AS Number
AS47232
AS Name
ISPAlliance
Org Name
ISP Alliance a.s.
Country / Region
Czech
Registry

ripe

RegDate

Updated

2025-10-23T14:06:40Z

AS47232 Looking Glass
IPv4Prefixes

10

IPv6Prefixes

6

IPv4 NUMs

9,984

IPv6 NUMs(/64)

103,079,215,104

CIDR Description IP Num
5.39.200.0/23
IRR Valid
PrimeNET.CZ ISP s.r.o. 512
46.29.224.0/21
IRR Valid
ISP Alliance a.s. 2048
78.111.112.0/20
IRR InValid
ISP Alliance a.s. 4096
94.140.25.0/24
IRR Valid
HelaPC s.r.o. 256
148.59.93.0/24
IRR Valid
HelaPC s.r.o. 256
185.15.108.0/22
IRR Valid
ISP Alliance a.s. 1024
185.52.172.0/24
IRR Valid
ISPAlliance 256
185.151.171.0/24
IRR Valid
ISP Alliance 256
193.107.160.0/22
IRR Valid
MACOnet s. r. o. 1024
195.26.25.0/24
IRR Valid
Omcom s.r.o. 256
CIDR Description IP NUMs(prefix /64)
2a02:17a0::/29
IRR InValid
ISP Alliance a.s. 34359738368
2a02:17a0:d000::/36
IRR Valid
ISP Alliance 268435456
2a03:2a80::/29
IRR Valid
ISP Alliance a.s. 34359738368
2a03:2a82::/31
IRR Valid
ISP Alliance a.s. 8589934592
2a04:7bc0::/29
IRR Valid
ISP Alliance a.s. 34359738368
2a04:7bc7::/32
IRR Valid
ISP Alliance 4294967296
AS Description Country / Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS6663 TTI-NET - Euroweb Romania S.R.L., RO Romania 39,680 6,442,450,944 IPv4 IPv4 IPv6 IPv6
AS9009 M247 - M247 Europe SRL, RO Romania 1,569,536 257,769,079,040 IPv4 IPv4
AS51184 FONIRA - Fonira Telekom GmbH, AT Austria 13,824 111,669,149,696 IPv4 IPv4 IPv6 IPv6
AS1299 TWELVE99 - Arelion Sweden AB, SE Sweden 411,392 77,326,778,368 IPv4 IPv4 IPv6 IPv6
AS39392 SuperNetwork - SH.cz s.r.o., CZ Czech 31,744 73,014,509,568 IPv4 IPv4 IPv6 IPv6
AS53062 GGNET TELECOMUNICACOES LTDA, BR Brazil 28,416 4,848,746,496 IPv4 IPv4
AS57463 NetIX - NetIX Communications JSC, BG Bulgaria 256 0 IPv4 IPv4 IPv6 IPv6
AS22356 Durand do Brasil Ltda, BR Brazil 25,856 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS6204 ZET-NET - INTERKVM HOST SRL, RO Romania 3,840 268,500,999 IPv4 IPv4
AS6461 ZAYO-6461 - Zayo Bandwidth, US United States 1,751,552 51,808,436,224 IPv4 IPv4 IPv6 IPv6
AS35369 LINZAG-TELEKOM-AS - LINZ STROM GAS WAERME GmbH fuer Energiedienstleistungen und Telekommunikation, AT Austria 38,400 4,295,032,832 IPv4 IPv4
AS6939 HURRICANE - Hurricane Electric LLC, US United States 458,496 283,043,982,606,336 IPv4 IPv4 IPv6 IPv6
AS13199 DOUBRAVA-NET - Jaroslav Doubrava, CZ Czech 1,024 34,359,738,368 IPv4 IPv4
AS4455 BSO - IX Reach Ltd, GB United Kingdom 64,256 12,884,967,424 IPv4 IPv4
AS8218 NEO-ASN - Zayo Infrastructure France SA, FR France 47,104 12,884,967,424 IPv4 IPv4 IPv6 IPv6
AS32590 VALVE-CORPORATION - Valve Corporation, US United States 13,568 2,293,760 IPv4 IPv4 IPv6 IPv6
AS49544 i3Dnet - i3D.net B.V, NL Netherlands 116,992 356,753,080,320 IPv4 IPv4 IPv6 IPv6
AS59890 Kabel-TV-Lampert - Kabel-TV Lampert GmbH & Co KG, AT Austria 13,312 34,359,738,368 IPv4 IPv4 IPv6 IPv6
