51248 HOST-TELECOM, CZ
Adjacency: 10 Upstream: 7 Downstream: 3
Upstream Adjacent AS list
AS29208 QUANTCOM-AS Quantcom a.s., CZ
AS3257 GTT-BACKBONE GTT, US
AS9002 RETN-AS, GB
AS6939 HURRICANE, US
AS1299 TWELVE99 Arelion, fka Telia Carrier, SE
AS174 COGENT-174, US
AS3223 VOXILITY, GB
Downstream Adjacent AS list
AS199669 ATLEX-AS, RU
AS215305 PLANETA-AS, RU
AS62212 , EE
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 9433 AS51248 ORG+TRN Originate: 12032 /18.45 Transit: 8960 /18.87 HOST-TELECOM, CZ
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 % 47488 AS51248 HOST-TELECOM, CZ 12 0 0 12 0 0.00% Prefix AS Path Aggregation Suggestion 5.43.224.0/21 6939 51248 45.10.191.0/24 6939 51248 45.129.142.0/24 6939 51248 85.137.25.0/24 6939 51248 91.209.77.0/24 6939 51248 135.106.134.0/23 6939 51248 158.255.32.0/21 6939 51248 158.255.39.0/24 6939 3223 51248 176.74.216.0/21 6939 51248 185.8.56.0/22 6939 51248 188.124.56.0/21 6939 51248 193.161.84.0/22 6939 51248
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS51248 11 More Specifics 19 Total Advertisements HOST-TELECOM, CZ
45.10.191.0/24 45.10.188.0/22
45.140.167.0/24 45.140.164.0/22
81.25.71.0/24 81.25.68.0/22
138.124.182.0/24 138.124.180.0/21
158.255.39.0/24 158.255.32.0/21
185.65.202.0/24 185.65.200.0/22
188.130.208.0/24 188.130.192.0/19
192.145.98.0/24 192.145.96.0/22
212.22.70.0/24 212.22.64.0/19
212.22.81.0/24 212.22.64.0/19
212.22.87.0/24 212.22.64.0/19
Prefixes added and withdrawn by this origin AS in the past 7 days.
+ 45.140.167.0/24 Announced
+ 91.241.168.0/21 Announced
+ 138.124.182.0/24 Announced
+ 185.65.202.0/24 Announced
+ 212.22.70.0/24 Announced
+ 212.22.81.0/24 Announced
+ 212.22.87.0/24 Announced
whois: 402590
IANA has recorded AS51248 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS51248\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 'AS50893 - AS51311'
as-block: AS50893 - AS51311
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: 2024-12-10T14:54:30Z
last-modified: 2024-12-10T14:54:30Z
source: RIPE
% Information related to 'AS51248'
% Abuse contact for 'AS51248' is 'abuse@host-telecom.cz'
aut-num: AS51248
as-name: HOST-TELECOM
org: ORG-Hs41-RIPE
remarks: -----------------------------------------------
remarks: --= Okay-Telecom Ltd. =--
import: from AS199669 accept AS-ATLEX
export: to AS199669 announce AS-HOST-TELECOM-CZ
mp-import: afi ipv6.unicast from AS199669 accept AS-ATLEX
mp-export: afi ipv6.unicast to AS199669 announce AS-HOST-TELECOM-CZ
remarks: --= Cogent Communications =--
import: from AS174 accept ANY
export: to AS174 announce AS-HOST-TELECOM-CZ
mp-import: afi ipv6.unicast from AS174 accept ANY
mp-export: afi ipv6.unicast to AS174 announce AS-HOST-TELECOM-CZ
remarks: --= Dial Telecom, a.s. =--
import: from AS29208 accept ANY
export: to AS29208 announce AS-HOST-TELECOM-CZ
mp-import: afi ipv6.unicast from AS29208 accept ANY
mp-export: afi ipv6.unicast to AS29208 announce AS-HOST-TELECOM-CZ
remarks: --= NIX.CZ z.s.p.o. =--
import: from AS6881 accept ANY
export: to AS6881 announce AS-HOST-TELECOM-CZ
mp-import: afi ipv6.unicast from AS6881 accept ANY
mp-export: afi ipv6.unicast to AS6881 announce AS-HOST-TELECOM-CZ
remarks: --= Hurricane Electric, Inc. =--
import: from AS6939 accept ANY
export: to AS6939 announce AS-HOST-TELECOM-CZ
remarks: --= ReTN.net Autonomous System =--
import: from AS9002 accept ANY
export: to AS9002 announce AS-HOST-TELECOM-CZ
