
21101 SISTEMIUNO-AS - Sistemi Hardware&Software S.P.A., IT
Adjacency: 2 Upstream: 1 Downstream: 1
Upstream Adjacent AS list
AS41327 FIBERTELECOM-AS - Fiber Telecom S.p.A., IT
Downstream Adjacent AS list
AS13060 ASN-BASICNET - Basic Net SpA, IT
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 14907 AS21101 ORG+TRN Originate: 5120 /19.68 Transit: 256 /24.00 SISTEMIUNO-AS - Sistemi Hardware&Software S.P.A., IT
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 % 3966 AS21101 SISTEMIUNO-AS - Sistemi Hardware&Software S.P 20 18 5 7 13 65.00% Prefix AS Path Aggregation Suggestion 91.240.230.0/23 4608 7575 2914 41327 21101 + Announce - aggregate of 91.240.230.0/24 (4608 7575 2914 41327 21101) and 91.240.231.0/24 (4608 7575 2914 41327 21101) 91.240.230.0/24 4608 7575 2914 41327 21101 - Withdrawn - aggregated with 91.240.231.0/24 (4608 7575 2914 41327 21101) 91.240.231.0/24 4608 7575 2914 41327 21101 - Withdrawn - aggregated with 91.240.230.0/24 (4608 7575 2914 41327 21101) 94.143.96.0/23 4608 7575 2914 41327 21101 + Announce - aggregate of 94.143.96.0/24 (4608 7575 2914 41327 21101) and 94.143.97.0/24 (4608 7575 2914 41327 21101) 94.143.96.0/24 4608 7575 2914 41327 21101 - Withdrawn - aggregated with 94.143.97.0/24 (4608 7575 2914 41327 21101) 94.143.97.0/24 4608 7575 2914 41327 21101 - Withdrawn - aggregated with 94.143.96.0/24 (4608 7575 2914 41327 21101) 94.143.98.0/24 4608 7575 2914 41327 21101 94.143.100.0/22 4608 7575 2914 41327 21101 + Announce - aggregate of 94.143.100.0/23 (4608 7575 2914 41327 21101) and 94.143.102.0/23 (4608 7575 2914 41327 21101) 94.143.100.0/24 4608 7575 2914 41327 21101 - Withdrawn - aggregated with 94.143.101.0/24 (4608 7575 2914 41327 21101) 94.143.101.0/24 4608 7575 2914 41327 21101 - Withdrawn - aggregated with 94.143.100.0/24 (4608 7575 2914 41327 21101) 94.143.102.0/24 4608 7575 2914 41327 21101 - Withdrawn - aggregated with 94.143.103.0/24 (4608 7575 2914 41327 21101) 94.143.103.0/24 4608 7575 2914 41327 21101 - Withdrawn - aggregated with 94.143.102.0/24 (4608 7575 2914 41327 21101) 185.5.94.0/23 4608 7575 2914 41327 21101 + Announce - aggregate of 185.5.94.0/24 (4608 7575 2914 41327 21101) and 185.5.95.0/24 (4608 7575 2914 41327 21101) 185.5.94.0/24 4608 7575 2914 41327 21101 - Withdrawn - aggregated with 185.5.95.0/24 (4608 7575 2914 41327 21101) 185.5.95.0/24 4608 7575 2914 41327 21101 - Withdrawn - aggregated with 185.5.94.0/24 (4608 7575 2914 41327 21101) 193.109.32.0/21 4608 7575 2914 41327 21101 + Announce - aggregate of 193.109.32.0/22 (4608 7575 2914 41327 21101) and 193.109.36.0/22 (4608 7575 2914 41327 21101) 193.109.32.0/24 4608 7575 2914 41327 21101 - Withdrawn - aggregated with 193.109.33.0/24 (4608 7575 2914 41327 21101) 193.109.33.0/24 4608 7575 2914 41327 21101 - Withdrawn - aggregated with 193.109.32.0/24 (4608 7575 2914 41327 21101) 193.109.34.0/24 4608 7575 2914 41327 21101 - Withdrawn - aggregated with 193.109.35.0/24 (4608 7575 2914 41327 21101) 193.109.35.0/24 4608 7575 2914 41327 21101 - Withdrawn - aggregated with 193.109.34.0/24 (4608 7575 2914 41327 21101) 193.109.36.0/24 