AS16246 O2 Czech Republic, a.s.

The website screenshot for http://www.nej.cz

O2 Czech Republic, a.s.

AS Number 16246
Website http://www.nej.cz

Registered on: 21 Oct 2003 (22 years old)
Registered to: cz.cznet (ripe); [Transfer History]

Network status: Active, Allocated under RIPE

Network type: Eyeball

Prefixes Originated: 13 IPv4, 2 IPv6

Upstreams

AS5610 - O2 Czech Republic, a.s.
AS62178 - MASTER IT Technologies, a.s.

Rankings

#13 for AS Cone in Czech Republic

#11 for Estimated Eyeballs in Czech Republic

#67 for Unique Domains in Czech Republic

#62 for Known Peers in Czech Republic

#11 for Originated IPv4 Space in Czech Republic

#18 for Originated IPv6 Space in Czech Republic

Tags:

	Prefix	Description
	77.87.232.0/21	CATR
	78.108.152.0/21	O2 Czech Republic, a.s.
	82.150.160.0/19	O2 Czech Republic, a.s.
	86.63.192.0/19	O2 Czech Republic, a.s.
	91.197.116.0/22	CATR
	92.240.160.0/19	O2 Czech Republic, a.s.
	94.74.192.0/18	O2 Czech Republic, a.s.
	95.143.128.0/20	O2 Czech Republic, a.s.
	176.98.96.0/20	O2 Czech Republic, a.s.
	178.17.96.0/20	-
	185.15.252.0/22	O2 Czech Republic, a.s.
	188.175.0.0/16	O2 Czech Republic, a.s.
	213.180.32.0/19	O2 Czech Republic, a.s.
	2a02:350::/29	O2 Czech Republic, a.s.
	2a03:b4c0::/32	O2 Czech Republic, a.s.

Peers: 16

Upstreams: 2

Downstreams: 15 (Cone: 31)

Network Policy

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Chart Display Options

Display links using non straight lines

How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS5610	O2 Czech Republic, a.s.	✔	✔
	AS62178	MASTER IT Technologies, a.s.	✔	✘

Peers

ASN	Description	IPv4	IPv6
AS5610	O2 Czech Republic, a.s.	✔	✔
AS12570	O2 Czech Republic, a.s.	✔	✔
AS62178	MASTER IT Technologies, a.s.	✔	✔
AS41046	O2 Czech Republic, a.s.	✔	✔
AS31246	O2 Czech Republic, a.s.	✔	✔
AS29321	O2 Czech Republic, a.s.	✔	✔
AS212315	Frantisek Toman	✔	✔
AS49767	O2 Czech Republic, a.s.	✔	✔
AS44070	O2 Czech Republic, a.s.	✔	✔
AS197197	CETIN a.s.	✔	✔
AS202657	Pavel Jochim	✔	✔
AS50784	Intraweb servis s.r.o.	✔	✔
AS207015	Position s.r.o.	✔	✔
AS47681	O2 Czech Republic, a.s.	✔	✘
AS39736	ICT Support, s.r.o.	✔	✔
AS41453	SITEL spol. s r.o.	✔	✘

Downstreams

ASN	Description	IPv4	IPv6
AS12570	O2 Czech Republic, a.s.	✔	✔
AS62178	MASTER IT Technologies, a.s.	✔	✔
AS41046	O2 Czech Republic, a.s.	✔	✔
AS31246	O2 Czech Republic, a.s.	✔	✔
AS29321	O2 Czech Republic, a.s.	✔	✔
AS212315	Frantisek Toman	✔	✔
AS49767	O2 Czech Republic, a.s.	✔	✔
AS44070	O2 Czech Republic, a.s.	✔	✔
AS197197	CETIN a.s.	✔	✔
AS202657	Pavel Jochim	✔	✔
AS50784	Intraweb servis s.r.o.	✔	✔
AS207015	Position s.r.o.	✔	✔
AS39736	ICT Support, s.r.o.	✔	✔
AS47681	O2 Czech Republic, a.s.	✔	✘
AS41453	SITEL spol. s r.o.	✔	✘

