Report for 40444

Name

ASN-CC - Constant Contact, Inc, 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 AS2.0) 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.

40444 ASN-CC - Constant Contact, Inc, US

  Adjacency:     4  Upstream:     4  Downstream:     0
  Upstream Adjacent AS list
    AS6461          ZAYO-6461 - Zayo Bandwidth, US
    AS398427        MARKLEY-NETWORK-SERVICES - Markley Network Services, LLC, US
    AS3356          LEVEL3 - Level 3 Parent, LLC, US
    AS33652         CMCS - Comcast Cable Communications, LLC, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
22430 AS40444        ORIGIN  Originate:       2560 /20.68  Transit:          0 /0.00  ASN-CC - Constant Contact, Inc, US

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       %
22896 AS40444       ASN-CC - Constant Contact, Inc, US                 6      2      1      5      1  16.67%


  Prefix               AS Path                              Aggregation Suggestion
  205.207.104.0/22     4777 2516 1299 46887 398427 40444 + Announce - aggregate of 205.207.104.0/23 (4777 2516 1299 46887 398427 40444) and 205.207.106.0/23 (4777 2516 1299 46887 398427 40444)
  205.207.104.0/23     4777 2516 1299 46887 398427 40444 - Withdrawn - aggregated with 205.207.106.0/23 (4777 2516 1299 46887 398427 40444)
  205.207.104.0/24     4777 2516 3356 40444   
  205.207.106.0/23     4777 2516 1299 46887 398427 40444 - Withdrawn - aggregated with 205.207.104.0/23 (4777 2516 1299 46887 398427 40444)
  208.75.120.0/23      4608 7575 6461 40444   
  208.75.122.0/23      4777 2516 1299 46887 398427 40444   
  216.21.230.0/24      4777 2516 7922 33652 40444   

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

AS40444   5 More Specifics   6 Total Advertisements   ASN-CC - Constant Contact, Inc, US
    205.207.104.0/23              205.207.104.0/22
    205.207.104.0/24              205.207.104.0/22
    205.207.106.0/23              205.207.104.0/22
    208.75.120.0/23               208.75.120.0/22
    208.75.122.0/23               208.75.120.0/22

Whois Entry

whois: 402332

IANA has recorded AS40444 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS40444\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.
             #
             
             
             ASNumber:       40444
             ASName:         ASN-CC
             ASHandle:       AS40444
             RegDate:        2007-02-21
             Updated:        2007-02-21
             Ref:            https://rdap.arin.net/registry/autnum/40444
             
             
             OrgName:        Constant Contact, Inc
             OrgId:          CONST-21
             Address:        1601 Trapelo Road
             Address:        Suite 329
             City:           Waltham
             StateProv:      MA
             PostalCode:     02451
             Country:        US
             RegDate:        2006-12-19
             Updated:        2008-07-03
             Ref:            https://rdap.arin.net/registry/entity/CONST-21
             
             
             OrgNOCHandle: CCO156-ARIN
             OrgNOCName:   Constant Contact Operations
             OrgNOCPhone:  +1-781-482-7472 
             OrgNOCEmail:  aladkani@constantcontact.com
             OrgNOCRef:    https://rdap.arin.net/registry/entity/CCO156-ARIN
             
             OrgAbuseHandle: ABUSE1897-ARIN
             OrgAbuseName:   Constant Contact Abuse
             OrgAbusePhone:  +1-781-472-8103 
             OrgAbuseEmail:  abuse@constantcontact.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE1897-ARIN
             
             OrgTechHandle: CCO156-ARIN
             OrgTechName:   Constant Contact Operations
             OrgTechPhone:  +1-781-482-7472 
             OrgTechEmail:  aladkani@constantcontact.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/CCO156-ARIN
             
             RTechHandle: CCO156-ARIN
             RTechName:   Constant Contact Operations
             RTechPhone:  +1-781-482-7472 
             RTechEmail:  aladkani@constantcontact.com
             RTechRef:    https://rdap.arin.net/registry/entity/CCO156-ARIN
             
             RAbuseHandle: CCO156-ARIN
             RAbuseName:   Constant Contact Operations
             RAbusePhone:  +1-781-482-7472 
             RAbuseEmail:  aladkani@constantcontact.com
             RAbuseRef:    https://rdap.arin.net/registry/entity/CCO156-ARIN
             
             RNOCHandle: CCO156-ARIN
             RNOCName:   Constant Contact Operations
             RNOCPhone:  +1-781-482-7472 
             RNOCEmail:  aladkani@constantcontact.com
             RNOCRef:    https://rdap.arin.net/registry/entity/CCO156-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.
             #