AS Number
AS44143
AS Name
A1SERBIA-AS
Org Name
A1 Srbija d.o.o. Beograd
Country / Region
Serbia
Registry

ripe

RegDate

Updated

2023-12-11T15:09:58Z

AS44143 Looking Glass
IPv4Prefixes

14

IPv6Prefixes

3

IPv4 NUMs

20,480

IPv6 NUMs(/64)

34,359,738,368

CIDR Description IP Num
37.19.104.0/21
IRR InValid
A1 Srbija d.o.o. Beograd 2048
77.243.16.0/20
IRR InValid
A1 Srbija d.o.o. Beograd 4096
95.86.4.0/22
IRR InValid
A1 Srbija d.o.o 1024
95.86.8.0/22
IRR InValid
A1 Srbija d.o.o 1024
95.86.48.0/21
IRR InValid
A1 Srbija d.o.o. Beograd 2048
95.86.60.0/22
IRR InValid
A1 Srbija d.o.o. Beograd 1024
185.37.24.0/22
IRR InValid
A1 Srbija d.o.o. Beograd 1024
188.120.96.0/21
IRR InValid
A1_Serbia 2048
188.120.96.0/20
IRR InValid
A1_Serbia 4096
188.120.104.0/21
IRR InValid
A1_Serbia 2048
188.120.112.0/22
IRR InValid
A1_Serbia 1024
188.120.112.0/21
IRR InValid
A1_Serbia 2048
188.120.116.0/22
IRR InValid
A1_Serbia 1024
198.143.176.0/21
IRR InValid
A1 Srbija d.o.o. Beograd 2048
CIDR Description IP NUMs(prefix /64)
2a00:61c0::/32
IRR Valid
A1 Srbija d.o.o. Beograd 4294967296
2a00:61c0::/29
IRR InValid
A1 Srbija d.o.o. Beograd 34359738368
2a00:61c1::/32
IRR Valid
A1 Srbija d.o.o. Beograd 4294967296
AS Description Country / Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS13004 SOX - Serbian Open Exchange DOO, RS Serbia 1,024 65,536 IPv6 IPv6
AS32590 VALVE-CORPORATION - Valve Corporation, US United States 13,568 2,293,760 IPv6 IPv6
AS6204 ZET-NET - INTERKVM HOST SRL, RO Romania 3,840 268,500,999 IPv4 IPv4
AS8447 A1TELEKOM-AT - A1 Telekom Austria AG, AT Austria 2,779,392 171,798,953,984 IPv4 IPv4 IPv6 IPv6
AS174 COGENT-174 - Cogent Communications, LLC, US United States 36,233,472 215,834,689,537 IPv6 IPv6
AS Description Country / Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS31042 YETTEL-AS - Yettel d.o.o., RS Serbia 496,640 68,719,476,736 IPv4 IPv4
AS62012 GeneraliSrbija - Generali Osiguranje Srbija, RS Serbia 1,024 0 IPv4 IPv4
AS205201 rts-as - Public Service Media Radio Television of Serbia, RS Serbia 1,280 0 IPv4 IPv4
AS213008 LILLY-RS - APOTEKARSKA USTANOVA LILLY DROGERIE BEOGRAD, RS Serbia 256 0 IPv4 IPv4
AS394977 T2EE-AS1 - TAKE-TWO INTERACTIVE SOFTWARE, INC., US United States 12,032 393,216 IPv4 IPv4

Peers at this Exchange Point

Country / Region IX IPv4 IPv6 Port Speed Updated
Serbia SOX Serbia - Serbian Open eXchange 185.1.27.34 2001:7f8:1e::34 200 Gbps 2026-03-09 09:36:44

