AS Number
AS42908
AS Name
CZ-NORDICTELECOMREGIONAL
Org Name
O2 Czech Republic, a.s.
Country / Region
Czech
Registry

ripe

RegDate

Updated

2026-06-23T05:12:23Z

AS42908 Looking Glass
IPv4Prefixes

35

IPv6Prefixes

9

IPv4 NUMs

183,296

IPv6 NUMs(/64)

158,913,789,952

CIDR Description IP Num
5.102.48.0/20
IRR Valid
O2 Czech Republic, a.s. 4096
31.10.56.0/21
IRR Valid
O2 Czech Republic, a.s. 2048
45.159.116.0/22
IRR Valid
O2 Czech Republic, a.s. 1024
46.183.56.0/21
IRR Valid
O2 Czech Republic, a.s. 2048
46.231.72.0/21
IRR InValid
O2 Czech Republic, a.s. 2048
77.95.192.0/21
IRR Valid
O2 Czech Republic, a.s. 2048
78.136.128.0/18
IRR Valid
O2 Czech Republic, a.s. 16384
80.78.136.0/22
IRR Valid
O2 Czech Republic, a.s. 1024
80.79.0.0/22
IRR Valid
O2 Czech Republic, a.s. 1024
80.87.176.0/20
IRR InValid
O2 Czech Republic, a.s. 4096
80.90.128.0/20
IRR InValid
O2 Czech Republic, a.s. 4096
80.243.236.0/22
IRR InValid
O2 Czech Republic, a.s. 1024
80.251.240.0/20
IRR Valid
O2 Czech Republic, a.s. 4096
88.81.64.0/19
IRR InValid
O2 Czech Republic, a.s. 8192
91.187.32.0/19
IRR InValid
O2 Czech Republic, a.s. 8192
92.61.80.0/20
IRR InValid
O2 Czech Republic, a.s. 4096
93.92.48.0/21
IRR Valid
O2 Czech Republic, a.s. 2048
93.93.32.0/21
IRR Valid
O2 Czech Republic, a.s. 2048
94.241.64.0/18
IRR Valid
O2 Czech Republic, a.s. 16384
109.108.96.0/19
IRR Valid
O2 Czech Republic, a.s. 8192
176.102.128.0/19
IRR InValid
O2 Czech Republic, a.s. 8192
178.17.80.0/20
IRR InValid
CZ-NORDICTELECOMREGIONAL-20100318 4096
185.78.12.0/22
IRR InValid
O2 Czech Republic, a.s. 1024
185.82.236.0/22
IRR InValid
O2 Czech Republic, a.s. 1024
185.108.60.0/22
IRR Valid
O2 Czech Republic, a.s. 1024
185.157.240.0/22
IRR Valid
O2 Czech Republic, a.s. 1024
188.119.96.0/22
IRR Valid
O2 Czech Republic, a.s. 1024
193.42.128.0/22
IRR Valid
O2 Czech Republic, a.s. 1024
193.107.252.0/22
IRR Valid
O2 Czech Republic, a.s. 1024
213.19.0.0/17
IRR InValid
O2 Czech Republic, a.s. 32768
213.155.32.0/19
IRR InValid
O2 Czech Republic, a.s. 8192
213.250.192.0/18
IRR InValid
O2 Czech Republic, a.s. 16384
217.170.96.0/20
IRR InValid
O2 Czech Republic, a.s. 4096
217.196.112.0/20
IRR InValid
O2 Czech Republic, a.s. 4096
217.197.144.0/20
IRR InValid
O2 Czech Republic, a.s. 4096
CIDR Description IP NUMs(prefix /64)
2a00:e4c0::/32
IRR Valid
O2 Czech Republic, a.s. 4294967296
2a01:9f40::/29
IRR Valid
O2 Czech Republic, a.s. 34359738368
2a02:2428::/32
IRR Valid
O2 Czech Republic, a.s. 4294967296
2a02:2588::/29
IRR InValid
O2 Czech Republic, a.s. 34359738368
2a03:1600::/32
IRR InValid
O2 Czech Republic, a.s. 4294967296
2a03:7a00::/32
IRR Valid
O2 Czech Republic, a.s. 4294967296
2a03:a820::/32
IRR Valid
O2 Czech Republic, a.s. 4294967296
2a07:cc80::/29
IRR Valid
O2 Czech Republic, a.s. 34359738368
2a0c:8b40::/29
IRR Valid
O2 Czech Republic, a.s. 34359738368
AS Description Country / Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS5610 O2-CZECH-REPUBLIC - O2 Czech Republic, a.s., CZ Czech 1,542,400 47,244,705,792 IPv4 IPv4 IPv6 IPv6
AS Description Country / Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS33442 ZEBRA-TECHNOLOGIES-BGP-AS-NUMBER - Zebra Technologies Corporation, US United States 131,328 131,072 IPv4 IPv4
AS202643 NETSERV-AS - NetSERV, s.r.o., CZ Czech 256 34,359,738,368 IPv4 IPv4 IPv6 IPv6

