Report for 19855

Name

MASERGY - Masergy Communications, 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 AS6447) 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.

19855 MASERGY, US

  Adjacency:    25  Upstream:     8  Downstream:    17
  Upstream Adjacent AS list
    AS12956         TELXIUS TELXIUS Cable, ES
    AS7473          SINGTEL-AS-AP Singapore Telecommunications Ltd, SG
    AS7474          OPTUSCOM-AS01-AU SingTel Optus Pty Ltd, AU
    AS174           COGENT-174, US
    AS3356          LEVEL3, US
    AS3491          CONSOLE-CONNECT-ASN, US
    AS7922          COMCAST-7922, US
    AS33491         COMCAST-33491, US
  Downstream Adjacent AS list
    AS11199         SHOWNETSAS, US
    AS33054         MCCRACKENFS, US
    AS16541         ERICKSON-AS, US
    AS20427         AAAE, US
    AS12222         AKAMAI, US
    AS13860         LFG, US
    AS23406         CHOATEHALLSTEWART, US
    AS14514         PHJW, US
    AS15126         SMAI, US
    AS26428         TALBOTS, US
    AS22775         MOORECAP, US
    AS543           HP-POLY, US
    AS394301        DEXCOM-INC, US
    AS15027         FH-ASN-15027, US
    AS20340         CALLTOWER, US
    AS40399         MASERGY-CLOUD-COMMUNICATIONS, US
    AS33014         MARLINLEASING, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
1324  AS19855        ORG+TRN Originate:     198400 /14.40  Transit:       4608 /19.83 MASERGY, 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       %
  992 AS19855       MASERGY, US                                       98     66      2     34     64  65.31%


