6855 SK-TELEKOM Slovak Telekom T-Mobile CZ, SK
Adjacency: 104 Upstream: 6 Downstream: 98
Upstream Adjacent AS list
AS6461 ZAYO-6461, US
AS33891 CORE-BACKBONE CORE-BACKBONE GMBH GLOBAL NETWORK, DE
AS44185 BONET UPSTREAM, SK
AS6939 HURRICANE, US
AS1299 TWELVE99 Arelion, fka Telia Carrier, SE
AS3320 DTAG Internet service provider operations, DE
Downstream Adjacent AS list
AS198101 KOOPERATIVA-AS Kooperativa pojistovna, a.s., Vienna Insurance Group, CZ
AS200828 THOSTING-AS, CZ
AS31349 A-NET, CZ
AS48417 ITS-, CZ
AS48451 PRE-AS, CZ
AS56973 VITSOL, CZ
AS57007 ASNITEX, CZ
AS48405 CGI-CZ-AS1, CZ
AS12344 CZECHITC, CZ
AS15380 ANSCZ is czech national air traffic control organisation, CZ
AS16158 COMVERSE-AS, IL
AS196762 ASALKOM, CZ
AS197083 K2ATMITEC, CZ
AS197694 MEPNET-AS, CZ
AS198143 CESKAPOSTA-AS, CZ
AS198103 CCS-, CZ
AS197642 ST-IDC2-AS, SK
AS199220 KRS-AS-, CZ
AS196861 DIGIACT-AS, CZ
AS201163 KB-AS-, CZ
AS201447 AS_CNB, CZ
AS200355 CADCANET, SK
AS201841 SK-PETITPRESS-ASN, SK
AS201997 SK-MCOM-AS, SK
AS201603 AIRNET-, SK
AS200222 SAMANET Sama Tech s.r.o., SK
AS10780 PURE-STORAGE, US
AS202830 AS_KBCGROUP_DCSK, BE
AS203080 SAP_SE_PRG, DE
AS202876 AS_BBNW, SK
AS204113 CSIS, CZ
AS204394 CORTEX, CZ
AS204716 PLAYMAX, SK
AS204690 OLIM, SK
AS204772 RSD-, CZ
AS203208 CTU_AS4_2, CZ
AS206908 PL-FORTUNA-GAME, CZ
AS20708 SKODA-AUTO Tr. Vaclava Klementa 869, CZ
AS206909 NMH-AS Slovak Telekom, SK
AS207696 DPP-AS Dopravni podnik hl.m. Prahy, a.s., CZ
AS207095 SK-FORTUNA-GAME, CZ
AS208329 CESKA_TELEVIZE, CZ
AS206198 ELVISDK-AS, SK
AS205080 SITA-CORPORATE, BE
AS209100 BBCLOUDGLOBALSERVICES, TW
AS208882 AS-COOLNET1-SK COOL NET, SK
AS203165 SPCSS, CZ
AS212537 KIASK-AS, SK
AS211731 MPSV-AS-, CZ
AS213247 JUKO, SK
AS213152 NBU, CZ
AS214396 SUDOLIO-AS, SK
AS21433 ACCENTUREFSSC London DC, GB
AS213057 INNOGY, CZ
AS215718 IBAGROUP, CZ
AS2571 DHLNET, CZ
AS28892 CUZK-NET, CZ
AS25093 CSAS-, CZ
AS21942 -Reserved AS-, ZZ
AS30898 CRSR-AS, SK
AS31127 SATRO, SK
AS29148 ASSURANY, SK
AS34443 PABK-AS, SK
AS216450 PRGAERO, CZ
AS34475 AGROSTROJ, CZ
AS35096 ALEFNULA, CZ
AS34521 ATOS-SK-AS, SK
AS34462 DITEC-AS, SK
AS42826 SNTVARIAS-AS, SK
AS43542 OPTONET-AS, CZ
AS47749 ORIFLAME-AS, CZ
AS48298 GOV, CZ
AS47767 RCO-AS, CZ
AS44424 AS44424, CZ
AS43757 ICZAS-, CZ
AS48907 ASNORTTEL, SK
AS48574 ASN-CZ-PLANET-A-48574, CZ
AS50695 VLP-AS, CZ
AS49117 DTNETSK-AS, SK
AS50698 TETA, CZ
AS49044 DIGI, SK
AS54189 HLIOP-ASN2, US
AS56891 ASCZRB Narodni rozvojova banka, a.s., CZ
AS50881 ESET-AS, SK
AS60086 VALVERA, CZ
AS59747 NIX-DR, CZ
AS58239 ASHANSPAULCITY, CZ
AS56955 JANGALBAC-NET, SK
AS48304 DIGMIA-AS1JBDI-RIPE, SK
AS39904 MERIT-AS MERIT GROUP a.s., CZ
AS214945 MZVCR, CZ
AS210117 ASORAVA, SK
AS202564 ITCITY, SK
AS6658 Bruselska 3, SK
AS60829 ASNEVERNET, SK
AS57788 RINGIERSK-AS, SK
AS44234 GAYA-AS P.O.Hviezdoslava 23B, SK
AS13036 TMOBILE-, CZ
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 574 AS6855 ORG+TRN Originate: 663296 /12.66 Transit: 1094656 /11.94 SK-TELEKOM Slovak Telekom T-Mobile CZ, SK