aut-num:        AS16246
org:            ORG-STaN1-RIPE
admin-c:        DUMY-RIPE
tech-c:         DUMY-RIPE
as-name:        AS16246
descr:          NEJ.cz s.r.o
remarks:        ---- UPSTREAM ----
import:         from AS39392 accept ANY
export:         to AS39392 announce AS-RIOMEDIA-TRANSIT
remarks:        ---- TRANSIT AS ----
import:         from AS47681 accept AS47681
export:         to AS47681 announce ANY
import:         from AS60086 accept AS60086
export:         to AS60086 announce ANY
import:         from AS48474 accept AS48474
export:         to AS48474 announce ANY
import:         from AS196849 accept AS196849
export:         to AS196849 announce ANY
import:         from AS62405 accept AS62405
export:         to AS62405 announce ANY
import:         from AS207015 accept AS207015
export:         to AS207015 announce ANY
import:         from AS206270 accept AS206270
export:         to AS206270 announce ANY
remarks:        ---- NIX.CZ ----
export:         to AS6881 announce AS-RIOMEDIA-NIXCZ
import:         from AS6881 accept AS6881
export:         to AS6881 announce AS-RIOMEDIA-NIXCZ
import:         from AS6881 accept AS6881
export:         to AS39906 announce AS-RIOMEDIA-NIXCZ
import:         from AS39906 accept AS39906
export:         to AS2819 announce AS-RIOMEDIA-NIXCZ
import:         from AS2819 accept AS2819
export:         to AS2819 announce AS-RIOMEDIA-NIXCZ
import:         from AS2819 accept AS2819
export:         to AS12570 announce AS-RIOMEDIA-NIXCZ
import:         from AS12570 accept AS12570
export:         to AS43708 announce AS-RIOMEDIA-NIXCZ
import:         from AS43708 accept AS43708
export:         to AS39392 announce AS-RIOMEDIA-NIXCZ
import:         from AS39392 accept AS39392
export:         to AS39392 announce AS-RIOMEDIA-NIXCZ
import:         from AS39392 accept AS39392
export:         to AS33883 announce AS-RIOMEDIA-NIXCZ
import:         from AS33883 accept AS33883
export:         to AS28851 announce AS-RIOMEDIA-NIXCZ
import:         from AS28851 accept AS28851
export:         to AS31246 announce AS-RIOMEDIA-NIXCZ
import:         from AS31246 accept AS31246
export:         to AS31246 announce AS-RIOMEDIA-NIXCZ
import:         from AS31246 accept AS31246
export:         to AS25192 announce AS-RIOMEDIA-NIXCZ
import:         from AS25192 accept AS25192
export:         to AS25192 announce AS-RIOMEDIA-NIXCZ
import:         from AS25192 accept AS25192
export:         to AS25248 announce AS-RIOMEDIA-NIXCZ
import:         from AS25248 accept AS25248
export:         to AS25248 announce AS-RIOMEDIA-NIXCZ
import:         from AS25248 accept AS25248
export:         to AS39235 announce AS-RIOMEDIA-NIXCZ
import:         from AS39235 accept AS39235
export:         to AS39235 announce AS-RIOMEDIA-NIXCZ
import:         from AS39235 accept AS39235
export:         to AS42000 announce AS-RIOMEDIA-NIXCZ
import:         from AS42000 accept AS42000
export:         to AS42000 announce AS-RIOMEDIA-NIXCZ
import:         from AS42000 accept AS42000
export:         to AS35592 announce AS-RIOMEDIA-NIXCZ
import:         from AS35592 accept AS35592
export:         to AS35592 announce AS-RIOMEDIA-NIXCZ
import:         from AS35592 accept AS35592
export:         to AS29321 announce AS-RIOMEDIA-NIXCZ
import:         from AS29321 accept AS29321
export:         to AS29321 announce AS-RIOMEDIA-NIXCZ
import:         from AS29321 accept AS29321
export:         to AS20723 announce AS-RIOMEDIA-NIXCZ
import:         from AS20723 accept AS20723
export:         to AS20723 announce AS-RIOMEDIA-NIXCZ
import:         from AS20723 accept AS20723
export:         to AS28972 announce AS-RIOMEDIA-NIXCZ
import:         from AS28972 accept AS28972
export:         to AS35236 announce AS-RIOMEDIA-NIXCZ
import:         from AS35236 accept AS35236
