Report for 48121

Name

CRSIIS-ISFAHANIDC, IR

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.

48121 CRSIIS-ISFAHANIDC, IR

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS58224         TCI, IR

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
63312 AS48121        ORIGIN  Originate:        256 /24.00  Transit:          0 /0.00  CRSIIS-ISFAHANIDC, IR

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       %
45354 AS48121       CRSIIS-ISFAHANIDC, IR                              1      0      0      1      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  91.222.199.0/24      4777 2516 6762 49666 58224 48121   

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

AS48121   1 More Specifics   1 Total Advertisements   CRSIIS-ISFAHANIDC, IR
    91.222.199.0/24               91.222.198.0/23

Whois Entry

whois: 402332

IANA has recorded AS48121 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS48121\n             % This is the RIPE Database query service.
             % The objects are in RPSL format.
             %
             % The RIPE Database is subject to Terms and Conditions.
             % See https://docs.db.ripe.net/terms-conditions.html
             
             % Note: this output has been filtered.
             
             % Information related to 'AS47870 - AS49384'
             
             as-block:       AS47870 - AS49384
             descr:          RIPE NCC ASN block
             remarks:        These AS Numbers are assigned to network operators in the RIPE NCC service region.
             mnt-by:         RIPE-NCC-HM-MNT
             created:        2025-07-09T08:51:07Z
             last-modified:  2025-07-09T08:51:07Z
             source:         RIPE
             
             % Information related to 'AS48121'
             
             % Abuse contact for 'AS48121' is 'abuse@skydsl.ir'
             
             aut-num:        AS48121
             as-name:        CRSIIS-ISFAHANIDC
             org:            ORG-Crco2-RIPE
             import:         from AS48309 action pref=100;accept ANY
             import:         from AS12880 accept any
             import:         from AS49697 accept any
             import:         from AS44375 accept any
             import:         from AS58224 accept any
             import:         from AS57474 accept any
             import:         from AS42163 accept any
             export:         to AS12880 announce AS48121
             export:         to AS48309 announce AS48121
             export:         to AS49697 announce AS48121
             export:         to AS58225 announce AS48121
             export:         to AS44375 announce AS48121
             export:         to AS57474 announce AS48121
             export:         to AS42163 announce AS48121
             default:        To AS12880
             admin-c:        HS800
             tech-c:         AA9453-RIPE
             status:         ASSIGNED
             mnt-by:         RIPE-NCC-END-MNT
             mnt-by:         MNT-MIHAN
             mnt-by:         MNT-CRSIIS
             created:        2011-01-12T09:20:12Z
             last-modified:  2023-02-28T12:49:31Z
             source:         RIPE # Filtered
             sponsoring-org: ORG-MCSC2-RIPE
             
             organisation:   ORG-CRCO2-RIPE
             org-name:       Computer research center of Islamic seminary of Isfahan
             country:        IR
             org-type:       OTHER
             address:        Ordibehesht St. , Ostad Motahari Ave. , Esfahan-Iran
             abuse-c:        AR28498-RIPE
             mnt-ref:        MNT-MIHAN
             mnt-by:         MNT-MIHAN
             mnt-by:         MNT-CRSIIS
             created:        2010-12-30T19:57:40Z
             last-modified:  2026-04-17T10:23:56Z
             source:         RIPE # Filtered
             
             %ERROR:201: access denied for 2401:2000:6660:0:0:0:0:13
             %
             % Queries from your IP address have passed the daily limit of controlled objects.
             % Access from your host has been temporarily denied.
             % For more information, see
             % https://docs.db.ripe.net/FAQ/#why-did-i-receive-an-error-201-access-denied
             
             % This query was served by the RIPE Database Query Service version 1.121.2 (DEXTER)