routes	17
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2015-05-04

ASN Intelligence API for production workflows

Use ASN data for AS393946 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

Get ASN API Key ASN API Docs

IP Ranges

Route	Origin	Origin Name	ISP	# IPs
192.157.182.0/24	AS393946	Renesas Electronics America Inc.	Renesas Electronics America Inc.	256
192.91.135.0/24	AS393946	Renesas Electronics America Inc.	Renesas Electronics America Inc.	256
193.141.220.0/24	AS393946	Renesas Electronics America Inc.	Renesas Electronics Europe GmbH	256
192.157.179.0/24	AS393946	Renesas Electronics America Inc.	Renesas Electronics America Inc.	256
193.141.192.0/21	AS393946	Renesas Electronics America Inc.	Renesas Electronics Europe GmbH	2048
193.141.200.0/21	AS393946	Renesas Electronics America Inc.	Renesas Electronics Europe GmbH	2048
193.141.219.0/24	AS393946	Renesas Electronics America Inc.	Renesas Electronics Europe GmbH	256
192.48.120.0/24	AS393946	Renesas Electronics America Inc.	Renesas Electronics America Inc.	256
194.15.148.0/23	AS393946	Renesas Electronics America Inc.	Renesas Electronics Germany GmbH	512
193.141.208.0/20	AS393946	Renesas Electronics America Inc.	Renesas Electronics Europe GmbH	4096

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:       393946
ASName:         INTERSIL-SEMI
ASHandle:       AS393946
RegDate:        2015-05-04
Updated:        2022-08-19
Ref:            https://rdap.arin.net/registry/autnum/393946


OrgName:        Renesas Electronics America Inc.
OrgId:          REA-21
Address:        6024 Silver Creek Valley RD
City:           San Jose
StateProv:      CA
PostalCode:     95138
Country:        US
RegDate:        2022-03-22
Updated:        2022-05-26
Ref:            https://rdap.arin.net/registry/entity/REA-21


OrgAbuseHandle: ZI20-ARIN
OrgAbuseName:   Intersil Network Operations
OrgAbusePhone:  +1-321-724-7000 
OrgAbuseEmail:  dns-info@gr.renesas.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ZI20-ARIN

OrgTechHandle: ZI20-ARIN
OrgTechName:   Intersil Network Operations
OrgTechPhone:  +1-321-724-7000 
OrgTechEmail:  dns-info@gr.renesas.com
OrgTechRef:    https://rdap.arin.net/registry/entity/ZI20-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" : "393946",
    "as_handle" : "AS393946",
    "as_name" : "INTERSIL-SEMI",
    "tech_contacts" : [ "ZI20-ARIN" ],
    "abuse_contacts" : [ "ZI20-ARIN" ],
    "date_created" : "2015-05-04",
    "date_updated" : "2022-08-19",
    "source" : "https://rdap.arin.net/registry/autnum/393946"
  } ],
  "organization" : {
    "handle" : "REA-21",
    "name" : "Renesas Electronics America Inc.",
    "address" : [ "6024 Silver Creek Valley RD", "San Jose", "CA", "95138", "US" ],
    "street" : "Silver Creek Valley Rd",
    "city" : "San Jose",
    "state" : "CA",
    "zip_code" : "95138",
    "country" : [ "US" ],
    "date_created" : "2022-03-22",
    "date_updated" : "2022-05-26",
    "source" : "https://rdap.arin.net/registry/entity/REA-21",
    "addressCountry" : "US"
  },
  "technical_contacts" : [ {
    "handle" : "ZI20-ARIN",
    "name" : "Intersil Network Operations",
    "email" : [ "dns-info@gr.renesas.com" ],
    "phone" : [ "+1-321-724-7000" ],
    "source" : "https://rdap.arin.net/registry/entity/ZI20-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "ZI20-ARIN",
    "name" : "Intersil Network Operations",
    "email" : [ "dns-info@gr.renesas.com" ],
    "phone" : [ "+1-321-724-7000" ],
    "source" : "https://rdap.arin.net/registry/entity/ZI20-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS3356	Level 3 Parent, LLC	US

Upstreams

AS Number	Description	Country
AS3356	Level 3 Parent, LLC	US