export:         to AS38952 announce AS-RIOMEDIA-NIXCZ
import:         from AS38952 accept AS38952
export:         to AS38952 announce AS-RIOMEDIA-NIXCZ
import:         from AS38952 accept AS38952
export:         to AS2852 announce AS-RIOMEDIA-NIXCZ
import:         from AS2852 accept AS2852
export:         to AS2852 announce AS-RIOMEDIA-NIXCZ
import:         from AS2852 accept AS2852
export:         to AS25512 announce AS-RIOMEDIA-NIXCZ
import:         from AS25512 accept AS25512
export:         to AS25512 announce AS-RIOMEDIA-NIXCZ
import:         from AS25512 accept AS25512
export:         to AS47232 announce AS-RIOMEDIA-NIXCZ
import:         from AS47232 accept AS47232
export:         to AS15935 announce AS-RIOMEDIA-NIXCZ
import:         from AS15935 accept AS15935
export:         to AS15935 announce AS-RIOMEDIA-NIXCZ
import:         from AS15935 accept AS15935
export:         to AS24806 announce AS-RIOMEDIA-NIXCZ
import:         from AS24806 accept AS24806
export:         to AS24806 announce AS-RIOMEDIA-NIXCZ
import:         from AS24806 accept AS24806
export:         to AS25424 announce AS-RIOMEDIA-NIXCZ
import:         from AS25424 accept AS25424
export:         to AS9080 announce AS-RIOMEDIA-NIXCZ
import:         from AS9080 accept AS9080
export:         to AS9080 announce AS-RIOMEDIA-NIXCZ
import:         from AS9080 accept AS9080
export:         to AS34315 announce AS-RIOMEDIA-NIXCZ
import:         from AS34315 accept AS34315
export:         to AS34080 announce AS-RIOMEDIA-NIXCZ
import:         from AS34080 accept AS34080
export:         to AS34080 announce AS-RIOMEDIA-NIXCZ
import:         from AS34080 accept AS34080
export:         to AS42908 announce AS-RIOMEDIA-NIXCZ
import:         from AS42908 accept AS42908
export:         to AS42908 announce AS-RIOMEDIA-NIXCZ
import:         from AS42908 accept AS42908
export:         to AS43413 announce AS-RIOMEDIA-NIXCZ
import:         from AS43413 accept AS43413
export:         to AS43413 announce AS-RIOMEDIA-NIXCZ
import:         from AS43413 accept AS43413
export:         to AS8251 announce AS-RIOMEDIA-NIXCZ
import:         from AS8251 accept AS8251
export:         to AS35214 announce AS-RIOMEDIA-NIXCZ
import:         from AS35214 accept AS35214
export:         to AS43037 announce AS-RIOMEDIA-NIXCZ
import:         from AS43037 accept AS43037
export:         to AS43037 announce AS-RIOMEDIA-NIXCZ
import:         from AS43037 accept AS43037
export:         to AS5407 announce AS-RIOMEDIA-NIXCZ
import:         from AS5407 accept AS5407
export:         to AS25036 announce AS-RIOMEDIA-NIXCZ
import:         from AS25036 accept AS25036
export:         to AS25036 announce AS-RIOMEDIA-NIXCZ
import:         from AS25036 accept AS25036
export:         to AS38949 announce AS-RIOMEDIA-NIXCZ
import:         from AS38949 accept AS38949
export:         to AS29583 announce AS-RIOMEDIA-NIXCZ
import:         from AS29583 accept AS29583
export:         to AS41711 announce AS-RIOMEDIA-NIXCZ
import:         from AS41711 accept AS41711
export:         to AS41711 announce AS-RIOMEDIA-NIXCZ
import:         from AS41711 accept AS41711
export:         to AS43541 announce AS-RIOMEDIA-NIXCZ
import:         from AS43541 accept AS43541
export:         to AS43541 announce AS-RIOMEDIA-NIXCZ
import:         from AS43541 accept AS43541
export:         to AS34692 announce AS-RIOMEDIA-NIXCZ
import:         from AS34692 accept AS34692
export:         to AS39817 announce AS-RIOMEDIA-NIXCZ
import:         from AS39817 accept AS39817
export:         to AS41088 announce AS-RIOMEDIA-NIXCZ
import:         from AS41088 accept AS41088
export:         to AS39790 announce AS-RIOMEDIA-NIXCZ
import:         from AS39790 accept AS39790
export:         to AS39790 announce AS-RIOMEDIA-NIXCZ