4608 7575 2914 41327 21101 - Withdrawn - aggregated with 193.109.37.0/24 (4608 7575 2914 41327 21101) 193.109.37.0/24 4608 7575 2914 41327 21101 - Withdrawn - aggregated with 193.109.36.0/24 (4608 7575 2914 41327 21101) 193.109.38.0/24 4608 7575 2914 41327 21101 - Withdrawn - aggregated with 193.109.39.0/24 (4608 7575 2914 41327 21101) 193.109.39.0/24 4608 7575 2914 41327 21101 - Withdrawn - aggregated with 193.109.38.0/24 (4608 7575 2914 41327 21101) 193.150.112.0/24 4608 7575 2914 41327 21101
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS21101 19 More Specifics 20 Total Advertisements SISTEMIUNO-AS - Sistemi Hardware&Software S.P.A., IT
91.240.230.0/24 91.240.230.0/23
91.240.231.0/24 91.240.230.0/23
94.143.96.0/24 94.143.96.0/21
94.143.97.0/24 94.143.96.0/21
94.143.98.0/24 94.143.96.0/21
94.143.100.0/24 94.143.96.0/21
94.143.101.0/24 94.143.96.0/21
94.143.102.0/24 94.143.96.0/21
94.143.103.0/24 94.143.96.0/21
185.5.94.0/24 185.5.92.0/22
185.5.95.0/24 185.5.92.0/22
193.109.32.0/24 193.109.32.0/21
193.109.33.0/24 193.109.32.0/21
193.109.34.0/24 193.109.32.0/21
193.109.35.0/24 193.109.32.0/21
193.109.36.0/24 193.109.32.0/21
193.109.37.0/24 193.109.32.0/21
193.109.38.0/24 193.109.32.0/21
193.109.39.0/24 193.109.32.0/21
whois: 402609
IANA has recorded AS21101 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS21101\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 'AS21004 - AS21151'
as-block: AS21004 - AS21151
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: 2018-11-22T15:27:27Z
last-modified: 2018-11-22T15:27:27Z
source: RIPE
% Information related to 'AS21101'
% Abuse contact for 'AS21101' is 'abuse@unonet.it'
aut-num: AS21101
as-name: SISTEMIUNO-AS
descr: ASP - Application Service Provider
descr: Turin - IT
org: ORG-SUS6-RIPE
import: from AS49367 accept ANY
export: to AS49367 announce AS-SISTEMIUNO
import: from AS41327 accept ANY
export: to AS41327 announce AS-SISTEMIUNO
import: from AS12779 accept ANY
export: to AS12779 announce AS-SISTEMIUNO
import: from AS44091 accept AS44091
export: to AS44091 announce ANY
import: from AS13060 accept AS13060
export: to AS13060 announce ANY
admin-c: GPC3-RIPE
tech-c: GL4309-RIPE
status: ASSIGNED
mnt-by: RIPE-NCC-END-MNT
mnt-by: MNT-SISTEMIUNO
created: 2002-03-26T22:30:05Z
last-modified: 2025-03-05T09:23:58Z
source: RIPE
organisation: ORG-SUS6-RIPE
org-name: Sistemi Hardware&Software S.P.A.
country: IT
reg-nr: 07393280016
org-type: LIR
address: Via Torino n.176
address: 10093
address: Collegno (TO)
address: ITALY
phone: +39114049111
fax-no: +39114049222
abuse-c: UAH9-RIPE
admin-c: GPC3-RIPE
tech-c: GL4309-RIPE
mnt-ref: RIPE-NCC-HM-MNT
mnt-ref: MNT-SISTEMIUNO
mnt-by: RIPE-NCC-HM-MNT
mnt-by: MNT-SISTEMIUNO
created: 2008-11-18T09:24:02Z
last-modified: 2026-05-13T07:32:31Z
source: RIPE # Filtered
%ERROR:201: access denied for 2401:2000:6660:0:0:0:0:13
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% Access from your host has been temporarily denied.
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% This query was served by the RIPE Database Query Service version 1.122.1 (BUSA)