AS Number
AS Name
Org Name
OptoNet Communication, spol. s.r.o.






AS43542 Looking Glass






IPv6 NUMs(/64)


9,216 IPv4 Addresses
CIDR Description IP Num
ROA Signed and Valid IRR Valid
OptoNet Communication, spol. s.r.o. 8192
ROA Signed and Valid IRR Valid
OptoNet Communication, spol. s.r.o. 1024
CIDR Description IP NUMs(prefix /64)
ROA Signed and Valid IRR Valid
OptoNet Communication, spol. s.r.o. 4294967296
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS1239 SPRINTLINK - Sprint, US United States 18,170,112 249,109,544,960 IPv4 IPv4 IPv6 IPv6
AS8218 NEO-ASN - Zayo Infrastructure France SA, FR France 53,760 8,590,721,024 IPv4 IPv4 IPv6 IPv6
AS28972 MSOFT-AS - M-SOFT, spol. s r.o., CZ Czech 13,312 68,719,476,736 IPv4 IPv4
AS29049 Delta-Telecom-AS - Delta Telecom Ltd, AZ Azerbaijan 73,216 1,310,720 IPv4 IPv4
AS39120 CONVERGENZE-AS - Convergenze S.p.A., IT Italy 35,072 12,884,901,888 IPv4 IPv4
AS57463 NetIX - NetIX Communications JSC, BG Bulgaria 256 0 IPv4 IPv4 IPv6 IPv6
AS174 COGENT-174 - Cogent Communications, US United States 27,248,896 228,845,617,152 IPv4 IPv4 IPv6 IPv6
AS6881 NIXCZ - NIX.CZ z.s.p.o., CZ Czech 2,560 4,294,967,296 IPv4 IPv4
AS16019 VODAFONE-CZ-AS - Vodafone Czech Republic a.s., CZ Czech 1,209,088 287,762,808,832 IPv4 IPv4 IPv6 IPv6
AS24482 SGGS-AS-AP - SG.GS, SG Singapore 23,296 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS36236 NETACTUATE - NetActuate, Inc, US United States 57,600 1,923,940,352 IPv4 IPv4 IPv6 IPv6
AS60501 SIRIUSTEC-IT - Sirius Technology SRL, IT Italy 14,592 73,014,444,032 IPv4 IPv4 IPv6 IPv6
AS61573 IP2TEL SERVICOS DE COMUNICACAO MULTIMIDIA, BR Brazil 1,024 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS6939 HURRICANE - Hurricane Electric LLC, US United States 485,888 282,631,404,847,104 IPv4 IPv4 IPv6 IPv6
AS43070 JAW-AS - s.r.o., CZ Czech 9,728 12,884,901,888 IPv4 IPv4
AS61568 ALOO TELECOM - FSF TECNOLOGIA SA, BR Brazil 12,544 4,294,967,296 IPv4 IPv4
AS212483 level86 - LEVEL EIGHTY-SIX COMMUNICATIONS LTD, GB United Kingdom 0 1,769,472 IPv4 IPv4 IPv6 IPv6
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS57288 ASSTAMPI - StaMPi, spol. s r.o., CZ Czech 2,048 65,536 IPv4 IPv4 IPv6 IPv6
AS202979 ngaservices - NGA Services, spol. s r.o., CZ Czech 1,024 34,359,738,368 IPv4 IPv4 IPv6 IPv6
AS207945 CNI - CNI Group s.r.o., CZ Czech 2,304 34,359,738,368 IPv4 IPv4 IPv6 IPv6
AS44104 LCJ-AS - LCJ Invest, a.s., CZ Czech 256 0 IPv4 IPv4
IP Address Domain NUMs Domains 1 14 1 1 1 1 1 1 2 1
as-block:       AS42961 - AS45055
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:        2021-08-19T06:50:17Z
last-modified:  2021-08-19T06:50:17Z
source:         RIPE

aut-num:        AS43542
as-name:        OptoNet-AS
org:            ORG-OCLS3-RIPE
remarks:        ======== TRANSIT UPSTREAM ========
remarks:        -- VODAFONE-CZ --
import:         from AS16019 accept any
export:         to AS16019 announce AS-OPTONET-TRANSIT
remarks:        -- COGENT --
import:         from AS174 accept any
export:         to AS174 announce AS-OPTONET-TRANSIT
remarks:        ======== IXs peers ========
remarks:        -- NIX.CZ ROUTESERVERS --
import:         from AS47200 accept ANY
export:         to AS47200 announce AS-OPTONET-TRANSIT
remarks:        ======== TRANSIT CUSTOMERS ========
remarks:        -- Kraj Vysocina --
import:         from AS48091 accept AS48091
export:         to AS48091 announce any
remarks:        -- LCJ s.r.o. --
import:         from AS44104 accept AS44104
export:         to AS44104 announce any
remarks:        -- StaMPi, spol. s r.o. --
import:         from AS57288 accept AS57288
export:         to AS57288 announce any
remarks:        -- NGA Services, spol. s r.o. --
import:         from AS202979 accept AS202979 AS203365
export:         to AS202979 announce any
remarks:        -- CNI Group s.r.o. --
import:         from AS207945 accept AS207945
export:         to AS207945 announce any
admin-c:        TJ1042-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
tech-c:         TJ1042-RIPE
mnt-by:         MNT-OPTONET
created:        2007-08-20T08:25:37Z
last-modified:  2022-06-27T06:18:32Z
source:         RIPE

organisation:   ORG-OCLS3-RIPE
org-name:       OptoNet Communication, spol. s.r.o.
country:        CZ
org-type:       LIR
address:        Cerveny Kriz 250
address:        56802
address:        Jihlava
address:        CZECH REPUBLIC
phone:          +420564040152
fax-no:         +420564040134
admin-c:        TJ1042-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        MNT-OPTONET
mnt-ref:        MNT-OPTONET_JT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         MNT-OPTONET
abuse-c:        AOC17-RIPE
created:        2006-09-25T15:28:01Z
last-modified:  2022-02-07T09:33:09Z
source:         RIPE

person:         Tichy Josef
address:        OptoNet Communication, spol. s r.o.
address:        Cerveny Kriz 250
address:        568 02 Jihlava
address:        Czech republic
phone:          +420564040133
nic-hdl:        TJ1042-RIPE
mnt-by:         MNT-OPTONET_JT
created:        2007-08-06T07:09:45Z
last-modified:  2017-10-30T21:56:13Z
source:         RIPE