import:         from AS39790 accept AS39790
export:         to AS43070 announce AS-RIOMEDIA-NIXCZ
import:         from AS43070 accept AS43070
export:         to AS5610 announce AS-RIOMEDIA-NIXCZ
import:         from AS5610 accept AS5610
export:         to AS5610 announce AS-RIOMEDIA-NIXCZ
import:         from AS5610 accept AS5610
export:         to AS47868 announce AS-RIOMEDIA-NIXCZ
import:         from AS47868 accept AS47868
export:         to AS29086 announce AS-RIOMEDIA-NIXCZ
import:         from AS29086 accept AS29086
export:         to AS15685 announce AS-RIOMEDIA-NIXCZ
import:         from AS15685 accept AS15685
export:         to AS15685 announce AS-RIOMEDIA-NIXCZ
import:         from AS15685 accept AS15685
export:         to AS9002 announce AS-RIOMEDIA-NIXCZ
import:         from AS9002 accept AS9002
export:         to AS47200 announce AS-RIOMEDIA-NIXCZ
import:         from AS47200 accept AS47200
export:         to AS47200 announce AS-RIOMEDIA-NIXCZ
import:         from AS47200 accept AS47200
export:         to AS8251 announce AS-RIOMEDIA-NIXCZ
import:         from AS8251 accept AS8251
export:         to AS13036 announce AS-RIOMEDIA-NIXCZ
import:         from AS13036 accept AS13036
export:         to AS13036 announce AS-RIOMEDIA-NIXCZ
import:         from AS13036 accept AS13036
export:         to AS15598 announce AS-RIOMEDIA-NIXCZ
import:         from AS15598 accept AS15598
export:         to AS39791 announce AS-RIOMEDIA-NIXCZ
import:         from AS39791 accept AS39791
export:         to AS25234 announce AS-RIOMEDIA-NIXCZ
import:         from AS25234 accept AS25234
export:         to AS25234 announce AS-RIOMEDIA-NIXCZ
import:         from AS25234 accept AS25234
export:         to AS6830 announce AS-RIOMEDIA-NIXCZ
import:         from AS6830 accept AS6830
export:         to AS6830 announce AS-RIOMEDIA-NIXCZ
import:         from AS6830 accept AS6830
export:         to AS28725 announce AS-RIOMEDIA-NIXCZ
import:         from AS28725 accept AS28725
export:         to AS28725 announce AS-RIOMEDIA-NIXCZ
import:         from AS28725 accept AS28725
export:         to AS29134 announce AS-RIOMEDIA-NIXCZ
import:         from AS29134 accept AS29134
export:         to AS29134 announce AS-RIOMEDIA-NIXCZ
import:         from AS29134 accept AS29134
export:         to AS29208 announce AS-RIOMEDIA-NIXCZ
import:         from AS29208 accept AS29208
export:         to AS29113 announce AS-RIOMEDIA-NIXCZ
import:         from AS29113 accept AS29113
export:         to AS29113 announce AS-RIOMEDIA-NIXCZ
import:         from AS29113 accept AS29113
export:         to AS21430 announce AS-RIOMEDIA-NIXCZ
import:         from AS21430 accept AS21430
export:         to AS39906 announce AS-RIOMEDIA-NIXCZ
import:         from AS39906 accept AS39906
export:         to AS2686 announce AS-RIOMEDIA-NIXCZ
import:         from AS2686 accept AS2686
export:         to AS24971 announce AS-RIOMEDIA-NIXCZ
import:         from AS24971 accept AS24971
export:         to AS16019 announce AS-RIOMEDIA-NIXCZ
import:         from AS16019 accept AS16019
export:         to AS16019 announce AS-RIOMEDIA-NIXCZ
import:         from AS16019 accept AS16019
export:         to AS29208 announce AS-RIOMEDIA-NIXCZ
import:         from AS29208 accept AS29208
export:         to AS16265 announce AS-RIOMEDIA-NIXCZ
import:         from AS16265 accept AS16265
export:         to AS8928 announce AS-RIOMEDIA-NIXCZ
import:         from AS8928 accept AS8928
export:         to AS16276 announce AS-RIOMEDIA-NIXCZ
import:         from AS16276 accept AS16276
export:         to AS35361 announce AS-RIOMEDIA-NIXCZ
import:         from AS35361 accept AS35361
export:         to AS35361 announce AS-RIOMEDIA-NIXCZ
import:         from AS35361 accept AS35361
export:         to AS41824 announce AS-RIOMEDIA-NIXCZ
