AS Number
AS57801
AS Name
SK-NIC-AS
Org Name
SK-NIC, a.s.
Country / Region
Slovakia
Registry

ripe

RegDate

Updated

2025-04-24T14:15:44Z

AS57801 Looking Glass
IPv4Prefixes

5

IPv6Prefixes

5

IPv4 NUMs

1,280

IPv6 NUMs(/64)

327,680

CIDR Description IP Num
84.245.96.0/24
IRR Valid
SK-NIC, a.s. 256
109.71.66.0/24
IRR Valid
CNC, a.s. 256
185.16.187.0/24
IRR Valid
CENTRALNIC-REGISTRY 256
194.0.45.0/24
IRR Valid
SK-NIC, a.s. 256
195.12.159.0/24
IRR Valid
SK-NIC, a.s. 256
CIDR Description IP NUMs(prefix /64)
2001:678:70::/48
IRR Valid
SK-NIC, a.s. 65536
2001:678:90::/48
IRR Valid
SK-NIC, a.s. 65536
2001:678:9c::/48
IRR Valid
SK-NIC, a.s. 65536
2a02:6300:30::/48
IRR Valid
SK-NIC, a.s. 65536
2a04:2b00:100::/48
IRR Valid
CentralNic Ltd 65536
AS Description Country / Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS174 COGENT-174 - Cogent Communications, LLC, US United States 36,233,472 215,834,689,537 IPv4 IPv4 IPv6 IPv6
AS1239 COGENT-1239 - Cogent Communications, LLC, US United States 0 210,729,631,744 IPv4 IPv4 IPv6 IPv6
AS50128 CNC - CNC, a.s., SK Slovakia 2,304 4,294,967,296 IPv4 IPv4 IPv6 IPv6

Whois Record

as-block AS57370 - AS57973

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
2025-04-24T14:15:44Z
last-modified
2025-04-24T14:15:44Z
source
RIPE

aut-num AS57801

aut-num
as-name
SK-NIC-AS
org
ORG-Sa944-RIPE
remarks
--------------------------------------
--------------------------------------
--------------------------------------
--------------------------------------
--------------------------------------
--------------------------------------
--------------------------------------
---------------------------------------------------------
CloudFlare
-
---------------------------------------------------------
---------------------------------------------------------
--------------------------------------
--------------------------------------
descr
--- upstreamm provider: sk.callino
--- upstreamm provider: sk.cncas
--- upstreamm providers for anycast
--- service: icann l-root
--- upstreamm provider: Cogent
import
from AS16160 accept any
from AS50128 accept any
from AS57801:AS-TRANSIT-ANYCAST accept { 0.0.0.0/0 }
FROM AS13335 ACCEPT ANY
from AS20144 accept AS20144
from AS174 accept any
export
to AS16160 announce AS57801:AS-TRANZIT
to AS50128 announce AS57801:AS-TRANZIT
to AS57801:AS-TRANSIT-ANYCAST announce RS-SK-NIC-ANYCAST
TO AS13335 ANNOUNCE AS57801
to AS20144 announce { 0.0.0.0/0 }
to AS174 announce AS57801
mp-import
afi ipv6.unicast from AS16160 accept ANY
afi ipv6.unicast from AS50128 accept ANY
afi ipv6.unicast from AS57801:AS-TRANSIT-ANYCAST accept { 0.0.0.0/0, ::/0 }
afi ipv6.unicast from AS20144 accept AS20144
mp-export
afi ipv6.unicast to AS16160 announce AS57801:AS-TRANZIT
afi ipv6.unicast to AS50128 announce AS57801:AS-TRANZIT
afi ipv6.unicast to AS57801:AS-TRANSIT-ANYCAST announce RS-SK-NIC-ANYCAST
afi ipv6.unicast to AS20144 announce { 0.0.0.0/0, ::/0 }
admin-c
CNO4-RIPE
tech-c
CNO4-RIPE
status
ASSIGNED
mnt-by
RIPE-NCC-END-MNT
SKNIC-MNT
notify
ops@centralnic.com
created
2012-02-13T12:05:45Z
last-modified
2024-10-21T15:24:47Z
source
RIPE
sponsoring-org
ORG-Ca995-RIPE

organisation ORG-SA944-RIPE

organisation
ORG-SA944-RIPE
org-name
SK-NIC, a.s.
country
SK
reg-nr
35 698 446
org-type
OTHER
address
P.O.BOX 49
840 00 Bratislava 4
Slovak Republic
e-mail
hostmaster@sk-nic.sk
abuse-c
AC29221-RIPE
mnt-ref
SKNIC-MNT
mnt-by
SKNIC-MNT
admin-c
CNO4-RIPE
tech-c
CNO4-RIPE
created
2011-11-10T14:53:30Z
last-modified
2026-05-13T05:53:19Z
source
RIPE

