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AS21985 Masco Contractor Services

Q: Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

ASN Lookup Tool

Masco Contractor Services topbuild.com

US 2 Routes

AS Data

AS21985

AS21985 – Masco Contractor Services

AS Number	21985
AS Name	MASCO-CONTRACTOR-SERVICES
Organization	Masco Contractor Services (mcs-228)
Country	US
Website	topbuild.com
Number of IPv4 Routes	2
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2015-02-12

ASN Intelligence API for production workflows

Use ASN data for AS21985 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
66.194.193.0/24	AS21985	Masco Contractor Services	Masco Contractor Services	256
209.136.13.0/24	AS21985	Masco Contractor Services	Masco Contractor Services	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:       21985
ASName:         MASCO-CONTRACTOR-SERVICES
ASHandle:       AS21985
RegDate:        2015-02-12
Updated:        2015-02-12
Ref:            https://rdap.arin.net/registry/autnum/21985


OrgName:        Masco Contractor Services
OrgId:          MCS-228
Address:        475 N Williamson Blvd
City:           Daytona Beach
StateProv:      FL
PostalCode:     32114
Country:        US
RegDate:        2005-11-14
Updated:        2020-01-03
Ref:            https://rdap.arin.net/registry/entity/MCS-228


OrgTechHandle: RWC8-ARIN
OrgTechName:   Castro, Ray W
OrgTechPhone:  +1-386-763-4958 
OrgTechEmail:  ray.castro@topbuild.com
OrgTechRef:    https://rdap.arin.net/registry/entity/RWC8-ARIN

OrgAbuseHandle: RWC8-ARIN
OrgAbuseName:   Castro, Ray W
OrgAbusePhone:  +1-386-763-4958 
OrgAbuseEmail:  ray.castro@topbuild.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/RWC8-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" : "21985",
    "as_handle" : "AS21985",
    "as_name" : "MASCO-CONTRACTOR-SERVICES",
    "tech_contacts" : [ "RWC8-ARIN" ],
    "abuse_contacts" : [ "RWC8-ARIN" ],
    "date_created" : "2015-02-12",
    "date_updated" : "2015-02-12",
    "source" : "https://rdap.arin.net/registry/autnum/21985"
  } ],
  "organization" : {
    "handle" : "MCS-228",
    "name" : "Masco Contractor Services",
    "address" : [ "475 N Williamson Blvd", "Daytona Beach", "FL", "32114", "US" ],
    "street" : "N Williamson Blvd",
    "city" : "Daytona Beach",
    "state" : "FL",
    "zip_code" : "32114",
    "country" : [ "US" ],
    "date_created" : "2005-11-14",
    "date_updated" : "2020-01-03",
    "source" : "https://rdap.arin.net/registry/entity/MCS-228",
    "addressCountry" : "US"
  },
  "technical_contacts" : [ {
    "handle" : "RWC8-ARIN",
    "name" : "Castro, Ray W",
    "email" : [ "ray.castro@topbuild.com" ],
    "phone" : [ "+1-386-763-4958" ],
    "source" : "https://rdap.arin.net/registry/entity/RWC8-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "RWC8-ARIN",
    "name" : "Castro, Ray W",
    "email" : [ "ray.castro@topbuild.com" ],
    "phone" : [ "+1-386-763-4958" ],
    "source" : "https://rdap.arin.net/registry/entity/RWC8-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS20115	Charter Communications LLC	US
AS271253	LINK BRASIL TELECOMUNICACOES LTDA	BR
AS15830	Equinix EMEA Acquisition Enterprises B.V.	NL
AS15830	Equinix (EMEA) Acquisition Enterprises B.V.	NL
AS3356	Level 3 Parent, LLC	US

Upstreams

AS Number	Description	Country
AS20115	Charter Communications LLC	US
AS15830	Equinix EMEA Acquisition Enterprises B.V.	NL
AS3356	Level 3 Parent, LLC	US

Frequently Asked Questions

What is ASN AS21985?

ASN AS21985 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS21985?

AS21985 is listed under Masco Contractor Services.

What do peers, upstreams, and downstreams mean?

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 included here?

WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access full ASN table data?

This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.