Private Peering Facilities

Country / Region Name City Website Updated
Absolut Solutions Belgrade http://absolutsolutions.rs/data-centar 2026-03-25 13:50:58
Cetin Data Center Belgrade https://www.cetin.rs/services/ 2026-03-25 13:51:03
BeotelNet Data Center Belgrade https://www.beotel.net 2026-03-25 13:51:22
Telekom Srbija data centar Belgrade https://mts.rs/Poslovni/Veliki-korisnici/Data-centar 2026-03-25 13:51:34
TELEPOINT Sofia Centre Sofia https://www.telepoint.bg/ 2026-03-25 13:51:56

Whois Record

as-block AS43075 - AS44168

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
2023-12-11T15:09:58Z
last-modified
2023-12-11T15:09:58Z
source
RIPE

aut-num AS44143

aut-num
as-name
A1SERBIA-AS
org
ORG-Td12-RIPE
notify
admin-c
NJ1795-RIPE
IP4668-RIPE
tech-c
IP4668-RIPE
remarks
==================
UPSTREAM IPv4
==================
==================
UPSTREAM IPv6
==================
=====================
DOWNSTREAM IPv4
=====================
===============================
PRIVATE PEERINGS & IXPs IPv4
===============================
===============================
PRIVATE PEERINGS & IXPs IPv6
===============================
import
from AS8447 accept any
from AS174 accept any
from AS62012 accept AS62012
from AS205201 accept AS205201
from AS213008 accept AS213008
from AS394977 accept AS394977
from AS13004 accept AS-SOX
from AS15169 accept AS15169
from AS9125 accept AS9125
from AS31042 accept AS31042
from AS44306 accept AS-OMONIA
from AS13335 accept AS-CLOUDFLARE
export
to AS8447 announce AS-VIP-MOBLE
to AS174 announce AS-VIP-MOBLE
to AS62012 announce any
to AS205201 announce any
to AS213008 announce any
to AS394977 announce any
to AS13004 announce AS-VIP-MOBLE
to AS15169 announce AS-VIP-MOBLE
to AS9125 announce AS-VIP-MOBLE
to AS31042 announce AS-VIP-MOBLE
to AS44306 announce AS-VIP-MOBLE
to AS13335 announce AS-VIP-MOBLE
mp-import
afi ipv6.unicast from AS8447 accept any
afi ipv6.unicast from AS174 accept any
afi ipv6.unicast from AS13004 accept AS-SOX
mp-export
afi ipv6.unicast to AS8447 announce AS-VIP-MOBLE
afi ipv6.unicast to AS174 announce AS-VIP-MOBLE
afi ipv6.unicast to AS13004 announce AS-VIP-MOBLE
status
ASSIGNED
mnt-by
RIPE-NCC-END-MNT
ROUTE-SRB
created
2007-11-23T08:24:49Z
last-modified
2026-05-14T08:29:28Z
source
RIPE

organisation ORG-TD12-RIPE

organisation
ORG-TD12-RIPE
org-name
A1 Srbija d.o.o. Beograd
country
RS
reg-nr
20220023
org-type
LIR
address
MILUTINA MILANKOVICA 1z
11070
BEOGRAD
SERBIA
phone
+381601234
+381602254141
e-mail
admin-c
NJ1795-RIPE
abuse-c
VMA21-RIPE
mnt-ref
RIPE-NCC-HM-MNT
ROUTE-SRB
notify
mnt-by
RIPE-NCC-HM-MNT
ROUTE-SRB
created
2007-02-27T15:48:38Z
last-modified
2026-08-21T11:08:28Z
source
RIPE
tech-c
IP4668-RIPE
                Navigator

role A1 Serbia IP Admins

role
A1 Serbia IP Admins
address
A1 Serbia doo
Milutina Milankovica 1z
11070 Beograd
e-mail
phone
+381602254141
admin-c
NJ1795-RIPE
MS59239-RIPE
nic-hdl
IP4668-RIPE
mnt-by
ROUTE-SRB
created
2022-10-13T08:44:34Z
last-modified
2026-03-25T14:34:49Z
source
RIPE

