Report for 54153

Name

LACMTA-ASN - Los Angeles County Metropolitan Transportation Authority, 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.

54153 LACMTA-ASN - Los Angeles County Metropolitan Transportation Authority, US

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS7018          ATT-INTERNET4 - AT&T Enterprises, LLC, US
    AS20001         TWC-20001-PACWEST - Charter Communications Inc, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
45390 AS54153        ORIGIN  Originate:        768 /22.42  Transit:          0 /0.00  LACMTA-ASN - Los Angeles County Metropolitan Transportation Authority, 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       %
23442 AS54153       LACMTA-ASN - Los Angeles County Metropolitan       3      2      1      2      1  33.33%


  Prefix               AS Path                              Aggregation Suggestion
  206.202.178.0/23     4777 2497 7018 54153 + Announce - aggregate of 206.202.178.0/24 (4777 2497 7018 54153) and 206.202.179.0/24 (4777 2497 7018 54153)
  206.202.178.0/24     4777 2497 7018 54153 - Withdrawn - aggregated with 206.202.179.0/24 (4777 2497 7018 54153)
  206.202.179.0/24     4777 2497 7018 54153 - Withdrawn - aggregated with 206.202.178.0/24 (4777 2497 7018 54153)
  206.202.182.0/24     4777 2516 7843 20001 54153   

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

AS54153   3 More Specifics   3 Total Advertisements   LACMTA-ASN - Los Angeles County Metropolitan Transportation Authority, US
    206.202.178.0/24              206.202.128.0/18
    206.202.179.0/24              206.202.128.0/18
    206.202.182.0/24              206.202.128.0/18

Whois Entry

whois: 402591

IANA has recorded AS54153 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS54153\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:       54153
             ASName:         LACMTA-ASN
             ASHandle:       AS54153
             RegDate:        2020-09-11
             Updated:        2020-09-11
             Ref:            https://rdap.arin.net/registry/autnum/54153
             
             
             OrgName:        Los Angeles County Metropolitan Transportation Authority
             OrgId:          LACMTA
             Address:        One Gateway Plaza
             City:           Los Angeles
             StateProv:      CA
             PostalCode:     90012
             Country:        US
             RegDate:        1995-07-18
             Updated:        2020-08-25
             Ref:            https://rdap.arin.net/registry/entity/LACMTA
             
             
             OrgAbuseHandle: NA9-ORG-ARIN
             OrgAbuseName:   Network Administrator, MTA
             OrgAbusePhone:  +1-213-922-4754 
             OrgAbuseEmail:  NETADMIN@mta.net
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/NA9-ORG-ARIN
             
             OrgTechHandle: NA9-ORG-ARIN
             OrgTechName:   Network Administrator, MTA
             OrgTechPhone:  +1-213-922-4754 
             OrgTechEmail:  NETADMIN@mta.net
             OrgTechRef:    https://rdap.arin.net/registry/entity/NA9-ORG-ARIN
             
             OrgTechHandle: ITSNE1-ARIN
             OrgTechName:   ITS-NETWORK-ADMIN
             OrgTechPhone:  +1-213-922-3421 
             OrgTechEmail:  itsnetadmin@metro.net
             OrgTechRef:    https://rdap.arin.net/registry/entity/ITSNE1-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.
             #