import:         from AS41824 accept AS41824
export:         to AS8913 announce AS-RIOMEDIA-NIXCZ
import:         from AS8913 accept AS8913
export:         to AS12767 announce AS-RIOMEDIA-NIXCZ
import:         from AS12767 accept AS12767
export:         to AS12767 announce AS-RIOMEDIA-NIXCZ
import:         from AS12767 accept AS12767
export:         to AS112 announce AS-RIOMEDIA-NIXCZ
import:         from AS112 accept AS112
export:         to AS50698 announce AS-RIOMEDIA-NIXCZ
import:         from AS50698 accept AS50698
export:         to AS48268 announce AS-RIOMEDIA-NIXCZ
import:         from AS48268 accept AS48268
export:         to AS42306 announce AS-RIOMEDIA-NIXCZ
import:         from AS42306 accept AS42306
export:         to AS33926 announce AS-RIOMEDIA-NIXCZ
import:         from AS33926 accept AS33926
export:         to AS197197 announce AS-RIOMEDIA-NIXCZ
import:         from AS197197 accept AS197197
remarks:        ---- NIX.CZ v6----
mp-export:      to AS6881 announce AS-RIOMEDIA-NIXCZ
mp-import:      from AS6881 accept AS6881
mp-export:      to AS6881 announce AS-RIOMEDIA-NIXCZ
mp-import:      from AS6881 accept AS6881
mp-export:      to AS9080 announce AS-RIOMEDIA-NIXCZ
mp-import:      from AS9080 accept AS9080
mp-export:      to AS12767 announce AS-RIOMEDIA-NIXCZ
mp-import:      from AS12767 accept AS12767
mp-export:      to AS12767 announce AS-RIOMEDIA-NIXCZ
mp-import:      from AS12767 accept AS12767
mp-export:      to AS15685 announce AS-RIOMEDIA-NIXCZ
mp-import:      from AS15685 accept AS15685
mp-export:      to AS29208 announce AS-RIOMEDIA-NIXCZ
mp-import:      from AS29208 accept AS29208
mp-export:      to AS29208 announce AS-RIOMEDIA-NIXCZ
mp-import:      from AS29208 accept AS29208
mp-export:      to AS15598 announce AS-RIOMEDIA-NIXCZ
mp-import:      from AS15598 accept AS15598
mp-export:      to AS24971 announce AS-RIOMEDIA-NIXCZ
mp-import:      from AS24971 accept AS24971
mp-export:      to AS8251 announce AS-RIOMEDIA-NIXCZ
mp-import:      from AS8251 accept AS8251
mp-export:      to AS8251 announce AS-RIOMEDIA-NIXCZ
mp-import:      from AS8251 accept AS8251
mp-export:      to AS9002 announce AS-RIOMEDIA-NIXCZ
mp-import:      from AS9002 accept AS9002
mp-export:      to AS16265 announce AS-RIOMEDIA-NIXCZ
mp-import:      from AS16265 accept AS16265
mp-export:      to AS39790 announce AS-RIOMEDIA-NIXCZ
mp-import:      from AS39790 accept AS39790
mp-export:      to AS39790 announce AS-RIOMEDIA-NIXCZ
mp-import:      from AS39790 accept AS39790
mp-export:      to AS35592 announce AS-RIOMEDIA-NIXCZ
mp-import:      from AS35592 accept AS35592
mp-export:      to AS15614 announce AS-RIOMEDIA-NIXCZ
mp-import:      from AS15614 accept AS15614
mp-export:      to AS30764 announce AS-RIOMEDIA-NIXCZ
mp-import:      from AS30764 accept AS30764
mp-export:      to AS2852 announce AS-RIOMEDIA-NIXCZ
mp-import:      from AS2852 accept AS2852
mp-export:      to AS2852 announce AS-RIOMEDIA-NIXCZ
mp-import:      from AS2852 accept AS2852
mp-export:      to AS16019 announce AS-RIOMEDIA-NIXCZ
mp-import:      from AS16019 accept AS16019
mp-export:      to AS16019 announce AS-RIOMEDIA-NIXCZ
mp-import:      from AS16019 accept AS16019
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         AS5610-MTN
created:        2003-10-21T14:46:13Z
last-modified:  2024-06-20T15:31:33Z
source:         RIPE
remarks:        ****************************
remarks:        * THIS OBJECT IS MODIFIED
remarks:        * Please note that all data that is generally regarded as personal
remarks:        * data has been removed from this object.
remarks:        * To view the original object, please query the RIPE Database at:
remarks:        * http://www.ripe.net/whois
remarks:        ****************************