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 % 5799 AS6855 SK-TELEKOM Slovak Telekom T-Mobile CZ, SK 36 13 5 28 8 22.22% Prefix AS Path Aggregation Suggestion 78.98.0.0/15 6939 6855 84.47.0.0/17 6939 6855 85.239.68.0/23 2914 1299 6855 + Announce - aggregate of 85.239.68.0/24 (2914 1299 6855) and 85.239.69.0/24 (2914 1299 6855) 85.239.68.0/24 2914 1299 6855 - Withdrawn - aggregated with 85.239.69.0/24 (2914 1299 6855) 85.239.69.0/24 2914 1299 6855 - Withdrawn - aggregated with 85.239.68.0/24 (2914 1299 6855) 85.239.80.0/21 57866 1299 6855 + Announce - aggregate of 85.239.80.0/22 (57866 1299 6855) and 85.239.84.0/22 (57866 1299 6855) 85.239.80.0/23 57866 1299 6855 - Withdrawn - aggregated with 85.239.82.0/23 (57866 1299 6855) 85.239.82.0/23 57866 1299 6855 - Withdrawn - aggregated with 85.239.80.0/23 (57866 1299 6855) 85.239.84.0/22 57866 1299 6855 - Withdrawn - aggregated with 85.239.80.0/22 (57866 1299 6855) 85.248.31.0/24 6939 6855 85.248.74.0/24 6939 6855 87.197.0.0/16 6939 6855 91.127.0.0/16 6939 6855 91.195.106.0/23 57866 1299 6855 + Announce - aggregate of 91.195.106.0/24 (57866 1299 6855) and 91.195.107.0/24 (57866 1299 6855) 91.195.106.0/24 57866 1299 6855 - Withdrawn - aggregated with 91.195.107.0/24 (57866 1299 6855) 91.195.107.0/24 57866 1299 6855 - Withdrawn - aggregated with 91.195.106.0/24 (57866 1299 6855) 91.245.16.0/23 2914 1299 6855 95.102.0.0/15 6939 6855 178.40.0.0/15 6939 6855 185.58.102.0/23 6939 6855 + Announce - aggregate of 185.58.102.0/24 (6939 6855) and 185.58.103.0/24 (6939 6855) 185.58.102.0/24 6939 6855 - Withdrawn - aggregated with 185.58.103.0/24 (6939 6855) 185.58.103.0/24 6939 6855 - Withdrawn - aggregated with 185.58.102.0/24 (6939 6855) 193.84.7.0/24 57866 1299 6855 193.84.96.0/22 2914 1299 6855 + Announce - aggregate of 193.84.96.0/23 (2914 1299 6855) and 193.84.98.0/23 (2914 1299 6855) 193.84.96.0/24 2914 1299 6855 - Withdrawn - aggregated with 193.84.97.0/24 (2914 1299 6855) 193.84.97.0/24 2914 1299 6855 - Withdrawn - aggregated with 193.84.96.0/24 (2914 1299 6855) 193.84.98.0/23 2914 1299 6855 - Withdrawn - aggregated with 193.84.96.0/23 (2914 1299 6855) 193.84.245.0/24 57866 1299 6855 193.200.143.0/24 6939 6855 193.201.110.0/24 2914 1299 6855 194.48.241.0/24 57866 1299 6855 194.50.215.0/24 57866 1299 6855 194.154.224.0/19 6939 6855 194.169.224.0/24 57866 1299 6855 195.91.0.0/17 6939 6855 195.146.128.0/19 6939 6855 195.146.130.0/24 6939 6855 - Withdrawn - matching aggregate 195.146.128.0/19 6939 6855 195.216.240.0/24 6939 3320 6855 212.5.192.0/19 6939 6855 213.81.128.0/17 6939 6855 213.160.160.0/19 6939 6855
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS6855 12 More Specifics 34 Total Advertisements SK-TELEKOM Slovak Telekom T-Mobile CZ, SK
85.239.80.0/23 85.239.80.0/21
85.239.82.0/23 85.239.80.0/21
85.239.84.0/22 85.239.80.0/21
85.248.31.0/24 85.248.0.0/16
85.248.74.0/24 85.248.0.0/16
91.195.106.0/24 91.195.106.0/23
91.195.107.0/24 91.195.106.0/23
91.245.16.0/23 91.245.16.0/21
193.84.96.0/24 193.84.96.0/22
193.84.97.0/24 193.84.96.0/22
193.84.98.0/23 193.84.96.0/22
195.146.136.0/24 195.146.128.0/19
85.239.68.0/24 85.239.64.0/20
85.239.69.0/24 85.239.64.0/20
185.58.102.0/24 185.58.100.0/22
185.58.103.0/24 185.58.100.0/22
Prefixes added and withdrawn by this origin AS in the past 7 days.
