Report for 609

Name

EY-AS-L - Ernst & Young LLP, 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.

609 EY-AS-L - Ernst & Young LLP, US

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS13237         LAMBDANET-AS - euNetworks GmbH, DE
    AS3356          LEVEL3 - Level 3 Parent, LLC, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
15357 AS609          ORIGIN  Originate:       4864 /19.75  Transit:          0 /0.00  EY-AS-L - Ernst & Young LLP, 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       %
20428 AS609         EY-AS-L - Ernst & Young LLP, US                    4      2      1      3      1  25.00%


  Prefix               AS Path                              Aggregation Suggestion
  199.52.148.0/23      4777 2516 3356 609   + Announce - aggregate of 199.52.148.0/24 (4777 2516 3356 609) and 199.52.149.0/24 (4777 2516 3356 609)
  199.52.148.0/24      4777 2516 3356 609   - Withdrawn - aggregated with 199.52.149.0/24 (4777 2516 3356 609)
  199.52.149.0/24      4777 2516 3356 609   - Withdrawn - aggregated with 199.52.148.0/24 (4777 2516 3356 609)
  199.52.150.0/24      4777 2516 3356 609     
  199.52.240.0/20      4777 2516 3257 13237 609   

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

AS609   4 More Specifics   4 Total Advertisements   EY-AS-L - Ernst & Young LLP, US
    199.52.148.0/24               199.52.0.0/16
    199.52.149.0/24               199.52.0.0/16
    199.52.150.0/24               199.52.0.0/16
    199.52.240.0/20               199.52.0.0/16

Whois Entry

whois: 402603

IANA has recorded AS609 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS609\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:       609
             ASName:         EY-AS-L
             ASHandle:       AS609
             RegDate:        2009-07-22
             Updated:        2023-10-04
             Ref:            https://rdap.arin.net/registry/autnum/609
             
             
             OrgName:        Ernst & Young LLP
             OrgId:          EYL
             Address:        200 Plaza Drive
             City:           Secaucus
             StateProv:      NJ
             PostalCode:     07094
             Country:        US
             RegDate:        1996-01-31
             Updated:        2025-05-26
             Ref:            https://rdap.arin.net/registry/entity/EYL
             
             
             OrgTechHandle: IAM12-ARIN
             OrgTechName:   IP Address Management
             OrgTechPhone:  +1-201-872-2200 
             OrgTechEmail:  Internet@ey.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/IAM12-ARIN
             
             OrgNOCHandle: IAM12-ARIN
             OrgNOCName:   IP Address Management
             OrgNOCPhone:  +1-201-872-2200 
             OrgNOCEmail:  Internet@ey.com
             OrgNOCRef:    https://rdap.arin.net/registry/entity/IAM12-ARIN
             
             OrgRoutingHandle: IAM12-ARIN
             OrgRoutingName:   IP Address Management
             OrgRoutingPhone:  +1-201-872-2200 
             OrgRoutingEmail:  Internet@ey.com
             OrgRoutingRef:    https://rdap.arin.net/registry/entity/IAM12-ARIN
             
             OrgDNSHandle: IAM12-ARIN
             OrgDNSName:   IP Address Management
             OrgDNSPhone:  +1-201-872-2200 
             OrgDNSEmail:  Internet@ey.com
             OrgDNSRef:    https://rdap.arin.net/registry/entity/IAM12-ARIN
             
             OrgAbuseHandle: IAM12-ARIN
             OrgAbuseName:   IP Address Management
             OrgAbusePhone:  +1-201-872-2200 
             OrgAbuseEmail:  Internet@ey.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/IAM12-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.
             #