organisation:   ORG-STaN1-RIPE
org-name:       O2 Czech Republic, a.s.
country:        CZ
org-type:       LIR
address:        Dummy address for ORG-STaN1-RIPE
# Email removed, Log into bgp.tools to see whois emails
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:  2020-12-16T12:31:56Z
source:         RIPE
remarks:        ****************************
remarks:        * THIS OBJECT IS MODIFIED
remarks:        * Please note that all data that is generally regarded as personal
remarks:        * data has been removed from this object.
remarks:        * To view the original object, please query the RIPE Database at:
remarks:        * http://www.ripe.net/whois
remarks:        ****************************

Last Update: 2025-12-22T03:24:32Z UTC

Member of the following AS-SETs

-	Member	ASN Count
RIPE	as-to2-nix-peer	63
LEVEL3	as-level3-origins-eu	0
RIPE	as-riomedia-nixcz	88
LEVEL3	as-sprint-origins	7309
RIPE	as-clnet-transit	2
RIPE	as-nejcz-nixcz	90
RIPE	as24971:as-mai-peering-cz-peer	10
RIPE	as12570:as-nix-peers	13
RIPE	as-nejcz-transit	90
LEVEL3	as-level3-origins-na	0
RIPE	as42000:as-nixcz-peerings	80
RIPE	as-riomedia-transit	88
RIPE	as-transcz	799
RIPE	as-nejtv-transit	20
RIPE	as-43413_nt-nix	69
RIPE	as-clnet-nixcz	2
RIPE	as-cesnet-nix-peers	90422
RIPE	as-nejtv-nixcz	19
RIPE	as-riomedia	1

View

Upstreams

Rankings

Tags:

Network Policy

Prefixes in selected policy

Upstreams

Peers

Downstreams

Member of the following AS-SETs