- 85.239.68.0/24 Withdrawn
- 85.239.69.0/24 Withdrawn
- 185.58.102.0/24 Withdrawn
- 185.58.103.0/24 Withdrawn
whois: 402603
IANA has recorded AS6855 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS6855\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 'AS6714 - AS6878'
as-block: AS6714 - AS6878
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: 2018-11-22T15:27:23Z
last-modified: 2018-11-22T15:27:23Z
source: RIPE
% Information related to 'AS6855'
% Abuse contact for 'AS6855' is 'abuse@telekom.sk'
aut-num: AS6855
as-name: SK-TELEKOM
descr: Slovak Telekom / T-Mobile CZ
org: ORG-ST4-RIPE
remarks: --------------
remarks: -- Upstream --
remarks: --------------
import: from AS3320 action pref=60; accept ANY
import: from AS1299 action pref=60; accept ANY
remarks: -------------
remarks: -- Peering --
remarks: -------------
import: from AS-SIXSTIP-SET action pref=70; accept ANY
remarks: ----------------
remarks: -- Upstream --
remarks: --------------
export: to AS3320 announce AS-SLOVAK
export: to AS1299 announce AS-SLOVAK
export: to AS5588 announce AS13036
remarks: -------------
remarks: -- Peering --
remarks: -------------
export: to AS-SIXSTIP-SET announce AS-SLOVAK
remarks: ----------------
default: to AS3320 action pref=100; networks ANY
remarks: ==============================
remarks: Communities to control traffic
remarks: 6855:1101 Do not announce to SIX
remarks: 6855:1102 Do not announce to DT AS3320
remarks: 6855:1107 Do not announce to TeliaSonera AS1299
remarks: 6855:1201 Prepend 6855 when announcing to SIX
remarks: 6855:1202 Prepend 6855 when announcing to AS3320
remarks: 6855:1207 Prepend 6855 when announcing to AS1299
remarks: 6855:1301 Prepend 6855 6855 when announcing to SIX
remarks: 6855:1302 Prepend 6855 6855 when announcing to AS3320
remarks: 6855:1307 Prepend 6855 6855 when announcing to AS1299
remarks: 6855:50 SET_LOCAL_PREFERENCE to 50
remarks: 6855:90 SET_LOCAL_PREFERENCE to 90
remarks: LOC_PREF settings
remarks: 50 Customer routes - GLOBAL BACKUP
remarks: 60 Upstream providers
remarks: 70 Peering partners
remarks: 90 Customer routes - BACKUP links with ST AS6855
remarks: 100 Customer routes - PRIMARY connections
remarks: Other:
remarks: DSCP = 0 on ANY connection
remarks: (upstream, peer, customers, dial customers, VPN customers)
remarks: ================
remarks: Route colouring:
remarks: 6855:2401 Routes from SIX peering
remarks: 6855:2402 Routes from DT
remarks: 6855:2407 Routes from TeliaSonera
remarks: 6855:2700 Default route
remarks: POP NAME POP ID PA comm strings PI comm strings
remarks: xx 6855:26xx 6855:25xx
remarks: ==================================================
admin-c: STIP-RIPE
tech-c: STIP-RIPE
status: ASSIGNED
mnt-by: RIPE-NCC-END-MNT
mnt-by: SK-TELECOM-MNT
created: 1970-01-01T00:00:00Z
last-modified: 2020-11-02T09:17:37Z
source: RIPE
organisation: ORG-ST4-RIPE
org-name: Slovak Telekom, a.s.
country: SK
reg-nr: 35 763 469
org-type: LIR
address: Bajkalska 28
address: 817 62
address: Bratislava
address: SLOVAKIA
phone: +421258823205
mnt-ref: SK-TELECOM-MNT
mnt-ref: RIPE-NCC-HM-MNT
mnt-by: RIPE-NCC-HM-MNT
mnt-by: SK-TELECOM-MNT
admin-c: JK1887-RIPE
admin-c: RJAR-RIPE
admin-c: SI261-RIPE
admin-c: MM34621-RIPE
admin-c: MB1059-RIPE
abuse-c: STIP-RIPE
created: 2004-04-17T12:06:36Z
last-modified: 2026-05-13T07:31:07Z
source: RIPE # Filtered
role: Slovak Telecom Network Administrator
address: Slovak Telekom, a.s.
address: Bajkalska 28, 81762 Bratislava, Slovak republic
abuse-mailbox: abuse@telekom.sk
admin-c: JK1887-RIPE
tech-c: JK1887-RIPE
tech-c: MM34621-RIPE
tech-c: RJAR-RIPE
nic-hdl: STIP-RIPE
mnt-by: SK-TELECOM-MNT
created: 2002-10-14T08:17:59Z
last-modified: 2015-05-12T11:27:29Z
source: RIPE # Filtered
% This query was served by the RIPE Database Query Service version 1.122.1 (DEXTER)