Report for 3557

Name

ISC-AS - Internet Systems Consortium, 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.

3557 ISC-AS - Internet Systems Consortium, Inc., US

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS13335         CLOUDFLARENET - Cloudflare, Inc., US
    AS1280          ISC-AS-1280 - Internet Systems Consortium, Inc., US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
44199 AS3557         ORIGIN  Originate:        768 /22.42  Transit:          0 /0.00  ISC-AS - Internet Systems Consortium, 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       %
31290 AS3557        ISC-AS - Internet Systems Consortium, Inc., U      2      0      0      2      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  192.5.4.0/23         4777 6939 1280 3557    
  192.5.5.0/24         4777 13335 3557        

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

AS3557   1 More Specifics   2 Total Advertisements   ISC-AS - Internet Systems Consortium, Inc., US
    192.5.5.0/24                  192.5.4.0/23

Whois Entry

whois: 402332

IANA has recorded AS3557 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS3557\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:       3557
             ASName:         ISC-AS
             ASHandle:       AS3557
             RegDate:        1994-04-21
             Updated:        2012-04-02
             Ref:            https://rdap.arin.net/registry/autnum/3557
             
             
             OrgName:        Internet Systems Consortium, Inc.
             OrgId:          ISC-94-Z
             Address:        PO Box 360
             City:           Newmarket
             StateProv:      NH
             PostalCode:     03857
             Country:        US
             RegDate:        2007-11-08
             Updated:        2024-01-03
             Ref:            https://rdap.arin.net/registry/entity/ISC-94-Z
             
             
             OrgTechHandle: BELLI82-ARIN
             OrgTechName:   Bellis, Ray 
             OrgTechPhone:  +1-650-423-1300 
             OrgTechEmail:  ray@isc.org
             OrgTechRef:    https://rdap.arin.net/registry/entity/BELLI82-ARIN
             
             OrgTechHandle: ISCN-ARIN
             OrgTechName:   Internet Systems Consortium NOC
             OrgTechPhone:  +1-650-423-1310 
             OrgTechEmail:  noc@isc.org
             OrgTechRef:    https://rdap.arin.net/registry/entity/ISCN-ARIN
             
             OrgNOCHandle: ISCN-ARIN
             OrgNOCName:   Internet Systems Consortium NOC
             OrgNOCPhone:  +1-650-423-1310 
             OrgNOCEmail:  noc@isc.org
             OrgNOCRef:    https://rdap.arin.net/registry/entity/ISCN-ARIN
             
             OrgTechHandle: JSO127-ARIN
             OrgTechName:   Osborn, Jeffrey Scott
             OrgTechPhone:  +1-408-455-8258 
             OrgTechEmail:  jeff@isc.org
             OrgTechRef:    https://rdap.arin.net/registry/entity/JSO127-ARIN
             
             OrgAbuseHandle: ISCAT-ARIN
             OrgAbuseName:   Internet Systems Consortium Abuse Team
             OrgAbusePhone:  +1-650-423-1300 
             OrgAbuseEmail:  abuse@isc.org
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/ISCAT-ARIN
             
             OrgTechHandle: RA15-ARIN
             OrgTechName:   Adams, Rick 
             OrgTechPhone:  +1-703-255-5527 
             OrgTechEmail:  rick@cello.net
             OrgTechRef:    https://rdap.arin.net/registry/entity/RA15-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.
             #