Report for 398808

Name

ACS-PUBLIC-01 - Arch Capital Services 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 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.

398808 ACS-PUBLIC-01 - Arch Capital Services LLC, US

  Adjacency:     5  Upstream:     5  Downstream:     0
  Upstream Adjacent AS list
    AS4637          ASN-TELSTRA-GLOBAL - Telstra Global, HK
    AS46887         CROWNCASTLE-AS46887 - Crown Castle Fiber LLC, US
    AS174           COGENT-174 - Cogent Communications, LLC, US
    AS3257          GTT-BACKBONE - GTT Communications Inc., US
    AS3356          LEVEL3 - Level 3 Parent, LLC, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
13281 AS398808       ORIGIN  Originate:       6656 /19.30  Transit:          0 /0.00  ACS-PUBLIC-01 - Arch Capital Services LLC, 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       %
15446 AS398808      ACS-PUBLIC-01 - Arch Capital Services LLC, US     25      6      3     22      3  12.00%


  Prefix               AS Path                              Aggregation Suggestion
  8.45.114.0/24        4777 2516 3356 398808   
  8.245.30.0/24        4777 2516 3356 398808   
  12.145.65.0/24       4777 2516 3356 398808   
  38.108.191.0/24      4777 2516 174 398808   
  91.196.5.0/24        4608 7575 3356 398808   
  149.5.34.0/24        4777 2516 174 398808   
  154.59.105.0/24      4777 2516 174 398808   
  192.81.191.0/24      4777 2516 3356 398808   
  199.254.65.0/24      4777 2516 3356 398808   
  199.254.66.0/23      4777 2516 3356 398808 + Announce - aggregate of 199.254.66.0/24 (4777 2516 3356 398808) and 199.254.67.0/24 (4777 2516 3356 398808)
  199.254.66.0/24      4777 2516 3356 398808 - Withdrawn - aggregated with 199.254.67.0/24 (4777 2516 3356 398808)
  199.254.67.0/24      4777 2516 3356 398808 - Withdrawn - aggregated with 199.254.66.0/24 (4777 2516 3356 398808)
  199.254.68.0/24      4777 2516 3257 398808   
  199.254.72.0/24      4608 7575 3356 398808   
  199.254.73.0/24      4777 2516 3356 398808   
  199.254.74.0/23      4777 2516 3356 398808   
  199.254.76.0/23      4608 7575 3356 398808 + Announce - aggregate of 199.254.76.0/24 (4608 7575 3356 398808) and 199.254.77.0/24 (4608 7575 3356 398808)
  199.254.76.0/24      4608 7575 3356 398808 - Withdrawn - aggregated with 199.254.77.0/24 (4608 7575 3356 398808)
  199.254.77.0/24      4608 7575 3356 398808 - Withdrawn - aggregated with 199.254.76.0/24 (4608 7575 3356 398808)
  199.254.78.0/24      4777 2516 3356 398808   
  199.254.79.0/24      4777 2516 3257 398808   
  199.254.80.0/24      4777 2516 3356 398808   
  199.254.87.0/24      4777 2516 3356 398808   
  199.254.92.0/23      4777 2516 3356 398808 + Announce - aggregate of 199.254.92.0/24 (4777 2516 3356 398808) and 199.254.93.0/24 (4777 2516 3356 398808)
  199.254.92.0/24      4777 2516 3356 398808 - Withdrawn - aggregated with 199.254.93.0/24 (4777 2516 3356 398808)
  199.254.93.0/24      4777 2516 3356 398808 - Withdrawn - aggregated with 199.254.92.0/24 (4777 2516 3356 398808)
  199.254.94.0/24      4777 2516 3356 398808   
  205.166.172.0/24     4777 2516 3356 398808   

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

AS398808   22 More Specifics   25 Total Advertisements   ACS-PUBLIC-01 - Arch Capital Services LLC, US
    8.45.114.0/24                 8.32.0.0/11
    8.245.30.0/24                 8.244.0.0/14
    12.145.65.0/24                12.0.0.0/8
    38.108.191.0/24               38.0.0.0/8
    149.5.34.0/24                 149.5.0.0/16
    154.59.105.0/24               154.59.0.0/16
    199.254.65.0/24               199.254.64.0/21
    199.254.66.0/24               199.254.64.0/21
    199.254.67.0/24               199.254.64.0/21
    199.254.68.0/24               199.254.64.0/21
    199.254.72.0/24               199.254.72.0/21
    199.254.73.0/24               199.254.72.0/21
    199.254.74.0/23               199.254.72.0/21
    199.254.76.0/24               199.254.72.0/21
    199.254.77.0/24               199.254.72.0/21
    199.254.78.0/24               199.254.72.0/21
    199.254.79.0/24               199.254.72.0/21
    199.254.80.0/24               199.254.80.0/20
    199.254.87.0/24               199.254.80.0/20
    199.254.92.0/24               199.254.80.0/20
    199.254.93.0/24               199.254.80.0/20
    199.254.94.0/24               199.254.80.0/20

Whois Entry

whois: 402609

IANA has recorded AS398808 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS398808\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:       398808
             ASName:         ACS-PUBLIC-01
             ASHandle:       AS398808
             RegDate:        2020-09-03
             Updated:        2020-09-03
             Ref:            https://rdap.arin.net/registry/autnum/398808
             
             
             OrgName:        Arch Capital Services LLC
             OrgId:          ACS-1141
             Address:        360 Hamilton Ave, Suite 600
             City:           White Plains
             StateProv:      NY
             PostalCode:     10601
             Country:        US
             RegDate:        2020-08-28
             Updated:        2024-08-22
             Ref:            https://rdap.arin.net/registry/entity/ACS-1141
             
             
             OrgTechHandle: AEA21-ARIN
             OrgTechName:   Arch Enterprise Architecture  
             OrgTechPhone:  +1-201-743-4000 
             OrgTechEmail:  AMIS-EnterpriseArchitecture@archcapservices.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/AEA21-ARIN
             
             OrgAbuseHandle: AEA21-ARIN
             OrgAbuseName:   Arch Enterprise Architecture  
             OrgAbusePhone:  +1-201-743-4000 
             OrgAbuseEmail:  AMIS-EnterpriseArchitecture@archcapservices.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/AEA21-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.
             #