  Prefix               AS Path                              Aggregation Suggestion
  45.45.151.0/24       6939 7922 19855        
  64.47.0.0/16         57866 3356 19855       
  64.47.0.0/23         57866 3356 19855     - Withdrawn - matching aggregate 64.47.0.0/16 57866 3356 19855
  64.47.3.0/24         57866 3356 19855     - Withdrawn - matching aggregate 64.47.0.0/16 57866 3356 19855
  64.47.4.0/24         57866 3356 19855     - Withdrawn - matching aggregate 64.47.0.0/16 57866 3356 19855
  64.47.5.0/24         57866 3356 19855     - Withdrawn - matching aggregate 64.47.0.0/16 57866 3356 19855
  64.47.14.0/24        57866 3356 19855     - Withdrawn - matching aggregate 64.47.0.0/16 57866 3356 19855
  64.47.18.0/24        57866 3356 19855     - Withdrawn - matching aggregate 64.47.0.0/16 57866 3356 19855
  64.47.21.0/24        57866 3356 19855     - Withdrawn - matching aggregate 64.47.0.0/16 57866 3356 19855
  64.47.24.0/24        57866 3356 19855     - Withdrawn - matching aggregate 64.47.0.0/16 57866 3356 19855
  64.47.27.0/24        57866 3356 19855     - Withdrawn - matching aggregate 64.47.0.0/16 57866 3356 19855
  64.47.28.0/23        57866 3356 19855     - Withdrawn - matching aggregate 64.47.0.0/16 57866 3356 19855
  64.47.30.0/23        57866 3356 19855     - Withdrawn - matching aggregate 64.47.0.0/16 57866 3356 19855
  64.47.36.0/23        57866 3356 19855     - Withdrawn - matching aggregate 64.47.0.0/16 57866 3356 19855
  64.47.40.0/23        57866 3356 19855     - Withdrawn - matching aggregate 64.47.0.0/16 57866 3356 19855
  64.47.43.0/24        57866 3356 19855     - Withdrawn - matching aggregate 64.47.0.0/16 57866 3356 19855
  64.47.46.0/24        3257 7922 19855        
  64.47.48.0/24        57866 3356 19855     - Withdrawn - matching aggregate 64.47.0.0/16 57866 3356 19855
  64.47.50.0/23        57866 3356 19855     - Withdrawn - matching aggregate 64.47.0.0/16 57866 3356 19855
  64.47.56.0/23        57866 3356 19855     - Withdrawn - matching aggregate 64.47.0.0/16 57866 3356 19855
  64.47.61.0/24        57866 3356 19855     - Withdrawn - matching aggregate 64.47.0.0/16 57866 3356 19855
  64.47.62.0/23        57866 3356 19855     - Withdrawn - matching aggregate 64.47.0.0/16 57866 3356 19855
  64.47.72.0/22        57866 3356 19855     - Withdrawn - matching aggregate 64.47.0.0/16 57866 3356 19855
  64.47.76.0/22        57866 3356 19855     - Withdrawn - matching aggregate 64.47.0.0/16 57866 3356 19855
  64.47.84.0/22        57866 3356 19855     - Withdrawn - matching aggregate 64.47.0.0/16 57866 3356 19855
  64.47.88.0/22        57866 3356 19855     - Withdrawn - matching aggregate 64.47.0.0/16 57866 3356 19855
  64.47.92.0/22        57866 3356 19855     - Withdrawn - matching aggregate 64.47.0.0/16 57866 3356 19855
  64.47.96.0/22        57866 3356 19855     - Withdrawn - matching aggregate 64.47.0.0/16 57866 3356 19855
  64.47.100.0/22       57866 3356 19855     - Withdrawn - matching aggregate 64.47.0.0/16 57866 3356 19855
  64.47.105.0/24       6939 12956 19855       
  64.47.107.0/24       57866 3356 19855     - Withdrawn - matching aggregate 64.47.0.0/16 57866 3356 19855
  64.47.112.0/22       57866 3356 19855     - Withdrawn - matching aggregate 64.47.0.0/16 57866 3356 19855
  64.47.117.0/24       57866 3356 19855     - Withdrawn - matching aggregate 64.47.0.0/16 57866 3356 19855
  64.47.118.0/24       57866 3356 19855     - Withdrawn - matching aggregate 64.47.0.0/16 57866 3356 19855
  64.47.120.0/22       57866 3356 19855     - Withdrawn - matching aggregate 64.47.0.0/16 57866 3356 19855
  64.47.128.0/24       57866 3356 19855     - Withdrawn - matching aggregate 64.47.0.0/16 57866 3356 19855
  64.47.160.0/22       57866 3356 19855     - Withdrawn - matching aggregate 64.47.0.0/16 57866 3356 19855
  64.47.164.0/22       57866 3356 19855     - Withdrawn - matching aggregate 64.47.0.0/16 57866 3356 19855
  64.47.164.0/24       57866 3356 19855     - Withdrawn - matching aggregate 64.47.0.0/16 57866 3356 19855
  64.47.169.0/24       57866 3356 19855     - Withdrawn - matching aggregate 64.47.0.0/16 57866 3356 19855
  64.47.180.0/24       57866 3356 19855     - Withdrawn - matching aggregate 64.47.0.0/16 57866 3356 19855
  64.47.184.0/24       57866 3356 19855     - Withdrawn - matching aggregate 64.47.0.0/16 57866 3356 19855
  64.47.187.0/24       57866 3356 19855     - Withdrawn - matching aggregate 64.47.0.0/16 57866 3356 19855