mp-import: afi ipv6.unicast from AS9002 accept ANY
mp-export: afi ipv6.unicast to AS9002 announce AS-HOST-TELECOM-CZ
remarks: --= GBXS-AS M247 Ltd =--
import: from AS9009 accept ANY
export: to AS9009 announce AS-HOST-TELECOM-CZ
mp-import: afi ipv6.unicast from AS9009 accept ANY
mp-export: afi ipv6.unicast to AS9009 announce AS-HOST-TELECOM-CZ
remarks: --= GlobalNet LLC =--
import: from AS31500 accept ANY
export: to AS31500 announce AS-HOST-TELECOM-CZ
mp-import: afi ipv6.unicast from AS31500 accept ANY
mp-export: afi ipv6.unicast to AS31500 announce AS-HOST-TELECOM-CZ
remarks: --= Voxility S.R.L. =--
import: from AS3223 accept ANY
export: to AS3223 announce AS-HOST-TELECOM-CZ
export: to AS3223 announce AS199669
mp-import: afi ipv6.unicast from AS3223 accept ANY
mp-export: afi ipv6.unicast to AS3223 announce AS-HOST-TELECOM-CZ
remarks: --= Arelion Sweden AB =--
import: from AS1299 accept ANY
export: to AS1299 announce AS-HOST-TELECOM-CZ
mp-import: afi ipv6.unicast from AS1299 accept ANY
mp-export: afi ipv6.unicast to AS1299 announce AS-HOST-TELECOM-CZ
remarks: --= Kaora, s.r.o. =--
import: from AS42000 accept ANY
export: to AS42000 announce AS-HOST-TELECOM-CZ
remarks: --= NIX.CZ z.s.p.o. =--
import: from AS47200 accept ANY
export: to AS47200 announce AS-HOST-TELECOM-CZ
mp-import: afi ipv6.unicast from AS47200 accept ANY
mp-export: afi ipv6.unicast to AS47200 announce AS-HOST-TELECOM-CZ
remarks: --= Facebook Corp =--
import: from AS32934 accept ANY
export: to AS32934 announce AS-HOST-TELECOM-CZ
mp-import: afi ipv6.unicast from AS32934 accept ANY
mp-export: afi ipv6.unicast to AS32934 announce AS-HOST-TELECOM-CZ
remarks: --= Root Server Technical Operations =--
import: from AS112 accept ANY
export: to AS112 announce AS-HOST-TELECOM-CZ
mp-import: afi ipv6.unicast from AS112 accept ANY
mp-export: afi ipv6.unicast to AS112 announce AS-HOST-TELECOM-CZ
remarks: --= SmartApe_net =--
import: from AS62212 accept AS62212
import: from AS62212 accept AS216139
export: to AS62212 announce { 0.0.0.0/0 }
mp-import: afi ipv6.unicast from AS62212 accept AS62212
mp-import: afi ipv6.unicast from AS62212 accept AS216139
mp-export: afi ipv6.unicast to AS62212 announce { 0::0/0 }
remarks: --= SIA Piter-IX =--
import: from AS48193 accept ANY
export: to AS48193 announce AS-HOST-TELECOM-CZ
mp-import: afi ipv6.unicast from AS48193 accept ANY
mp-export: afi ipv6.unicast to AS48193 announce AS-HOST-TELECOM-CZ
remarks: --= GTT =--
import: from AS3257 accept ANY
export: to AS3257 announce AS-HOST-TELECOM-CZ
mp-import: afi ipv6.unicast from AS3257 accept ANY
mp-export: afi ipv6.unicast to AS3257 announce AS-HOST-TELECOM-CZ
remarks: -----------------------------------------------
admin-c: PC9290-RIPE
tech-c: KR258-RIPE
status: ASSIGNED
mnt-by: RIPE-NCC-END-MNT
mnt-by: HOST-TELECOM-MNT
mnt-by: NM35866-MNT
mnt-by: ALSAUT-MNT
created: 2010-06-30T09:42:32Z
last-modified: 2026-06-04T12:10:29Z
source: RIPE
organisation: ORG-Hs41-RIPE
org-name: Host-Telecom.com s.r.o.
country: CZ
reg-nr: 26103133
org-type: LIR
address: Pod Rafandou 906
address: 39181
address: Veseli nad Luznici
address: CZECH REPUBLIC
phone: +420391000777
fax-no: +420391000777
admin-c: ALEX24-RIPE
admin-c: PC9290-RIPE
abuse-c: HTAT1-RIPE
mnt-ref: RIPE-NCC-HM-MNT
mnt-ref: NM35866-MNT
mnt-by: RIPE-NCC-HM-MNT
mnt-by: NM35866-MNT
created: 2011-05-18T13:33:45Z
last-modified: 2026-05-13T07:33:35Z
source: RIPE # Filtered
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