Report for 19581

Name

GRAYCENTRALCAST - Gray Media, 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 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.

19581 DALLAS-COUNTY - DALLAS COUNTY SCHOOLS

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS209     ASN-QWEST - Qwest
    AS16967   SBCIDC-DLLSTX - AT&T Internet Services

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
9060  AS19581  ORIGIN  Originate:       4608 /19.83  Transit:          0 /0.00  DALLAS-COUNTY - DALLAS COUNTY SCHOOLS

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       %
 2608 AS19581 DALLAS-COUNTY - DALLAS COUNTY SCHOOLS        17      8      4     13      4  23.53%


  Prefix               AS Path                              Aggregation Suggestion
  63.145.54.0/23       4637 209 19581       + Announce - aggregate of 63.145.54.0/24 (4637 209 19581) and 63.145.55.0/24 (4637 209 19581)
  63.145.54.0/24       4637 209 19581       - Withdrawn - aggregated with 63.145.55.0/24 (4637 209 19581)
  63.145.55.0/24       4637 209 19581       - Withdrawn - aggregated with 63.145.54.0/24 (4637 209 19581)
  63.149.167.0/24      4637 209 19581 19581   
  63.149.171.0/24      4637 209 19581         
  65.115.60.0/23       4637 209 19581 19581 + Announce - aggregate of 65.115.60.0/24 (4637 209 19581 19581) and 65.115.61.0/24 (4637 209 19581 19581)
  65.115.60.0/24       4637 209 19581 19581 - Withdrawn - aggregated with 65.115.61.0/24 (4637 209 19581 19581)
  65.115.61.0/24       4637 209 19581 19581 - Withdrawn - aggregated with 65.115.60.0/24 (4637 209 19581 19581)
  65.115.204.0/24      4637 209 19581 19581   
  65.117.144.0/23      4637 209 19581         
  65.117.146.0/24      4637 209 19581 19581   
  65.117.158.0/24      4637 7132 16967 19581   
  65.120.148.0/23      4637 209 19581 19581 + Announce - aggregate of 65.120.148.0/24 (4637 209 19581 19581) and 65.120.149.0/24 (4637 209 19581 19581)
  65.120.148.0/24      4637 209 19581 19581 - Withdrawn - aggregated with 65.120.149.0/24 (4637 209 19581 19581)
  65.120.149.0/24      4637 209 19581 19581 - Withdrawn - aggregated with 65.120.148.0/24 (4637 209 19581 19581)
  65.120.150.0/24      4637 209 19581 19581   
  65.125.92.0/24       4637 7132 16967 19581   
  67.130.190.0/23      4637 209 19581       + Announce - aggregate of 67.130.190.0/24 (4637 209 19581) and 67.130.191.0/24 (4637 209 19581)
  67.130.190.0/24      4637 209 19581       - Withdrawn - aggregated with 67.130.191.0/24 (4637 209 19581)
  67.130.191.0/24      4637 209 19581       - Withdrawn - aggregated with 67.130.190.0/24 (4637 209 19581)
  192.206.243.0/24     4637 209 19581         

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

AS19581   17 More Specifics   18 Total Advertisements   DALLAS-COUNTY - DALLAS COUNTY SCHOOLS
    63.145.54.0/24                63.144.0.0/13
    63.145.55.0/24                63.144.0.0/13
    63.149.167.0/24               63.144.0.0/13
    63.149.171.0/24               63.144.0.0/13
    65.115.60.0/24                65.112.0.0/12
    65.115.61.0/24                65.112.0.0/12
    65.115.204.0/24               65.112.0.0/12
    65.117.144.0/24               65.112.0.0/12
    65.117.145.0/24               65.112.0.0/12
    65.117.146.0/24               65.112.0.0/12
    65.117.158.0/24               65.112.0.0/12
    65.120.148.0/24               65.112.0.0/12
    65.120.149.0/24               65.112.0.0/12
    65.120.150.0/24               65.112.0.0/12
    65.125.92.0/24                65.112.0.0/12
    67.130.190.0/24               67.128.0.0/13
    67.130.191.0/24               67.128.0.0/13

Whois Entry

whois: 402603

IANA has recorded AS19581 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS19581\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:       19581
             ASName:         GRAYCENTRALCAST
             ASHandle:       AS19581
             RegDate:        2025-08-25
             Updated:        2025-08-25
             Ref:            https://rdap.arin.net/registry/autnum/19581
             
             
             OrgName:        Gray Media, Inc.
             OrgId:          GRAYT-3
             Address:        1801 HALSTEAD BLVD
             City:           TALLAHASSEE
             StateProv:      FL
             PostalCode:     32309
             Country:        US
             RegDate:        2007-11-01
             Updated:        2025-08-22
             Ref:            https://rdap.arin.net/registry/entity/GRAYT-3
             
             
             OrgTechHandle: CHADW36-ARIN
             OrgTechName:   Chadwick, Mike 
             OrgTechPhone:  +1-334-229-0307 
             OrgTechEmail:  mike.chadwick@gray.tv
             OrgTechRef:    https://rdap.arin.net/registry/entity/CHADW36-ARIN
             
             OrgAbuseHandle: CHADW36-ARIN
             OrgAbuseName:   Chadwick, Mike 
             OrgAbusePhone:  +1-334-229-0307 
             OrgAbuseEmail:  mike.chadwick@gray.tv
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/CHADW36-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.
             #