31420 TERASYST-AS Autonomous system of Terasyst Ltd
Adjacency: 2 Upstream: 2 Downstream: 0
Upstream Adjacent AS list
AS34224 NETERRA-AS Neterra Ltd.
AS8262 LIREXNET-AS LIREX NET Ltd
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 8141 AS31420 ORIGIN Originate: 6912 /19.25 Transit: 0 /0.00 TERASYST-AS Autonomous system of Terasyst Ltd
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 % 3339 AS31420 TERASYST-AS Autonomous system of Terasys 14 4 1 11 3 21.43% Prefix AS Path Aggregation Suggestion 89.252.192.0/21 4637 174 34224 31420 89.252.192.0/24 4637 3320 34224 31420 89.252.193.0/24 4637 3549 8400 8262 31420 89.252.194.0/23 4637 3356 34224 31420 + Announce - aggregate of 89.252.194.0/24 (4637 3356 34224 31420) and 89.252.195.0/24 (4637 3356 34224 31420) 89.252.194.0/24 4637 3356 34224 31420 - Withdrawn - aggregated with 89.252.195.0/24 (4637 3356 34224 31420) 89.252.195.0/24 4637 3356 34224 31420 - Withdrawn - aggregated with 89.252.194.0/24 (4637 3356 34224 31420) 89.252.196.0/24 4637 3549 8400 8262 31420 89.252.197.0/24 4637 3320 34224 31420 89.252.200.0/22 4637 3549 8400 8262 31420 89.252.200.0/24 4637 3549 8400 8262 31420 - Withdrawn - matching aggregate 89.252.200.0/22 4637 3549 8400 8262 31420 89.252.201.0/24 4637 3549 8400 8262 31420 - Withdrawn - matching aggregate 89.252.200.0/22 4637 3549 8400 8262 31420 193.151.80.0/22 4637 3320 34224 31420 193.151.80.0/24 4637 3549 8400 8262 31420 193.151.81.0/24 4637 174 34224 31420 193.151.82.0/24 4637 3549 8400 8262 31420
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS31420 15 More Specifics 16 Total Advertisements TERASYST-AS Autonomous system of Terasyst Ltd
89.252.192.0/21 89.252.192.0/18
89.252.192.0/24 89.252.192.0/18
89.252.193.0/24 89.252.192.0/18
89.252.194.0/24 89.252.192.0/18
89.252.195.0/24 89.252.192.0/18
89.252.196.0/24 89.252.192.0/18
89.252.197.0/24 89.252.192.0/18
89.252.198.0/24 89.252.192.0/18
89.252.199.0/24 89.252.192.0/18
89.252.200.0/22 89.252.192.0/18
89.252.200.0/24 89.252.192.0/18
89.252.201.0/24 89.252.192.0/18
193.151.80.0/24 193.151.80.0/22
193.151.81.0/24 193.151.80.0/22
193.151.82.0/24 193.151.80.0/22
whois: 402603
IANA has recorded AS31420 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS31420\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 'AS31246 - AS31618'
as-block: AS31246 - AS31618
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: 2018-11-22T15:27:33Z
last-modified: 2018-11-22T15:27:33Z
source: RIPE
% Information related to 'AS31420'
% Abuse contact for 'AS31420' is 'abuse@rozabg.com'
aut-num: AS31420
as-name: TERASYST-AS
import: from AS8262 action pref=100; accept ANY
import: from AS34224 action pref=100; accept ANY
import: from AS8866 action pref=100; accept ANY
import: from AS8717 action pref=100; accept ANY
import: from AS57344 action pref=100; accept ANY
export: to AS8262 announce AS31420
export: to AS34224 announce AS31420
export: to AS8866 announce AS31420
export: to AS8717 announce AS31420
export: to AS57344 announce AS31420
org: ORG-TL18-RIPE
default: to AS8262
admin-c: DPG38-RIPE
tech-c: DPG38-RIPE
status: ASSIGNED
mnt-by: MNT-TERASYST
mnt-by: AS8262-MNT
mnt-by: RIPE-NCC-END-MNT
created: 2004-05-11T13:23:09Z
last-modified: 2023-07-06T09:45:13Z
source: RIPE # Filtered
sponsoring-org: ORG-NAL1-RIPE
organisation: ORG-TL18-RIPE
org-name: Terasyst Ltd
country: BG
reg-nr: 115165119
org-type: OTHER
descr: Terasyst Ltd - Karlovo, Bulgaria
address: 4300 Karlovo, Bulgaria
address: 20 Gladston str
abuse-c: AR20195-RIPE
admin-c: DPG38-RIPE
tech-c: DPG38-RIPE
mnt-ref: AS8262-MNT
mnt-ref: MNT-TERASYST
mnt-by: AS8262-MNT
created: 2004-05-03T09:01:42Z
last-modified: 2026-05-13T06:46:56Z
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 (SHETLAND)