AS Number
AS Name
Org Name
CD-Telematika a.s.






AS25512 Looking Glass






IPv6 NUMs(/64)


118,784 IPv4 Addresses
CIDR Description IP Num CD-Telematika a.s. 4096 CD-Telematika a.s. 8192 CD-Telematika a.s. 16384 CD-Telematika a.s. 16384 CD-Telematika a.s. 4096 FIBER CONNECTIONS s.r.o. 512 CD-Telematika a.s. 32768 Jiri Pondelicek 512 CD-Telematika a.s. 2048 CD-Telematika a.s. 1024 CD-Telematika a.s. 8192 CD-Telematika a.s. 8192 CD-Telematika a.s. 16384
CIDR Description IP NUMs(prefix /64)
2001:1a48::/32 CD-Telematika a.s. 4294967296
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS1764 NEXTLAYER-AS - Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH, AT Austria 87,552 244,813,398,016 IPv4 IPv4 IPv6 IPv6
AS8218 NEO-ASN - Zayo Infrastructure France SA, FR France 47,616 12,884,967,424 IPv4 IPv4 IPv6 IPv6
AS14840 COMMCORP COMUNICACOES LTDA, BR Brazil 63,488 15,083,634,688 IPv4 IPv4 IPv6 IPv6
AS24482 SGGS-AS-AP - SG.GS, SG Singapore 21,504 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS33891 CORE-BACKBONE - Core-Backbone GmbH, DE Germany 0 0 IPv4 IPv4 IPv6 IPv6
AS39120 CONVERGENZE-AS - Convergenze S.p.A., IT Italy 38,144 12,884,901,888 IPv4 IPv4 IPv6 IPv6
AS49544 i3Dnet - B.V, NL Netherlands 101,376 341,184,020,480 IPv4 IPv4 IPv6 IPv6
AS174 COGENT-174 - Cogent Communications, US United States 27,330,560 192,694,648,832 IPv4 IPv4 IPv6 IPv6
AS1299 TWELVE99 - Arelion Sweden AB, SE Sweden 229,376 81,641,013,248 IPv4 IPv4 IPv6 IPv6
AS2852 CESNET2 - CESNET z.s.p.o., CZ Czech 848,896 34,359,738,368 IPv4 IPv4
AS6939 HURRICANE - Hurricane Electric LLC, US United States 509,696 282,666,035,576,832 IPv4 IPv4 IPv6 IPv6
AS40994 Alwyzon - Hohl IT e.U., AT Austria 2,560 4,295,032,832 IPv4 IPv4 IPv6 IPv6
AS57463 NetIX - NetIX Communications JSC, BG Bulgaria 256 0 IPv4 IPv4 IPv6 IPv6
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS47131 PH - PH, spol. s r. o., CZ Czech 2,048 0 IPv4 IPv4
AS47868 SUPRO-AS - SUPRO, spol. s r.o., CZ Czech 4,096 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS48417 ITS-CZ - ITS akciova spolecnost, CZ Czech 4,096 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS56827 ASMIRNETCZ - mirnet s.r.o., CZ Czech 1,024 0 IPv4 IPv4
AS200355 CADCANET - CadcaNet plus s. r. o., SK Slovakia 1,024 0 IPv4 IPv4
AS6881 NIXCZ - NIX.CZ z.s.p.o., CZ Czech 2,560 8,589,934,592 IPv4 IPv4 IPv6 IPv6
AS20708 SKODA-AUTO - SKODA AUTO a.s., CZ Czech 1,024 65,536 IPv4 IPv4
AS35046 OMEGAPLUS-AS - OMEGA plus Chrudim s.r.o., CZ Czech 7,168 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS43614 ECONOMIA-CZ - Economia a.s., CZ Czech 3,072 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS47767 RCO-AS - Regionalni centrum Olomouc s.r.o., CZ Czech 2,048 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS56450 ALBERON_AS - Alberon Letohrad s.r.o, CZ Czech 4,096 34,359,738,368 IPv4 IPv4 IPv6 IPv6
AS197019 WEDOS - WEDOS Internet, a.s., CZ Czech 10,240 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS197550 ASINET4YOU -, spol. s r.o., CZ Czech 4,096 0 IPv4 IPv4
AS3161 ASITPROFI - IT PROFI s.r.o., CZ Czech 512 0 IPv4 IPv4
AS213387 TESUNET - TeSuNet s.r.o., CZ Czech 256 0 IPv4 IPv4
AS43507 RETE-AS - RETE internet, s.r.o., CZ Czech 8,192 0 IPv4 IPv4
AS51524 ASNETDELUXE - Ales Tesacek, CZ Czech 2,048 0 IPv4 IPv4
AS56717 RESAL-AS - OG Soft s.r.o., CZ Czech 256 65,536 IPv4 IPv4 IPv6 IPv6
AS197698 DHT_Systems - D-H-T SYSTEMS s.r.o., CZ Czech 512 0 IPv4 IPv4
AS20609 kazaczsro - s.r.o., CZ Czech 2,048 4,295,032,832 IPv4 IPv4 IPv6 IPv6
AS51331 ModernTV - SychrovNET s.r.o, CZ Czech 1,536 50,331,648 IPv4 IPv4 IPv6 IPv6
AS51449 KTUO-AS - Kabelova televize Usti nad Orlici, spol. s r. o., CZ Czech 1,024 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS200155 AS-TCPISEK-CZ - digital cave s.r.o., CZ Czech 1,024 34,359,738,368 IPv4 IPv4 IPv6 IPv6
AS60275 AS_RVTECH - RVTech s.r.o., CZ Czech 0 65,536 IPv6 IPv6
AS50975 AVX_AS - KYOCERA AVX Components s.r.o., CZ Czech 2,048 0 IPv4 IPv4