AS60602 INOVARE-AS - Inovare-Prim SRL, MD Moldova 3,584 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS37721 Virtual-Technologies-Solutions-SA - Virtual Technologies & Solutions, BF Burkina Faso 15,872 8,589,934,592 IPv4 IPv4 IPv6 IPv6
AS47692 NESSUS - Nessus GmbH, AT Austria 37,376 34,359,869,440 IPv4 IPv4
AS15943 WTNET-AS - wilhelm.tel GmbH, DE Germany 354,560 38,654,836,736 IPv6 IPv6
AS1764 NEXTLAYER-AS - Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH, AT Austria 84,736 236,223,463,424 IPv4 IPv4 IPv6 IPv6
AS3257 GTT-BACKBONE - GTT Communications Inc., US United States 8,552,448 442,382,745,600 IPv4 IPv4 IPv6 IPv6
AS39120 CONVERGENZE-AS - Convergenze S.p.A., IT Italy 42,496 17,179,869,184 IPv4 IPv4
AS41327 FIBERTELECOM-AS - Fiber Telecom S.p.A., IT Italy 7,168 68,719,476,736 IPv4 IPv4 IPv6 IPv6
AS263444 Open X Tecnologia Ltda, BR Brazil 2,048 2,147,483,648 IPv4 IPv4 IPv6 IPv6
AS14840 BR.Digital Telecom, BR Brazil 72,960 14,010,613,760 IPv4 IPv4 IPv6 IPv6
AS24482 SGGS-AS-AP - SG.GS, SG Singapore 20,992 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS40994 Alwyzon - Hohl IT e.U., AT Austria 5,632 38,654,705,664 IPv4 IPv4 IPv6 IPv6
AS Description Country / Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS50163 altnet-skvelynet - Altnet s.r.o., CZ Czech 2,048 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS56566 SATT-AS - SATT a.s., CZ Czech 12,032 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS197879 HELAPC - HelaPC s.r.o., CZ Czech 3,328 68,719,476,736 IPv4 IPv4 IPv6 IPv6
AS15614 Dragon - Dragon Internet a.s., CZ Czech 19,968 34,359,738,368 IPv4 IPv4
AS20723 MGI - AVONET, s.r.o., CZ Czech 16,384 34,359,738,368 IPv4 IPv4 IPv6 IPv6
AS57077 AB-NET - AB-NET s.r.o., CZ Czech 3,072 4,294,967,296 IPv4 IPv4
AS201476 Wolfnet - ISP Alliance a.s., CZ Czech 8,704 34,359,803,904 IPv4 IPv4 IPv6 IPv6
AS201533 UNITED_NETWORKS_SE - United Networks SE, CZ Czech 1,024 0 IPv4 IPv4
AS202774 comtex - ISP Alliance a.s., CZ Czech 1,024 34,359,738,368 IPv4 IPv4 IPv6 IPv6
AS210712 GRAPESC-ISP - ISP Alliance a.s., CZ Czech 14,336 17,179,869,184 IPv4 IPv4 IPv6 IPv6
AS205535 WINDYGHOUL - Windyghoul s.r.o., CZ Czech 1,024 34,359,738,368 IPv6 IPv6
AS33883 TRIONET-CZ-AS - TRIOPTIMUM s.r.o., CZ Czech 7,168 34,359,738,368 IPv4 IPv4 IPv6 IPv6
AS35236 AS35236 - UVT Internet s.r.o., CZ Czech 10,496 60,129,673,216 IPv4 IPv4 IPv6 IPv6
AS52084 ATLELEKTROCZ - ISP Alliance a.s., CZ Czech 2,048 0 IPv4 IPv4
AS60529 PRASLAVICENET - Miroslav Klement, CZ Czech 2,048 0 IPv4 IPv4
AS62403 PLETX - PletX GmbH, DE Germany 1,024 131,072 IPv4 IPv4
AS197393 ASRUDOLFNET - ISP Alliance a.s., CZ Czech 2,048 34,359,738,368 IPv4 IPv4 IPv6 IPv6
AS201464 ok-net - ISP Alliance a.s., CZ Czech 256 0 IPv4 IPv4
AS202877 vejnet - VEJNET.CZ s.r.o., CZ Czech 1,280 34,359,738,368 IPv4 IPv4 IPv6 IPv6
AS12570 ITSELF - O2 Czech Republic, a.s., CZ Czech 53,760 38,654,705,664 IPv4 IPv4
AS34955 ASVICENIK - Martin Vicenik, CZ Czech 3,072 0 IPv4 IPv4
AS42306 EDERA_Group - Edera Group a.s., CZ Czech 20,480 137,438,953,472 IPv4 IPv4
