Report for 397635

Name

PATHLINE-CAMPUS - Synopsys 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 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.

397635 PATHLINE-CAMPUS - Synopsys Inc., US

  Adjacency:     4  Upstream:     4  Downstream:     0
  Upstream Adjacent AS list
    AS6461          ZAYO-6461 - Zayo Bandwidth, US
    AS7018          ATT-INTERNET4 - AT&T Enterprises, LLC, US
    AS29909         METROOPTIC - Metro Optic, CA
    AS3356          LEVEL3 - Level 3 Parent, LLC, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
13174 AS397635       ORIGIN  Originate:       6912 /19.25  Transit:          0 /0.00  PATHLINE-CAMPUS - Synopsys Inc., 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       %
12011 AS397635      PATHLINE-CAMPUS - Synopsys Inc., US               16      5      1     12      4  25.00%


  Prefix               AS Path                              Aggregation Suggestion
  149.117.1.0/24       4777 2497 3356 397635   
  149.117.4.0/24       4777 2516 3356 397635   
  149.117.7.0/24       4777 2516 3356 397635   
  149.117.72.0/21      4777 2497 3356 397635   
  149.117.73.0/24      4777 2497 3356 397635 - Withdrawn - matching aggregate 149.117.72.0/21 4777 2497 3356 397635
  149.117.74.0/24      4777 2497 3356 397635 - Withdrawn - matching aggregate 149.117.72.0/21 4777 2497 3356 397635
  149.117.75.0/24      4777 2497 3356 397635 - Withdrawn - matching aggregate 149.117.72.0/21 4777 2497 3356 397635
  149.117.76.0/24      4777 2497 7018 397635   
  149.117.79.0/24      4777 2497 7018 397635   
  149.117.87.0/24      4777 2497 3356 397635   
  149.117.92.0/23      4777 2516 3257 29909 397635   
  149.117.92.0/23      4777 2516 3356 397635 397635 397635 397635 397635 + Announce - aggregate of 149.117.92.0/24 (4777 2516 3356 397635 397635 397635 397635 397635) and 149.117.93.0/24 (4777 2516 3356 397635 397635 397635 397635 397635)
  149.117.92.0/24      4777 2516 3356 397635 397635 397635 397635 397635 - Withdrawn - aggregated with 149.117.93.0/24 (4777 2516 3356 397635 397635 397635 397635 397635)
  149.117.93.0/24      4777 2516 3356 397635 397635 397635 397635 397635 - Withdrawn - aggregated with 149.117.92.0/24 (4777 2516 3356 397635 397635 397635 397635 397635)
  149.117.96.0/22      4777 2497 3356 397635   
  149.117.96.0/24      4777 2497 6461 397635   
  149.117.98.0/24      4777 2516 3356 397635   

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

AS397635   16 More Specifics   16 Total Advertisements   PATHLINE-CAMPUS - Synopsys Inc., US
    149.117.1.0/24                149.117.0.0/16
    149.117.4.0/24                149.117.0.0/16
    149.117.7.0/24                149.117.0.0/16
    149.117.72.0/21               149.117.0.0/16
    149.117.73.0/24               149.117.0.0/16
    149.117.74.0/24               149.117.0.0/16
    149.117.75.0/24               149.117.0.0/16
    149.117.76.0/24               149.117.0.0/16
    149.117.79.0/24               149.117.0.0/16
    149.117.87.0/24               149.117.0.0/16
    149.117.92.0/23               149.117.0.0/16
    149.117.92.0/24               149.117.0.0/16
    149.117.93.0/24               149.117.0.0/16
    149.117.96.0/22               149.117.0.0/16
    149.117.96.0/24               149.117.0.0/16
    149.117.98.0/24               149.117.0.0/16

Whois Entry

whois: 402332

IANA has recorded AS397635 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS397635\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:       397635
             ASName:         PATHLINE-CAMPUS
             ASHandle:       AS397635
             RegDate:        2019-06-11
             Updated:        2019-06-11
             Ref:            https://rdap.arin.net/registry/autnum/397635
             
             
             OrgName:        Synopsys Inc.
             OrgId:          SYNOPS
             Address:        675 Almanor Ave
             City:           Sunnyvale
             StateProv:      CA
             PostalCode:     94085
             Country:        US
             RegDate:        1991-02-28
             Updated:        2025-10-22
             Ref:            https://rdap.arin.net/registry/entity/SYNOPS
             
             
             OrgTechHandle: NETWO2400-ARIN
             OrgTechName:   NETWORK-TEAM
             OrgTechPhone:  +1-650-584-4260 
             OrgTechEmail:  network-core@synopsys.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/NETWO2400-ARIN
             
             OrgAbuseHandle: NETWO2400-ARIN
             OrgAbuseName:   NETWORK-TEAM
             OrgAbusePhone:  +1-650-584-4260 
             OrgAbuseEmail:  network-core@synopsys.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/NETWO2400-ARIN
             
             OrgRoutingHandle: CHAND323-ARIN
             OrgRoutingName:   Chandrashekara, Rajashekara 
             OrgRoutingPhone:  +09742855547 
             OrgRoutingEmail:  rac@synopsys.com
             OrgRoutingRef:    https://rdap.arin.net/registry/entity/CHAND323-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.
             #