Report for 21675

Name

ESA-ASN-16800822 - Environmental Science Associates, US

AS Adjacency Report

In the context of this report "Upstream" indicates that there is an adjacent AS that lines between the BGP table collection point (in this case at AS4637) and the specified AS. Similarly, "Downstream" refers to an adjacent AS that lies beyond the specified AS. This upstream / downstream categorisation is strictly a description relative topology, and should not be confused with provider / customer / peer inter-AS relationships.

21675 METACARTA-MA - MetaCarta

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS7911    LVLT-7911 - Level 3 Communications, Inc.

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
21132 AS21675  ORIGIN  Originate:        256 /24.00  Transit:          0 /0.00  METACARTA-MA - MetaCarta

Aggregation Suggestions

        Filter: Aggregates, Specifics

This report does not take into account conditions local to each origin AS in terms of policy or traffic engineering requirements, so this is an approximate guideline as to aggregation possibilities.

 Rank AS            AS Name                                      Current  Wthdw  Aggte  Annce Redctn       %
13935 AS21675 METACARTA-MA - MetaCarta                      1      0      0      1      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  65.77.47.0/24        4637 3356 7911 21675   

Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.

AS21675   1 More Specifics   1 Total Advertisements   METACARTA-MA - MetaCarta, Inc.
    65.77.47.0/24                 65.77.0.0/16

Whois Entry

whois: 402332

IANA has recorded AS21675 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS21675\n             
             #
             # 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.
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             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:  +1-415-896-5900 
             OrgNOCEmail:  arin-poc@esassoc.com
             OrgNOCRef:    https://rdap.arin.net/registry/entity/NOC32196-ARIN
             
             OrgTechHandle: NOC32196-ARIN
             OrgTechName:   Network Operations Center
             OrgTechPhone:  +1-415-896-5900 
             OrgTechEmail:  arin-poc@esassoc.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/NOC32196-ARIN
             
             OrgAbuseHandle: NOC32196-ARIN
             OrgAbuseName:   Network Operations Center
             OrgAbusePhone:  +1-415-896-5900 
             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.
             #