AS49025 PROZETA-NET - PRO-ZETA a.s., CZ Czech 3,328 268,435,456 IPv4 IPv4
AS50971 JHCOMP-AS - JHComp s.r.o., CZ Czech 2,048 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS57279 SAURONNET - Sauron CZ s.r.o., CZ Czech 4,096 4,294,967,296 IPv4 IPv4
AS198814 ASALPHASTYLSOFT - ALPHA StylSoft, s.r.o., CZ Czech 1,024 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS201559 UNITED_NETWORKS_SE - United Networks SE, CZ Czech 1,024 17,179,869,184 IPv4 IPv4 IPv6 IPv6
AS35046 OMEGAPLUS-AS - OMEGA plus Chrudim s.r.o., CZ Czech 7,168 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS47727 WARNETCZ-AS - Warnet.cz s.r.o., CZ Czech 1,024 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS56624 ASRTYNENET - Rtyne.net s.r.o., CZ Czech 3,072 0 IPv4 IPv4
AS202131 Wave-net - ISP Alliance a.s., CZ Czech 512 0 IPv4 IPv4
AS202618 rychlydrat - Rychly drat, s.r.o., CZ Czech 5,120 34,359,738,368 IPv4 IPv4 IPv6 IPv6
AS202921 CC_INTERNET - CC INTERNET s.r.o., CZ Czech 3,072 34,359,738,368 IPv4 IPv4
AS206951 BMBGreen - BMB-Green s.r.o., CZ Czech 1,024 34,359,738,368 IPv4 IPv4 IPv6 IPv6
AS208847 ASfryzl - Martin Fryzl, CZ Czech 1,024 0 IPv4 IPv4
AS13199 DOUBRAVA-NET - Jaroslav Doubrava, CZ Czech 1,024 34,359,738,368 IPv4 IPv4 IPv6 IPv6
AS44002 SYS-DATACOM - Sys-DataCom s.r.o., CZ Czech 3,072 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS196735 AS-JONCZ - PODA a.s., CZ Czech 16,384 4,294,967,296 IPv4 IPv4
AS197296 UNITED_NETWORKS_SE - United Networks SE, CZ Czech 6,656 34,359,738,368 IPv4 IPv4 IPv6 IPv6
AS204064 CEZNET-AS - CEZNET s.r.o., CZ Czech 4,096 34,359,738,368 IPv4 IPv4 IPv6 IPv6
AS207886 ECOMPEU-CZ - ECOMP spol s r.o., CZ Czech 1,024 34,359,803,904 IPv4 IPv4 IPv6 IPv6
AS29134 IGNUM-AS - Webglobe, s.r.o., CZ Czech 22,272 47,513,075,712 IPv4 IPv4 IPv6 IPv6
AS44712 eHAMnet-AS - eHAMnet, s.r.o., CZ Czech 2,048 34,359,738,368 IPv4 IPv4
AS50415 Ahosting - Ahosting a.s., CZ Czech 1,024 34,359,738,368 IPv4 IPv4 IPv6 IPv6
AS199405 OSLAVANY-NET-AS - Oslavany.NET, spolek, CZ Czech 1,024 4,294,967,296 IPv4 IPv4
AS201625 UNITED_NETWORKS_SE - United Networks SE, CZ Czech 1,024 34,359,738,368 IPv4 IPv4 IPv6 IPv6
AS204666 TLAPNET-CZ - Jiri Tlapak, CZ Czech 15,104 279,172,874,240 IPv4 IPv4 IPv6 IPv6
AS209621 dobnet - DOBNET, z.s., CZ Czech 1,024 34,359,738,368 IPv4 IPv4 IPv6 IPv6
AS210139 DPT - DPT s.r.o., CZ Czech 3,072 34,359,738,368 IPv4 IPv4
AS39455 Tlapnet-SK-AS - Jiri Tlapak, CZ Czech 1,024 0 IPv4 IPv4
AS44500 vlasimnet - Vlasimnet s.r.o., CZ Czech 2,048 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS202297 SKYLON - Skylon Solutions Limited, GB United Kingdom 512 4,296,278,016 IPv4 IPv4
AS205002 AS_IWAO - CUBESOL, s.r.o., CZ Czech 1,024 34,359,738,368 IPv4 IPv4 IPv6 IPv6
AS212975 TEAMCITY-AS - TeamCity s.r.o., CZ Czech 1,024 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS51400 ASSPOJENET - SPOJE.NET s.r.o., CZ Czech 2,048 65,536 IPv6 IPv6

