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AS21675 Environmental Science Associates

Q: 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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Environmental Science Associates esassoc.com

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AS Data

AS21675

AS21675 – Environmental Science Associates

AS Number	21675
AS Name	ESA-ASN-16800822
Organization	Environmental Science Associates (esa-31)
Country	US
Website	esassoc.com
Number of IPv4 Routes	0
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2015-02-11

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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:       21675
ASName:         ESA-ASN-16800822
ASHandle:       AS21675
RegDate:        2015-02-11
Updated:        2015-02-11
Comment:        http://www.esassoc.com
Comment:        Standard NOC hours are 7am to 06pm PST
Ref:            https://rdap.arin.net/registry/autnum/21675


OrgName:        Environmental Science Associates
OrgId:          ESA-31
Address:        550 Kearny St. Suite 800
City:           San Francisco
StateProv:      CA
PostalCode:     94108
Country:        US
RegDate:        2015-01-30
Updated:        2015-01-30
Ref:            https://rdap.arin.net/registry/entity/ESA-31


OrgNOCHandle: NOC32196-ARIN
OrgNOCName:   Network Operations Center
OrgNOCPhone:  +1-415-896-0332 
OrgNOCEmail:  arin-poc@esassoc.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/NOC32196-ARIN

OrgTechHandle: NOC32196-ARIN
OrgTechName:   Network Operations Center
OrgTechPhone:  +1-415-896-0332 
OrgTechEmail:  arin-poc@esassoc.com
OrgTechRef:    https://rdap.arin.net/registry/entity/NOC32196-ARIN

OrgAbuseHandle: NOC32196-ARIN
OrgAbuseName:   Network Operations Center
OrgAbusePhone:  +1-415-896-0332 
OrgAbuseEmail:  arin-poc@esassoc.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NOC32196-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" : "21675",
    "as_handle" : "AS21675",
    "as_name" : "ESA-ASN-16800822",
    "tech_contacts" : [ "NOC32196-ARIN" ],
    "abuse_contacts" : [ "NOC32196-ARIN" ],
    "date_created" : "2015-02-11",
    "date_updated" : "2015-02-11",
    "source" : "https://rdap.arin.net/registry/autnum/21675"
  } ],
  "organization" : {
    "handle" : "ESA-31",
    "name" : "Environmental Science Associates",
    "address" : [ "550 Kearny St. Suite 800", "San Francisco", "CA", "94108", "US" ],
    "street" : "Kearny St.",
    "city" : "San Francisco",
    "state" : "CA",
    "zip_code" : "94108",
    "country" : [ "US" ],
    "date_created" : "2015-01-30",
    "date_updated" : "2015-01-30",
    "source" : "https://rdap.arin.net/registry/entity/ESA-31",
    "addressCountry" : "US"
  },
  "technical_contacts" : [ {
    "handle" : "NOC32196-ARIN",
    "name" : "Network Operations Center",
    "email" : [ "arin-poc@esassoc.com" ],
    "phone" : [ "+1-415-896-0332" ],
    "source" : "https://rdap.arin.net/registry/entity/NOC32196-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "NOC32196-ARIN",
    "name" : "Network Operations Center",
    "email" : [ "arin-poc@esassoc.com" ],
    "phone" : [ "+1-415-896-0332" ],
    "source" : "https://rdap.arin.net/registry/entity/NOC32196-ARIN"
  } ]
}

Frequently Asked Questions

What is ASN AS21675?

ASN AS21675 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS21675?

AS21675 is listed under Environmental Science Associates.

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.