  64.47.188.0/22       57866 3356 19855     - Withdrawn - matching aggregate 64.47.0.0/16 57866 3356 19855
  64.47.197.0/24       57866 3356 19855     - Withdrawn - matching aggregate 64.47.0.0/16 57866 3356 19855
  64.47.208.0/22       57866 3356 19855     - Withdrawn - matching aggregate 64.47.0.0/16 57866 3356 19855
  64.47.214.0/24       57866 3356 19855     - Withdrawn - matching aggregate 64.47.0.0/16 57866 3356 19855
  64.47.216.0/23       3257 7922 19855      + Announce - aggregate of 64.47.216.0/24 (3257 7922 19855) and 64.47.217.0/24 (3257 7922 19855)
  64.47.216.0/24       3257 7922 19855      - Withdrawn - aggregated with 64.47.217.0/24 (3257 7922 19855)
  64.47.217.0/24       3257 7922 19855      - Withdrawn - aggregated with 64.47.216.0/24 (3257 7922 19855)
  64.47.218.0/24       2497 174 19855         
  64.47.224.0/22       57866 3356 19855     - Withdrawn - matching aggregate 64.47.0.0/16 57866 3356 19855
  64.47.228.0/22       57866 3356 19855     - Withdrawn - matching aggregate 64.47.0.0/16 57866 3356 19855
  64.47.232.0/24       57866 3356 19855     - Withdrawn - matching aggregate 64.47.0.0/16 57866 3356 19855
  64.47.233.0/24       6939 12956 19855       
  64.47.235.0/24       57866 3356 19855     - Withdrawn - matching aggregate 64.47.0.0/16 57866 3356 19855
  64.47.238.0/24       57866 3356 19855     - Withdrawn - matching aggregate 64.47.0.0/16 57866 3356 19855
  64.47.241.0/24       57866 3356 19855     - Withdrawn - matching aggregate 64.47.0.0/16 57866 3356 19855
  64.47.242.0/24       57866 3356 19855     - Withdrawn - matching aggregate 64.47.0.0/16 57866 3356 19855
  64.47.246.0/23       57866 3356 19855     - Withdrawn - matching aggregate 64.47.0.0/16 57866 3356 19855
  64.47.252.0/24       57866 3356 19855     - Withdrawn - matching aggregate 64.47.0.0/16 57866 3356 19855
  64.47.253.0/24       57866 3356 19855     - Withdrawn - matching aggregate 64.47.0.0/16 57866 3356 19855
  64.138.0.0/17        293 3491 19855         
  64.138.2.0/23        293 3491 19855       - Withdrawn - matching aggregate 64.138.0.0/17 293 3491 19855
  64.138.4.0/23        293 3491 19855       - Withdrawn - matching aggregate 64.138.0.0/17 293 3491 19855
  64.138.6.0/23        6939 3491 19855        
  64.138.8.0/23        6939 7473 7474 19855   
  64.138.10.0/23       293 3491 19855       - Withdrawn - matching aggregate 64.138.0.0/17 293 3491 19855
  64.138.20.0/22       6939 7473 7474 19855   
  64.138.26.0/24       293 3491 19855       - Withdrawn - matching aggregate 64.138.0.0/17 293 3491 19855
  64.138.31.0/24       57866 3356 19855       
  64.138.128.0/18      293 3491 19855         
  64.138.128.0/22      293 3491 19855       - Withdrawn - matching aggregate 64.138.128.0/18 293 3491 19855
  64.138.133.0/24      3257 7922 19855 19855 19855   
  64.138.134.0/24      6939 7922 19855 19855 19855   
  64.138.137.0/24      6939 12956 19855       
  64.138.140.0/22      293 3491 19855       - Withdrawn - matching aggregate 64.138.128.0/18 293 3491 19855
  64.138.144.0/22      293 3491 19855       - Withdrawn - matching aggregate 64.138.128.0/18 293 3491 19855
  64.138.149.0/24      3257 7922 19855 19855 19855   
  64.138.150.0/24      6939 7922 19855 19855 19855   
  64.138.153.0/24      6939 12956 19855       
  64.138.156.0/22      293 3491 19855       - Withdrawn - matching aggregate 64.138.128.0/18 293 3491 19855
  65.96.0.0/18         2497 3491 19855        
  65.96.128.0/18       6939 7473 7474 19855   
  74.116.49.0/24       293 3491 19855         
  80.241.64.0/20       57866 3356 19855       
  93.187.16.0/21       57866 3356 19855       
  94.199.128.0/21      57866 3356 19855       
  140.242.146.0/23     57866 3356 19855     + Announce - aggregate of 140.242.146.0/24 (57866 3356 19855) and 140.242.147.0/24 (57866 3356 19855)
  140.242.146.0/24     57866 3356 19855     - Withdrawn - aggregated with 140.242.147.0/24 (57866 3356 19855)
  140.242.147.0/24     57866 3356 19855     - Withdrawn - aggregated with 140.242.146.0/24 (57866 3356 19855)
  169.143.243.0/24     6939 7473 19855        
  185.60.28.0/22       57866 3356 19855       
  185.60.31.0/24       57866 3356 19855     - Withdrawn - matching aggregate 185.60.28.0/22 57866 3356 19855
  192.131.149.0/24     57866 3356 19855       
  192.197.247.0/24     57866 3356 19855       
  198.73.224.0/24      57866 3356 19855       
  204.139.40.0/24      57866 3356 33491 19855   
  204.139.45.0/24      57866 3356 33491 19855   
  204.139.49.0/24      57866 3356 33491 19855   