Whois Record

as-block AS42383 - AS42953

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
2026-06-23T05:12:23Z
last-modified
2026-06-23T05:12:23Z
source
RIPE

aut-num AS42908

aut-num
admin-c
VAKO1-RIPE
tech-c
CZO2-RIPE
notify
ripe@nordictelecom.cz
descr
ORIGINAL AS CZ-NORDICTELECOMREGIONAL
as-name
CZ-NORDICTELECOMREGIONAL
org
ORG-STaN1-RIPE
remarks
# Peering (Exchange)
# Transit O2 NIX CDT
# DAT
# OXID
# Fortech
# Mitranet
# Baja
# Zenit
# Omegatech
# KeyNet
# FofrNet
# Customers
import
from AS6881 accept ANY
from AS61195 accept ANY
from AS5610 accept ANY
from AS8251 accept ANY
from AS25512 accept ANY
from AS35214 accept AS35214
from AS203385 accept AS203385
from AS202643 accept AS202643
from AS33442 accept AS33442
export
to AS6881 announce AS-NORDICTELECOM
to AS61195 announce AS-NORDICTELECOM
to AS5610 announce AS-NORDICTELECOM
to AS8251 announce AS-NORDICTELECOM
to AS25512 announce AS-NORDICTELECOM
to AS35214 announce ANY
to AS203385 announce ANY
to AS202643 announce ANY
to AS33442 announce ANY
status
ASSIGNED
mnt-by
RIPE-NCC-END-MNT
AS5610-MTN
created
2007-05-09T09:21:42Z
last-modified
2025-04-01T07:33:41Z
source
RIPE

organisation ORG-STaN1-RIPE

organisation
ORG-STaN1-RIPE
org-name
O2 Czech Republic, a.s.
country
CZ
reg-nr
60193336
org-type
LIR
address
Za Brumlovkou 266/2
140 22
Praha 4 - Michle
CZECH REPUBLIC
phone
+420 2 71466184
fax-no
+420 2 71464414
e-mail
marek.vogel@o2.cz
admin-c
VAKO1-RIPE
MV96-RIPE
HVJI1-RIPE
tech-c
CZO2-RIPE
abuse-c
AR14410-RIPE
mnt-ref
RIPE-NCC-HM-MNT
AS5610-MTN
mnt-by
RIPE-NCC-HM-MNT
AS5610-MTN
created
2004-04-17T11:04:17Z
last-modified
2026-05-13T07:30:10Z
source
RIPE

role 5610-Tech-and-Admin

role
5610-Tech-and-Admin
address
Za Brumlovkou 266/2
Praha 4 - Michle, PSC 140 22
e-mail
router@o2.cz
nic-hdl
CZO2-RIPE
admin-c
VAKO1-RIPE
MV96-RIPE
HVJI1-RIPE
tech-c
VAKO1-RIPE
HVJI1-RIPE
abuse-mailbox
abuse@o2.cz
org
ORG-STaN1-RIPE
mnt-by
AS5610-MTN
created
2016-02-18T09:58:30Z
last-modified
2018-04-20T10:44:21Z
source
RIPE