role CentralNic Network Operations

role
CentralNic Network Operations
address
CentralNic Ltd
4th Floor, Saddlers House
44 Gutter Lane
London
EC2V 6BR
United Kingdom
e-mail
ops@centralnic.com
org
ORG-CL213-RIPE
notify
ops@centralnic.com
admin-c
DNS53
KA4521-RIPE
JH30387-RIPE
nic-hdl
CNO4-RIPE
mnt-by
CENTRALNIC-MNT
created
2013-04-08T09:10:27Z
last-modified
2026-06-18T08:20:35Z
source
RIPE

as-block:       AS57370 - AS57973
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:        2025-04-24T14:15:44Z
last-modified:  2025-04-24T14:15:44Z
source:         RIPE



aut-num:        AS57801
as-name:        SK-NIC-AS
org:            ORG-Sa944-RIPE
remarks:        --------------------------------------
descr:          --- upstreamm provider: sk.callino
remarks:        --------------------------------------
import:         from AS16160 accept any
export:         to AS16160 announce AS57801:AS-TRANZIT
mp-import:      afi ipv6.unicast from AS16160 accept ANY
mp-export:      afi ipv6.unicast to AS16160 announce AS57801:AS-TRANZIT
remarks:        --------------------------------------
descr:          --- upstreamm provider: sk.cncas
remarks:        --------------------------------------
import:         from AS50128 accept any
export:         to AS50128 announce AS57801:AS-TRANZIT
mp-import:      afi ipv6.unicast from AS50128 accept ANY
mp-export:      afi ipv6.unicast to AS50128 announce AS57801:AS-TRANZIT
remarks:        --------------------------------------
descr:          --- upstreamm providers for anycast
remarks:        --------------------------------------
import:         from AS57801:AS-TRANSIT-ANYCAST accept { 0.0.0.0/0 }
export:         to AS57801:AS-TRANSIT-ANYCAST announce RS-SK-NIC-ANYCAST
mp-import:      afi ipv6.unicast from AS57801:AS-TRANSIT-ANYCAST accept { 0.0.0.0/0, ::/0 }
mp-export:      afi ipv6.unicast to AS57801:AS-TRANSIT-ANYCAST announce RS-SK-NIC-ANYCAST
remarks:        --------------------------------------
descr:          --- service: icann l-root
remarks:        ---------------------------------------------------------
remarks:        CloudFlare
remarks:        -
import:         FROM AS13335 ACCEPT ANY
export:         TO AS13335 ANNOUNCE AS57801
remarks:        ---------------------------------------------------------
import:         from AS20144 accept AS20144
export:         to AS20144 announce { 0.0.0.0/0 }
mp-import:      afi ipv6.unicast from AS20144 accept AS20144
mp-export:      afi ipv6.unicast to AS20144 announce { 0.0.0.0/0, ::/0 }
remarks:        ---------------------------------------------------------
descr:          --- upstreamm provider: Cogent
remarks:        --------------------------------------
import:         from AS174 accept any
export:         to AS174 announce AS57801
remarks:        --------------------------------------
admin-c:        CNO4-RIPE
tech-c:         CNO4-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         SKNIC-MNT
notify:         ops@centralnic.com
created:        2012-02-13T12:05:45Z
last-modified:  2024-10-21T15:24:47Z
source:         RIPE
sponsoring-org: ORG-Ca995-RIPE

organisation:   ORG-SA944-RIPE
org-name:       SK-NIC, a.s.
country:        SK
reg-nr:         35 698 446
org-type:       OTHER
address:        P.O.BOX 49
address:        840 00 Bratislava 4
address:        Slovak Republic
e-mail:         hostmaster@sk-nic.sk
abuse-c:        AC29221-RIPE
mnt-ref:        SKNIC-MNT
mnt-by:         SKNIC-MNT
admin-c:        CNO4-RIPE
tech-c:         CNO4-RIPE
created:        2011-11-10T14:53:30Z
last-modified:  2026-05-13T05:53:19Z
source:         RIPE

role:           CentralNic Network Operations
address:        CentralNic Ltd
address:        4th Floor, Saddlers House
address:        44 Gutter Lane
address:        London
address:        EC2V 6BR
address:        United Kingdom
e-mail:         ops@centralnic.com
org:            ORG-CL213-RIPE
notify:         ops@centralnic.com
admin-c:        DNS53
admin-c:        KA4521-RIPE
admin-c:        JH30387-RIPE
nic-hdl:        CNO4-RIPE
mnt-by:         CENTRALNIC-MNT
created:        2013-04-08T09:10:27Z
last-modified:  2026-06-18T08:20:35Z
source:         RIPE