AS Number
AS198605
AS Name
AVAST-AS-DC
Org Name
AVAST Software s.r.o.
Country / Region
Czech
Registry

ripe

RegDate

Updated

2026-02-18T10:24:00Z

AS198605 Looking Glass
IPv4Prefixes

21

IPv6Prefixes

8

IPv4 NUMs

5,632

IPv6 NUMs(/64)

67,698,688

CIDR Description IP Num
5.45.58.0/24
IRR Valid
AVAST Software s.r.o. 256
5.45.59.0/24
IRR Valid
AVAST Software s.r.o. 256
5.62.36.0/23
IRR Valid
NortonLifeLock Ireland Limited 512
5.62.54.0/24
IRR Valid
NortonLifeLock Ireland Limited 256
5.62.60.0/23
IRR Valid
NortonLifeLock Ireland Limited 512
37.156.187.0/24
IRR Valid
AVAST Software s.r.o. 256
69.94.64.0/24
IRR Valid
AVAST Software s.r.o. 256
69.94.70.0/24
IRR Valid
AVAST Software s.r.o. 256
69.94.71.0/24
IRR Valid
AVAST Software s.r.o. 256
69.94.74.0/24
IRR Valid
AVAST Software s.r.o. 256
69.94.74.0/23
IRR InValid
AVAST Software s.r.o. 512
69.94.75.0/24
IRR Valid
AVAST Software s.r.o. 256
77.234.40.0/24
IRR Valid
AVAST Software s.r.o. 256
91.213.143.0/24
IRR Valid
AVAST Software s.r.o. 256
166.98.8.0/24
Gen Digital Inc. 256
166.98.10.0/24
Gen Digital Inc. 256
166.98.11.0/24
Gen Digital Inc. 256
185.189.92.0/24
IRR Valid
AVG Technologies CZ, s.r.o. 256
185.189.94.0/24
IRR Valid
AVAST Software s.r.o. 256
185.189.95.0/24
IRR Valid
AVAST Software s.r.o. 256
195.74.76.0/24
IRR Valid
AVAST Software s.r.o. 256
CIDR Description IP NUMs(prefix /64)
2001:67c:284::/48
IRR Valid
AVAST Software s.r.o. 65536
2a0b:e181::/40
IRR Valid
AVAST Software s.r.o. 16777216
2a0b:e181:108::/45
IRR Parent Valid
AVAST Software s.r.o. 524288
2a0b:e181:400::/40
IRR Valid
AVAST Software s.r.o. 16777216
2a0b:e181:500::/40
IRR Valid
AVAST Software s.r.o. 16777216
2a0b:e181:600::/40
IRR Valid
AVAST Software s.r.o. 16777216
2a0b:e181:604::/48
IRR Parent Valid
AVAST Software s.r.o. 65536
2a0b:e181:605::/48
IRR Parent Valid
AVAST Software s.r.o. 65536
AS Description Country / Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS29208 QUANTCOM-AS - Quantcom, a.s., CZ Czech 265,984 17,179,869,184 IPv4 IPv4 IPv6 IPv6
AS1000 LINK-AMERICAN - LINK AMERICAN, US United States 0 0 IPv4 IPv4
AS3257 GTT-BACKBONE - GTT Communications Inc., US United States 8,552,448 442,382,745,600 IPv4 IPv4 IPv6 IPv6
AS3356 LEVEL3 - Level 3 Parent, LLC, US United States 28,864,512 81,626,398,720 IPv4 IPv4 IPv6 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
AS29208 QUANTCOM-AS - Quantcom, a.s., CZ Czech 265,984 17,179,869,184 IPv4 IPv4

Whois Record

as-block AS198305 - AS199072

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
2026-02-18T10:24:00Z
last-modified
2026-02-18T10:24:00Z
source
RIPE

aut-num AS198605

aut-num
as-name
AVAST-AS-DC
org
ORG-ASa95-RIPE
remarks
Czech Republic / www.avast.com
descr
Gen Digital dba as Avast
import
from AS2819 accept ANY
from AS3356 accept ANY
from AS14745 accept ANY
from AS2819 accept ANY
from AS12182 accept ANY
export
to AS2819 announce AS198605
to AS3356 announce AS198605
to AS14745 announce AS198605
to AS174 announce AS198605
to AS12182 announce AS198605
admin-c
PC4833-RIPE
tech-c
PC4833-RIPE
status
ASSIGNED
notify
noc@avast.com
mnt-by
RIPE-NCC-END-MNT
ASW-MNT
created
2012-03-21T15:12:16Z
last-modified
2023-05-31T14:40:50Z
source
RIPE

organisation ORG-ASa95-RIPE

organisation
ORG-ASa95-RIPE
org-name
AVAST Software s.r.o.
country
CZ
reg-nr
02176475
org-type
LIR
address
Pikrtova 1737/1a
14000
Praha 4
CZECH REPUBLIC
phone
+420731504666
fax-no
+420274005777
e-mail
noc@avast.com
admin-c
PC4833-RIPE
abuse-c
ASW
mnt-ref
RIPE-NCC-HM-MNT
ASW-MNT
mnt-by
RIPE-NCC-HM-MNT
ASW-MNT
created
2012-03-15T16:36:16Z
last-modified
2026-05-13T07:34:07Z
source
RIPE

person Radim Jurica

person
Radim Jurica
address
Pikrtova 1737/1a, Praha 4, 140 00, CZ
e-mail
radim.jurica@avast.com
mnt-by
ASW-MNT
phone
+420724634790
nic-hdl
PC4833-RIPE
created
2008-03-20T08:50:59Z
last-modified
2021-10-25T09:08:44Z
source
RIPE

as-block:       AS198305 - AS199072
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:        2026-02-18T10:24:00Z
last-modified:  2026-02-18T10:24:00Z
source:         RIPE



aut-num:        AS198605
as-name:        AVAST-AS-DC
org:            ORG-ASa95-RIPE
remarks:        Czech Republic / www.avast.com
descr:          Gen Digital dba as Avast
import:         from AS2819 accept ANY
import:         from AS3356 accept ANY
import:         from AS14745 accept ANY
import:         from AS2819 accept ANY
import:         from AS12182 accept ANY
export:         to AS2819 announce AS198605
export:         to AS3356 announce AS198605
export:         to AS14745 announce AS198605
export:         to AS174 announce AS198605
export:         to AS12182 announce AS198605
admin-c:        PC4833-RIPE
tech-c:         PC4833-RIPE
status:         ASSIGNED
notify:         noc@avast.com
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         ASW-MNT
created:        2012-03-21T15:12:16Z
last-modified:  2023-05-31T14:40:50Z
source:         RIPE

organisation:   ORG-ASa95-RIPE
org-name:       AVAST Software s.r.o.
country:        CZ
reg-nr:         02176475
org-type:       LIR
address:        Pikrtova 1737/1a
address:        14000
address:        Praha 4
address:        CZECH REPUBLIC
phone:          +420731504666
fax-no:         +420274005777
e-mail:         noc@avast.com
admin-c:        PC4833-RIPE
abuse-c:        ASW
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        ASW-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         ASW-MNT
created:        2012-03-15T16:36:16Z
last-modified:  2026-05-13T07:34:07Z
source:         RIPE

person:         Radim Jurica
address:        Pikrtova 1737/1a, Praha 4, 140 00, CZ
e-mail:         radim.jurica@avast.com
mnt-by:         ASW-MNT
phone:          +420724634790
nic-hdl:        PC4833-RIPE
created:        2008-03-20T08:50:59Z
last-modified:  2021-10-25T09:08:44Z
source:         RIPE