Report for 20311

Name

VALERO - Valero Corporate Services, 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.

20311 VALERO, US

  Adjacency:     3  Upstream:     3  Downstream:     0
  Upstream Adjacent AS list
    AS701           UUNET, US
    AS3356          LEVEL3, US
    AS19905         SECURITYSERVICES, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
1087  AS20311        ORIGIN  Originate:     258048 /14.02  Transit:          0 /0.00  VALERO, 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       %
 2213 AS20311       VALERO, US                                        33     30      4      7     26  78.79%


  Prefix               AS Path                              Aggregation Suggestion
  149.58.0.0/16        3303 3356 20311        
  149.58.0.0/18        3257 19905 20311     + Announce - aggregate of 149.58.0.0/19 (3257 19905 20311) and 149.58.32.0/19 (3257 19905 20311)
  149.58.0.0/20        3257 19905 20311     - Withdrawn - aggregated with 149.58.16.0/20 (3257 19905 20311)
  149.58.16.0/20       3257 19905 20311     - Withdrawn - aggregated with 149.58.0.0/20 (3257 19905 20311)
  149.58.32.0/20       3257 19905 20311     - Withdrawn - aggregated with 149.58.48.0/20 (3257 19905 20311)
  149.58.48.0/20       3257 19905 20311     - Withdrawn - aggregated with 149.58.32.0/20 (3257 19905 20311)
  149.58.64.0/19       3257 19905 20311     + Announce - aggregate of 149.58.64.0/20 (3257 19905 20311) and 149.58.80.0/20 (3257 19905 20311)
  149.58.64.0/20       3257 19905 20311     - Withdrawn - aggregated with 149.58.80.0/20 (3257 19905 20311)
  149.58.80.0/20       3257 19905 20311     - Withdrawn - aggregated with 149.58.64.0/20 (3257 19905 20311)
  149.58.112.0/20      3257 19905 20311       
  149.58.128.0/17      3257 19905 20311     + Announce - aggregate of 149.58.128.0/18 (3257 19905 20311) and 149.58.192.0/18 (3257 19905 20311)
  149.58.128.0/20      3257 19905 20311     - Withdrawn - aggregated with 149.58.144.0/20 (3257 19905 20311)
  149.58.144.0/20      3257 19905 20311     - Withdrawn - aggregated with 149.58.128.0/20 (3257 19905 20311)
  149.58.160.0/20      3257 19905 20311     - Withdrawn - aggregated with 149.58.176.0/20 (3257 19905 20311)
  149.58.176.0/20      3257 19905 20311     - Withdrawn - aggregated with 149.58.160.0/20 (3257 19905 20311)
  149.58.192.0/20      3257 19905 20311     - Withdrawn - aggregated with 149.58.208.0/20 (3257 19905 20311)
  149.58.208.0/20      3257 19905 20311     - Withdrawn - aggregated with 149.58.192.0/20 (3257 19905 20311)
  149.58.224.0/20      3257 19905 20311     - Withdrawn - aggregated with 149.58.240.0/20 (3257 19905 20311)
  149.58.240.0/20      3257 19905 20311     - Withdrawn - aggregated with 149.58.224.0/20 (3257 19905 20311)
  170.111.0.0/16       3303 3356 20311        
  170.111.0.0/16       3257 19905 20311     + Announce - aggregate of 170.111.0.0/17 (3257 19905 20311) and 170.111.128.0/17 (3257 19905 20311)
  170.111.0.0/20       3257 19905 20311     - Withdrawn - aggregated with 170.111.16.0/20 (3257 19905 20311)
  170.111.16.0/20      3257 19905 20311     - Withdrawn - aggregated with 170.111.0.0/20 (3257 19905 20311)
  170.111.32.0/20      3257 19905 20311     - Withdrawn - aggregated with 170.111.48.0/20 (3257 19905 20311)
  170.111.48.0/20      3257 19905 20311     - Withdrawn - aggregated with 170.111.32.0/20 (3257 19905 20311)
  170.111.64.0/20      3257 19905 20311     - Withdrawn - aggregated with 170.111.80.0/20 (3257 19905 20311)
  170.111.80.0/20      3257 19905 20311     - Withdrawn - aggregated with 170.111.64.0/20 (3257 19905 20311)
  170.111.96.0/20      3257 19905 20311     - Withdrawn - aggregated with 170.111.112.0/20 (3257 19905 20311)
  170.111.112.0/20     3257 19905 20311     - Withdrawn - aggregated with 170.111.96.0/20 (3257 19905 20311)
  170.111.128.0/20     3257 19905 20311     - Withdrawn - aggregated with 170.111.144.0/20 (3257 19905 20311)
  170.111.144.0/20     3257 19905 20311     - Withdrawn - aggregated with 170.111.128.0/20 (3257 19905 20311)
  170.111.160.0/20     3257 19905 20311     - Withdrawn - aggregated with 170.111.176.0/20 (3257 19905 20311)
  170.111.176.0/20     3257 19905 20311     - Withdrawn - aggregated with 170.111.160.0/20 (3257 19905 20311)
  170.111.192.0/20     3257 19905 20311     - Withdrawn - aggregated with 170.111.208.0/20 (3257 19905 20311)
  170.111.208.0/20     3257 19905 20311     - Withdrawn - aggregated with 170.111.192.0/20 (3257 19905 20311)
  170.111.224.0/20     3257 19905 20311     - Withdrawn - aggregated with 170.111.240.0/20 (3257 19905 20311)
  170.111.240.0/20     3257 19905 20311     - Withdrawn - aggregated with 170.111.224.0/20 (3257 19905 20311)