Peers at this Exchange Point

Country/Region IX IPv4 IPv6 Port Speed Updated
Czech NIX.CZ - Neutral Internet Exchange in the Czech Republic 2001:7f8:14::1f:2 100 Gbps 2020-11-28 09:36:22
Czech NIX.CZ - Neutral Internet Exchange in the Czech Republic 2001:7f8:14::1f:1 100 Gbps 2020-11-28 09:36:22
Slovakia NIX.SK - Neutral Internet eXchange Slovakia 2001:7f8:91::35:1 10 Gbps 2018-06-25 08:19:40

Private Peering Facilities

Country/Region Name City Website Updated
CE Colo Prague Prague 2016-03-14 20:50:34
Sitel Bratislava Bratislava 2018-06-25 08:19:59
IP Address Domain NUMs Domains 1 1 1 5 1 9 2 2 1 1
as-block:       AS25365 - AS25542
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:        2018-11-22T15:27:30Z
last-modified:  2018-11-22T15:27:30Z
source:         RIPE

aut-num:        AS25512
as-name:        CDT-AS
descr:          The Czech Republic
org:            ORG-CTa3-RIPE
remarks:        # TRANSIT
import:         from AS1299 accept ANY # TELIA
export:         to AS1299 announce AS-CDT-NETWORKS
import:         from AS174 accept ANY # COGENT
export:         to AS174 announce AS-CDT-NETWORKS
remarks:        # Peering
import:         from AS6881 accept ANY # NIXCZ
export:         to AS6881 announce AS-CDT-NETWORKS
import:         from AS47200 accept ANY # NIX Routeservers
export:         to AS47200 announce ANY
import:         from AS47627 accept ANY # NIXSK Routeservers
export:         to AS47627 announce ANY
remarks:        # CUSTOMERS
import:         from AS6881 accept ANY # NIX
export:         to AS6881 announce ANY
import:         from AS21241 accept ANY # MUZO
export:         to AS21241 announce ANY
import:         from AS34040 accept ANY # TTNET
export:         to AS34040 announce ANY
import:         from AS35046 accept ANY # Omega
export:         to AS35046 announce ANY
import:         from AS43507 accept ANY # RETE
export:         to AS43507 announce ANY
import:         from AS44424 accept ANY # MALL
export:         to AS44424 announce ANY
import:         from AS47767 accept ANY # RCO
export:         to AS47767 announce ANY
import:         from AS47868 accept ANY # SUPRO
export:         to AS47868 announce ANY
import:         from AS48417 accept ANY # ITS
export:         to AS48417 announce ANY
import:         from AS56450 accept ANY # ALBERON
export:         to AS56450 announce ANY
import:         from AS197550 accept ANY # INTERNET4YOU
export:         to AS197550 announce ANY
import:         from AS49101 accept ANY # KTCZ
export:         to AS49101 announce ANY
import:         from AS51524 accept ANY # ATESACEK
export:         to AS51524 announce ANY
import:         from AS56827 accept ANY # MIRNET SRO
export:         to AS56827 announce ANY
import:         from AS198403 accept ANY # MATRIGO
export:         to AS198403 announce ANY
import:         from AS56717 accept ANY # RESAL
export:         to AS56717 announce ANY
import:         from AS197698 accept ANY # D-H-T
export:         to AS197698 announce ANY
import:         from AS47131 accept ANY # PHSPOL
export:         to AS47131 announce ANY
import:         from AS43614 accept ANY # ECONOMIA
export:         to AS43614 announce ANY
import:         from AS56456 accept ANY # C2NET