Peers at this Exchange Point

Country / Region IX IPv4 IPv6 Port Speed Updated
Czech NIX.CZ - Neutral Internet Exchange in the Czech Republic 91.210.16.109 2001:7f8:14::33:1 800 Gbps 2026-07-02 00:08:12
Czech Peering.cz - Peering.cz eXchange 185.0.20.23 2001:7f8:7f::23 200 Gbps 2023-03-19 10:02:23
Czech NIX.CZ - Neutral Internet Exchange in the Czech Republic 91.210.16.143 2001:7f8:14::33:2 800 Gbps 2026-07-02 00:08:12
Czech Peering.cz - Peering.cz eXchange 185.0.20.22 2001:7f8:7f::22 200 Gbps 2023-03-19 10:02:23

Private Peering Facilities

Country / Region Name City Website Updated
CE Colo Prague Prague http://www.cecolo.com/ 2016-03-14 21:55:29
TTC TELEPORT DC1 Prague http://www.ttc-teleport.cz/ 2016-03-14 21:17:35
TTC TELEPORT DC2 Prague http://www.ttc-teleport.cz/ 2018-06-19 13:56:59

Whois Record

as-block AS47193 - AS47271

as-block
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
2025-10-23T14:06:40Z
last-modified
2025-10-23T14:06:40Z
source
RIPE

aut-num AS47232

aut-num
as-name
ISPAlliance
org
ORG-GSa22-RIPE
import
from AS21430 accept ANY
from AS29208 accept ANY
from AS197296 accept ANY
from AS56624 accept ANY
from AS49767 accept ANY
from AS39392 accept ANY
from AS35046 accept ANY
from AS200059 accept ANY
import-via
AS6777 from AS-ANY accept ANY
export
to AS29208 announce AS-ISPALLIANCE-CZ
to AS197296 announce ANY
to AS56624 announce ANY
to AS49767 announce ANY
to AS39392 announce ANY
to AS35046 announce ANY
to AS200059 announce ANY
export-via
AS6777 to AS-ANY announce AS-ISPALLIANCE-CZ
remarks
This ASN is used for residential broadband ISPs services.
----------------------------------------------------------------------
TRANSIT IMPORT
EXCHANGE POINTS IMPORT
CUSTOMERS IMPORT
----------------------------------------------------------------------
----------------------------------------------------------------------
TRANSIT EXPORT
EXCHANGE POINTS EXPORT
CUSTOMERS EXPORT
----------------------------------------------------------------------
mp-import
afi any.unicast from AS47232:AS-TRANSIT accept ANY
afi any.unicast from AS47232:AS-IX accept ANY
afi any.unicast from AS47232:AS-CUSTOMERS accept PeerAS
mp-export
afi any.unicast to AS47232:AS-TRANSIT announce AS-ISPALLIANCE-CZ
afi any.unicast to AS47232:AS-IX announce AS-ISPALLIANCE-CZ
afi any.unicast to AS47232:AS-CUSTOMERS announce ANY
admin-c
GS5801-RIPE
tech-c
GS5801-RIPE
status
ASSIGNED
notify
mnt-by
RIPE-NCC-END-MNT
MNT-GRAPESC
created
2008-05-21T13:49:01Z
last-modified
2026-05-29T05:07:46Z
source
RIPE

organisation ORG-GSa22-RIPE

organisation
ORG-GSa22-RIPE
org-name
ISP Alliance a.s.
country
CZ
reg-nr
28205812
org-type
LIR
address
Kukanova 2262
43003
Chomutov
CZECH REPUBLIC
phone
+420724612176
fax-no
+420415210805
e-mail
admin-c
LR2038-RIPE
abuse-c
IA3261-RIPE
mnt-ref
RIPE-NCC-HM-MNT
MNT-GRAPESC
mnt-by
RIPE-NCC-HM-MNT
MNT-GRAPESC
created
2008-04-22T12:13:14Z
last-modified
2026-05-13T07:32:19Z
source
RIPE