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

AS20311   16 More Specifics   17 Total Advertisements   VALERO, US
    170.111.0.0/20                170.111.0.0/16
    170.111.16.0/20               170.111.0.0/16
    170.111.32.0/20               170.111.0.0/16
    170.111.48.0/20               170.111.0.0/16
    170.111.64.0/20               170.111.0.0/16
    170.111.80.0/20               170.111.0.0/16
    170.111.96.0/20               170.111.0.0/16
    170.111.112.0/20              170.111.0.0/16
    170.111.128.0/20              170.111.0.0/16
    170.111.144.0/20              170.111.0.0/16
    170.111.160.0/20              170.111.0.0/16
    170.111.176.0/20              170.111.0.0/16
    170.111.192.0/20              170.111.0.0/16
    170.111.208.0/20              170.111.0.0/16
    170.111.224.0/20              170.111.0.0/16
    170.111.240.0/20              170.111.0.0/16

Whois Entry

whois: 402603

IANA has recorded AS20311 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS20311\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:       20311
             ASName:         VALERO
             ASHandle:       AS20311
             RegDate:        2001-04-20
             Updated:        2012-11-08
             Ref:            https://rdap.arin.net/registry/autnum/20311
             
             
             OrgName:        Valero Corporate Services
             OrgId:          VCS-48
             Address:        One Valero Way
             City:           San Antonio
             StateProv:      TX
             PostalCode:     78249
             Country:        US
             RegDate:        2001-04-20
             Updated:        2012-11-08
             Ref:            https://rdap.arin.net/registry/entity/VCS-48
             
             
             OrgTechHandle: FENNE2-ARIN
             OrgTechName:   Fenner, Jeremy 
             OrgTechPhone:  +1-210-345-4750 
             OrgTechEmail:  jeremy.fenner@valero.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/FENNE2-ARIN
             
             OrgAbuseHandle: ARINC36-ARIN
             OrgAbuseName:   arin-contact
             OrgAbusePhone:  +1-210-345-2000 
             OrgAbuseEmail:  arin-contact@valero.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/ARINC36-ARIN
             
             OrgNOCHandle: ARINC36-ARIN
             OrgNOCName:   arin-contact
             OrgNOCPhone:  +1-210-345-2000 
             OrgNOCEmail:  arin-contact@valero.com
             OrgNOCRef:    https://rdap.arin.net/registry/entity/ARINC36-ARIN
             
             RAbuseHandle: ARINC36-ARIN
             RAbuseName:   arin-contact
             RAbusePhone:  +1-210-345-2000 
             RAbuseEmail:  arin-contact@valero.com
             RAbuseRef:    https://rdap.arin.net/registry/entity/ARINC36-ARIN
             
             RTechHandle: FENNE2-ARIN
             RTechName:   Fenner, Jeremy 
             RTechPhone:  +1-210-345-4750 
             RTechEmail:  jeremy.fenner@valero.com
             RTechRef:    https://rdap.arin.net/registry/entity/FENNE2-ARIN
             
             RNOCHandle: ARINC36-ARIN
             RNOCName:   arin-contact
             RNOCPhone:  +1-210-345-2000 
             RNOCEmail:  arin-contact@valero.com
             RNOCRef:    https://rdap.arin.net/registry/entity/ARINC36-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.
             #