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

AS19855   65 More Specifics   75 Total Advertisements   MASERGY, US
    64.47.14.0/24                 64.47.0.0/16
    64.47.18.0/24                 64.47.0.0/16
    64.47.21.0/24                 64.47.0.0/16
    64.47.28.0/23                 64.47.0.0/16
    64.47.40.0/23                 64.47.0.0/16
    64.47.43.0/24                 64.47.0.0/16
    64.47.46.0/24                 64.47.0.0/16
    64.47.48.0/24                 64.47.0.0/16
    64.47.50.0/23                 64.47.0.0/16
    64.47.62.0/23                 64.47.0.0/16
    64.47.63.0/24                 64.47.0.0/16
    64.47.76.0/22                 64.47.0.0/16
    64.47.84.0/22                 64.47.0.0/16
    64.47.84.0/24                 64.47.0.0/16
    64.47.88.0/22                 64.47.0.0/16
    64.47.92.0/22                 64.47.0.0/16
    64.47.96.0/22                 64.47.0.0/16
    64.47.100.0/22                64.47.0.0/16
    64.47.105.0/24                64.47.0.0/16
    64.47.112.0/22                64.47.0.0/16
    64.47.117.0/24                64.47.0.0/16
    64.47.118.0/24                64.47.0.0/16
    64.47.120.0/22                64.47.0.0/16
    64.47.160.0/22                64.47.0.0/16
    64.47.164.0/22                64.47.0.0/16
    64.47.164.0/24                64.47.0.0/16
    64.47.174.0/24                64.47.0.0/16
    64.47.180.0/24                64.47.0.0/16
    64.47.184.0/24                64.47.0.0/16
    64.47.185.0/24                64.47.0.0/16
    64.47.186.0/24                64.47.0.0/16
    64.47.188.0/22                64.47.0.0/16
    64.47.197.0/24                64.47.0.0/16
    64.47.214.0/24                64.47.0.0/16
    64.47.216.0/24                64.47.0.0/16
    64.47.217.0/24                64.47.0.0/16
    64.47.218.0/24                64.47.0.0/16
    64.47.224.0/22                64.47.0.0/16
    64.47.228.0/22                64.47.0.0/16
    64.47.232.0/24                64.47.0.0/16
    64.47.233.0/24                64.47.0.0/16
    64.47.235.0/24                64.47.0.0/16
    64.47.238.0/24                64.47.0.0/16
    64.47.242.0/24                64.47.0.0/16
    64.47.244.0/24                64.47.0.0/16
    64.138.2.0/23                 64.138.0.0/17
    64.138.4.0/23                 64.138.0.0/17
    64.138.6.0/23                 64.138.0.0/17
    64.138.8.0/23                 64.138.0.0/17
    64.138.10.0/23                64.138.0.0/17
    64.138.20.0/22                64.138.0.0/17
    64.138.26.0/24                64.138.0.0/17
    64.138.128.0/22               64.138.128.0/18
    64.138.138.0/24               64.138.128.0/18
    64.138.140.0/22               64.138.128.0/18
    64.138.144.0/22               64.138.128.0/18
    65.96.0.0/18                  65.96.0.0/16
    65.96.128.0/18                65.96.0.0/16
    80.241.72.0/24                80.241.64.0/20
    80.241.76.0/24                80.241.64.0/20
    96.63.107.0/24                96.63.64.0/18
    140.242.146.0/24              140.242.0.0/16
    140.242.147.0/24              140.242.0.0/16
    169.143.243.0/24              169.143.0.0/16
    185.60.31.0/24                185.60.28.0/22
    64.138.134.0/24               64.138.128.0/18

Prefixes added and withdrawn by this origin AS in the past 7 days.

    + 64.138.138.0/24             Announced
    + 80.241.72.0/24              Announced
    + 80.241.76.0/24              Announced
    + 96.63.107.0/24              Announced
    + 169.143.243.0/24            Announced
    - 64.138.134.0/24             Withdrawn

Whois Entry

whois: 402603

IANA has recorded AS19855 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS19855\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:       19855
             ASName:         MASERGY
             ASHandle:       AS19855
             RegDate:        2001-02-21
             Updated:        2012-03-02
             Ref:            https://rdap.arin.net/registry/autnum/19855
             
             
             OrgName:        Masergy Communications, Inc.
             OrgId:          MSRG
             Address:        2740 NORTH DALLAS PARKWAY
             Address:        SUITE 260
             City:           Plano
             StateProv:      TX
             PostalCode:     75093
             Country:        US
             RegDate:        
             Updated:        2024-11-25
             Comment:        http://www.masergy.com
             Comment:        1-877-4MASERGY
             Ref:            https://rdap.arin.net/registry/entity/MSRG
             
             
             OrgAbuseHandle: MASER1-ARIN
             OrgAbuseName:   Masergy-Abuse
             OrgAbusePhone:  +1-877-462-7374 
             OrgAbuseEmail:  abuse@masergy.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/MASER1-ARIN
             
             OrgTechHandle: ZM130-ARIN
             OrgTechName:   Masergy Communications
             OrgTechPhone:  +1-877-462-7374 
             OrgTechEmail:  arin@masergy.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/ZM130-ARIN
             
             OrgNOCHandle: MASER-ARIN
             OrgNOCName:   Masergy-NOC
             OrgNOCPhone:  +1-877-462-7374 
             OrgNOCEmail:  noc@masergy.com
             OrgNOCRef:    https://rdap.arin.net/registry/entity/MASER-ARIN
             
             RTechHandle: ZM130-ARIN
             RTechName:   Masergy Communications
             RTechPhone:  +1-877-462-7374 
             RTechEmail:  arin@masergy.com
             RTechRef:    https://rdap.arin.net/registry/entity/ZM130-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.
             #