export:         to AS56456 announce ANY
import:         from AS20708 accept ANY # SKODA AUTO a.s.
export:         to AS20708 announce ANY
import:         from AS62178 accept ANY # MASTER IT
export:         to AS62178 announce ANY
import:         from AS49488 accept ANY # TLD via NIX
export:         to AS49488 announce ANY
import:         from AS60275 accept ANY # RVTECH
export:         to AS60275 announce ANY
import:         from AS3161 accept ANY # IT Profi Vimperk
export:         to AS3161 announce ANY
import:         from AS20609 accept ANY # Kaza
export:         to AS20609 announce ANY
import:         from AS30738 accept ANY # Netart
export:         to AS30738 announce ANY
import:         from AS50975 accept ANY # AVX_AS
export:         to AS50975 announce ANY
import:         from AS62159 accept ANY # HAPPY Technik
export:         to AS62159 announce ANY
import:         from AS197019 accept ANY # Wedos
export:         to AS197019 announce ANY
import:         from AS200155 accept ANY # TCPISEK-CZ
export:         to AS200155 announce ANY
import:         from AS200355 accept ANY # CADCANET
export:         to AS200355 announce ANY
import:         from AS201457 accept ANY # KOOPERATIVA-AS
export:         to AS201457 announce ANY
import:         from AS42908 accept ANY # AS-NORDICTELECOM
export:         to AS42908 announce ANY
import:         from AS213387 accept ANY # TESUNET
export:         to AS213387 announce ANY
remarks:        End of list
admin-c:        CDT-RIPE
tech-c:         CDT-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         CDT-MNT
created:        2002-12-17T14:28:40Z
last-modified:  2021-05-10T06:59:39Z
source:         RIPE

organisation:   ORG-CTa3-RIPE
org-name:       CD-Telematika a.s.
country:        CZ
org-type:       LIR
address:        Pernerova 2819/2a
address:        130 00,
address:        Praha 3
address:        CZECH REPUBLIC
phone:          +420210021695
fax-no:         +420210021610
e-mail:         [email protected]
admin-c:        CJ167-RIPE
admin-c:        PL1116-RIPE
abuse-c:        CDT-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        CDT-MNT
notify:         [email protected]
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         CDT-MNT
created:        2004-04-17T11:04:09Z
last-modified:  2023-12-20T07:04:08Z
source:         RIPE

role:           CDT hostmaster
address:        CD-Telematika a.s.
address:        Pod Taborem 6
address:        Praha 9
address:        191 00
address:        The Czech Republic
phone:          +420 210021 685
fax-no:         +420 210021 699
e-mail:         [email protected]
remarks:        --------------------------------------------------
remarks:        abuse and spam reports please mail to [email protected]
remarks:        peering and technical communication
remarks:        mail to ip(at)
remarks:        --------------------------------------------------
admin-c:        PL1116-RIPE
admin-c:        CJ167-RIPE
admin-c:        ZP642-RIPE
tech-c:         PL1116-RIPE
tech-c:         CJ167-RIPE
tech-c:         ZP642-RIPE
abuse-mailbox:  [email protected]
nic-hdl:        CDT-RIPE
mnt-by:         CDT-MNT
created:        2004-01-26T14:58:45Z
last-modified:  2022-10-04T10:12:54Z
source:         RIPE