Report for 12163

Name

AMHERST-HOLDINGS - Amherst Holdings LLC, 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.

12163 BNSI - Broadband Network Services, Inc.

  Adjacency:     3  Upstream:     2  Downstream:     1
  Upstream Adjacent AS list
    AS7018    ATT-INTERNET4 - AT&T WorldNet Services
    AS701     UUNET - MCI Communications Services, Inc. d/b/a Verizon Business
  Downstream Adjacent AS list
    AS29734   IAP-CHARLOTTESVILLE - International Auto Parts Inc.

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
6355  AS12163  ORG+TRN Originate:       9472 /18.79  Transit:        256 /24.00 BNSI - Broadband Network Services, Inc.

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       %
 1086 AS12163 BNSI - Broadband Network Services, Inc.      20     13      1      8     12  60.00%


  Prefix               AS Path                              Aggregation Suggestion
  12.4.193.0/24        4637 3491 701 12163    
  12.4.194.0/24        4637 3491 701 12163    
  12.4.196.0/22        4637 3491 701 12163    
  12.4.199.0/24        4637 3491 701 12163  - Withdrawn - matching aggregate 12.4.196.0/22 4637 3491 701 12163
  12.5.48.0/20         4637 3491 701 12163  + Announce - aggregate of 12.5.48.0/21 (4637 3491 701 12163) and 12.5.56.0/21 (4637 3491 701 12163)
  12.5.48.0/21         4637 3491 701 12163  - Withdrawn - aggregated with 12.5.56.0/21 (4637 3491 701 12163)
  12.5.48.0/24         4637 3491 701 12163  - Withdrawn - matching aggregate 12.5.48.0/21 4637 3491 701 12163
  12.5.49.0/24         4637 3491 701 12163  - Withdrawn - matching aggregate 12.5.48.0/21 4637 3491 701 12163
  12.5.50.0/23         4637 3491 701 12163  - Withdrawn - matching aggregate 12.5.48.0/21 4637 3491 701 12163
  12.5.52.0/24         4637 3491 701 12163  - Withdrawn - matching aggregate 12.5.48.0/21 4637 3491 701 12163
  12.5.54.0/23         4637 3491 701 12163  - Withdrawn - matching aggregate 12.5.48.0/21 4637 3491 701 12163
  12.5.56.0/23         4637 3491 701 12163  - Withdrawn - aggregated with 12.5.58.0/23 (4637 3491 701 12163)
  12.5.58.0/24         4637 3491 701 12163  - Withdrawn - aggregated with 12.5.59.0/24 (4637 3491 701 12163)
  12.5.59.0/24         4637 3491 701 12163  - Withdrawn - aggregated with 12.5.58.0/24 (4637 3491 701 12163)
  12.5.60.0/22         4637 3491 701 12163  - Withdrawn - aggregated with 12.5.56.0/22 (4637 3491 701 12163)
  12.29.162.0/24       4637 3491 3561 7018 12163 12163   
  12.167.225.0/24      4637 3491 701 12163    
  12.183.64.0/24       4637 3491 701 12163    
  63.88.20.0/23        4637 3491 701 12163    
  63.88.20.0/24        4637 3491 701 12163  - Withdrawn - matching aggregate 63.88.20.0/23 4637 3491 701 12163
  63.88.21.0/24        4637 3491 701 12163  - Withdrawn - matching aggregate 63.88.20.0/23 4637 3491 701 12163

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

AS12163   20 More Specifics   20 Total Advertisements   BNSI - Broadband Network Services, Inc.
    12.4.193.0/24                 12.0.0.0/8
    12.4.194.0/24                 12.0.0.0/8
    12.4.196.0/22                 12.0.0.0/8
    12.4.199.0/24                 12.0.0.0/8
    12.5.48.0/21                  12.0.0.0/8
    12.5.48.0/24                  12.0.0.0/8
    12.5.49.0/24                  12.0.0.0/8
    12.5.50.0/23                  12.0.0.0/8
    12.5.52.0/24                  12.0.0.0/8
    12.5.54.0/23                  12.0.0.0/8
    12.5.56.0/23                  12.0.0.0/8
    12.5.58.0/24                  12.0.0.0/8
    12.5.59.0/24                  12.0.0.0/8
    12.5.60.0/22                  12.0.0.0/8
    12.29.162.0/24                12.0.0.0/8
    12.167.225.0/24               12.0.0.0/8
    12.183.64.0/24                12.0.0.0/8
    63.88.20.0/23                 63.64.0.0/10
    63.88.20.0/24                 63.64.0.0/10
    63.88.21.0/24                 63.64.0.0/10

Whois Entry

whois: 402603

IANA has recorded AS12163 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS12163\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:       12163
             ASName:         AMHERST-HOLDINGS
             ASHandle:       AS12163
             RegDate:        2013-09-18
             Updated:        2013-09-18
             Ref:            https://rdap.arin.net/registry/autnum/12163
             
             
             OrgName:        Amherst Holdings LLC
             OrgId:          AHL-155
             Address:        5001 Plaza on the Lake
             Address:        Suite 200
             City:           Austin
             StateProv:      TX
             PostalCode:     78746
             Country:        US
             RegDate:        2013-09-09
             Updated:        2018-09-05
             Ref:            https://rdap.arin.net/registry/entity/AHL-155
             
             
             OrgAbuseHandle: MESHI1-ARIN
             OrgAbuseName:   Meshier, Brent 
             OrgAbusePhone:  +1-512-342-3010 
             OrgAbuseEmail:  bmeshier@amherst.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/MESHI1-ARIN
             
             OrgTechHandle: IRVIN69-ARIN
             OrgTechName:   Irvin, Keith 
             OrgTechPhone:  +1-512-342-3073 
             OrgTechEmail:  kirvin@amherst.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/IRVIN69-ARIN
             
             OrgTechHandle: MESHI1-ARIN
             OrgTechName:   Meshier, Brent 
             OrgTechPhone:  +1-512-342-3010 
             OrgTechEmail:  bmeshier@amherst.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/MESHI1-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.
             #