role GRAPESC

role
GRAPESC
address
Karlovo nám?stí 559/28
120 00 Praha 2
Czech Republic
phone
+420800911911
e-mail
admin-c
LR2038-RIPE
tech-c
LR2038-RIPE
abuse-mailbox
nic-hdl
GS5801-RIPE
mnt-by
MNT-GRAPESC
notify
created
2008-05-14T08:34:47Z
last-modified
2023-07-18T16:39:57Z
source
RIPE

as-block:       AS47193 - AS47271
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:        2025-10-23T14:06:40Z
last-modified:  2025-10-23T14:06:40Z
source:         RIPE



aut-num:        AS47232
as-name:        ISPAlliance
org:            ORG-GSa22-RIPE
import:         from AS21430 accept ANY
import:         from AS29208 accept ANY
import:         from AS197296 accept ANY
import:         from AS56624 accept ANY
import:         from AS49767 accept ANY
import:         from AS39392 accept ANY
import:         from AS35046 accept ANY
import:         from AS200059 accept ANY
import-via:     AS6777 from AS-ANY accept ANY
export:         to AS29208 announce AS-ISPALLIANCE-CZ
export:         to AS197296 announce ANY
export:         to AS56624 announce ANY
export:         to AS49767 announce ANY
export:         to AS39392 announce ANY
export:         to AS35046 announce ANY
export:         to AS200059 announce ANY
export-via:     AS6777 to AS-ANY announce AS-ISPALLIANCE-CZ
remarks:        This ASN is used for residential broadband ISPs services.
remarks:        ----------------------------------------------------------------------
remarks:        TRANSIT IMPORT
mp-import:      afi any.unicast from AS47232:AS-TRANSIT accept ANY
remarks:
remarks:        EXCHANGE POINTS IMPORT
mp-import:      afi any.unicast from AS47232:AS-IX accept ANY
remarks:
remarks:        CUSTOMERS IMPORT
mp-import:      afi any.unicast from AS47232:AS-CUSTOMERS accept PeerAS
remarks:        ----------------------------------------------------------------------
remarks:
remarks:        ----------------------------------------------------------------------
remarks:        TRANSIT EXPORT
mp-export:      afi any.unicast to AS47232:AS-TRANSIT announce AS-ISPALLIANCE-CZ
remarks:
remarks:        EXCHANGE POINTS EXPORT
mp-export:      afi any.unicast to AS47232:AS-IX announce AS-ISPALLIANCE-CZ
remarks:
remarks:        CUSTOMERS EXPORT
mp-export:      afi any.unicast to AS47232:AS-CUSTOMERS announce ANY
remarks:        ----------------------------------------------------------------------
remarks:
admin-c:        GS5801-RIPE
tech-c:         GS5801-RIPE
status:         ASSIGNED
notify:         [email protected]
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         MNT-GRAPESC
created:        2008-05-21T13:49:01Z
last-modified:  2026-05-29T05:07:46Z
source:         RIPE

organisation:   ORG-GSa22-RIPE
org-name:       ISP Alliance a.s.
country:        CZ
reg-nr:         28205812
org-type:       LIR
address:        Kukanova 2262
address:        43003
address:        Chomutov
address:        CZECH REPUBLIC
phone:          +420724612176
fax-no:         +420415210805
e-mail:         [email protected]
admin-c:        LR2038-RIPE
abuse-c:        IA3261-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        MNT-GRAPESC
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         MNT-GRAPESC
created:        2008-04-22T12:13:14Z
last-modified:  2026-05-13T07:32:19Z
source:         RIPE

role:           GRAPESC
address:        Karlovo nám?stí 559/28
address:        120 00 Praha 2
address:        Czech Republic
phone:          +420800911911
e-mail:         [email protected]
admin-c:        LR2038-RIPE
tech-c:         LR2038-RIPE
abuse-mailbox:  [email protected]
nic-hdl:        GS5801-RIPE
mnt-by:         MNT-GRAPESC
notify:         [email protected]
created:        2008-05-14T08:34:47Z
last-modified:  2023-07-18T16:39:57Z
source:         RIPE