person Vaclav Kordula

person
Vaclav Kordula
address
O2 Czech Republic, a.s.
Za Brumlovkou 266/2
Praha 4 - Michle, PS? 140 22
Czech Republic
phone
+420 2 714668845
e-mail
vaclav.kordula@o2.cz
nic-hdl
VAKO1-RIPE
notify
vaclav.kordula@o2.cz
mnt-by
AS5610-MTN
created
1970-01-01T00:00:00Z
last-modified
2016-02-12T13:32:30Z
source
RIPE

as-block:       AS42383 - AS42953
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:        2026-06-23T05:12:23Z
last-modified:  2026-06-23T05:12:23Z
source:         RIPE



aut-num:        AS42908
admin-c:        VAKO1-RIPE
tech-c:         CZO2-RIPE
notify:         ripe@nordictelecom.cz
descr:          ORIGINAL AS CZ-NORDICTELECOMREGIONAL
as-name:        CZ-NORDICTELECOMREGIONAL
org:            ORG-STaN1-RIPE
remarks:        # Peering (Exchange)
import:         from AS6881 accept ANY
export:         to AS6881 announce AS-NORDICTELECOM
import:         from AS61195 accept ANY
export:         to AS61195 announce AS-NORDICTELECOM
remarks:        # Transit O2 NIX CDT
import:         from AS5610 accept ANY
export:         to AS5610 announce AS-NORDICTELECOM
import:         from AS8251 accept ANY
export:         to AS8251 announce AS-NORDICTELECOM
import:         from AS25512 accept ANY
export:         to AS25512 announce AS-NORDICTELECOM
remarks:        # DAT
remarks:        # OXID
import:         from AS35214 accept AS35214
export:         to AS35214 announce ANY
remarks:        # Fortech
remarks:        # Mitranet
remarks:        # Baja
remarks:        # Zenit
remarks:        # Omegatech
remarks:        # KeyNet
remarks:        # FofrNet
remarks:        # Customers
import:         from AS203385 accept AS203385
export:         to AS203385 announce ANY
import:         from AS202643 accept AS202643
export:         to AS202643 announce ANY
import:         from AS33442 accept AS33442
export:         to AS33442 announce ANY
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         AS5610-MTN
created:        2007-05-09T09:21:42Z
last-modified:  2025-04-01T07:33:41Z
source:         RIPE

organisation:   ORG-STaN1-RIPE
org-name:       O2 Czech Republic, a.s.
country:        CZ
reg-nr:         60193336
org-type:       LIR
address:        Za Brumlovkou 266/2
address:        140 22
address:        Praha 4 - Michle
address:        CZECH REPUBLIC
phone:          +420 2 71466184
fax-no:         +420 2 71464414
e-mail:         marek.vogel@o2.cz
admin-c:        VAKO1-RIPE
admin-c:        MV96-RIPE
admin-c:        HVJI1-RIPE
tech-c:         CZO2-RIPE
abuse-c:        AR14410-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        AS5610-MTN
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         AS5610-MTN
created:        2004-04-17T11:04:17Z
last-modified:  2026-05-13T07:30:10Z
source:         RIPE

role:           5610-Tech-and-Admin
address:        Za Brumlovkou 266/2
address:        Praha 4 - Michle, PSC 140 22
e-mail:         router@o2.cz
nic-hdl:        CZO2-RIPE
admin-c:        VAKO1-RIPE
admin-c:        MV96-RIPE
admin-c:        HVJI1-RIPE
tech-c:         VAKO1-RIPE
tech-c:         HVJI1-RIPE
abuse-mailbox:  abuse@o2.cz
org:            ORG-STaN1-RIPE
mnt-by:         AS5610-MTN
created:        2016-02-18T09:58:30Z
last-modified:  2018-04-20T10:44:21Z
source:         RIPE

person:         Vaclav Kordula
address:        O2 Czech Republic, a.s.
address:        Za Brumlovkou 266/2
address:        Praha 4 - Michle, PS? 140 22
address:        Czech Republic
phone:          +420 2 714668845
e-mail:         vaclav.kordula@o2.cz
nic-hdl:        VAKO1-RIPE
notify:         vaclav.kordula@o2.cz
mnt-by:         AS5610-MTN
created:        1970-01-01T00:00:00Z
last-modified:  2016-02-12T13:32:30Z
source:         RIPE