person Novak Josic

person
Novak Josic
address
A1 Serbia doo
Milutina Milankovica 1z
11070 Beograd
phone
+381600004437
e-mail
nic-hdl
NJ1795-RIPE
mnt-by
ROUTE-SRB
created
2023-05-10T12:07:14Z
last-modified
2023-05-24T10:00:33Z
source
RIPE

as-block:       AS43075 - AS44168
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:        2023-12-11T15:09:58Z
last-modified:  2023-12-11T15:09:58Z
source:         RIPE



aut-num:        AS44143
as-name:        A1SERBIA-AS
org:            ORG-Td12-RIPE
notify:         [email protected]
admin-c:        NJ1795-RIPE
admin-c:        IP4668-RIPE
tech-c:         IP4668-RIPE
remarks:        ==================
remarks:        UPSTREAM IPv4
remarks:        ==================
import:         from AS8447 accept any
export:         to AS8447 announce AS-VIP-MOBLE
import:         from AS174 accept any
export:         to AS174 announce AS-VIP-MOBLE
remarks:        ==================
remarks:        UPSTREAM IPv6
remarks:        ==================
mp-import:      afi ipv6.unicast from AS8447 accept any
mp-export:      afi ipv6.unicast to AS8447 announce AS-VIP-MOBLE
mp-import:      afi ipv6.unicast from AS174 accept any
mp-export:      afi ipv6.unicast to AS174 announce AS-VIP-MOBLE
remarks:        =====================
remarks:        DOWNSTREAM IPv4
remarks:        =====================
import:         from AS62012 accept AS62012
export:         to AS62012 announce any
import:         from AS205201 accept AS205201
export:         to AS205201 announce any
import:         from AS213008 accept AS213008
export:         to AS213008 announce any
import:         from AS394977 accept AS394977
export:         to AS394977 announce any
remarks:        ===============================
remarks:        PRIVATE PEERINGS & IXPs IPv4
remarks:        ===============================
import:         from AS13004 accept AS-SOX
export:         to AS13004 announce AS-VIP-MOBLE
import:         from AS15169 accept AS15169
export:         to AS15169 announce AS-VIP-MOBLE
import:         from AS9125 accept AS9125
export:         to AS9125 announce AS-VIP-MOBLE
import:         from AS31042 accept AS31042
export:         to AS31042 announce AS-VIP-MOBLE
import:         from AS44306 accept AS-OMONIA
export:         to AS44306 announce AS-VIP-MOBLE
import:         from AS13335 accept AS-CLOUDFLARE
export:         to AS13335 announce AS-VIP-MOBLE
remarks:        ===============================
remarks:        PRIVATE PEERINGS & IXPs IPv6
remarks:        ===============================
mp-import:      afi ipv6.unicast from AS13004 accept AS-SOX
mp-export:      afi ipv6.unicast to AS13004 announce AS-VIP-MOBLE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         ROUTE-SRB
created:        2007-11-23T08:24:49Z
last-modified:  2026-05-14T08:29:28Z
source:         RIPE

organisation:   ORG-TD12-RIPE
org-name:       A1 Srbija d.o.o. Beograd
country:        RS
reg-nr:         20220023
org-type:       LIR
address:        MILUTINA MILANKOVICA 1z
                Navigator
address:        11070
address:        BEOGRAD
address:        SERBIA
phone:          +381601234
phone:          +381602254141
e-mail:         [email protected]
admin-c:        NJ1795-RIPE
abuse-c:        VMA21-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        ROUTE-SRB
notify:         [email protected]
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         ROUTE-SRB
created:        2007-02-27T15:48:38Z
last-modified:  2026-08-21T11:08:28Z
source:         RIPE
tech-c:         IP4668-RIPE

role:           A1 Serbia IP Admins
address:        A1 Serbia doo
address:        Milutina Milankovica 1z
address:        11070 Beograd
e-mail:         [email protected]
phone:          +381602254141
admin-c:        NJ1795-RIPE
admin-c:        MS59239-RIPE
nic-hdl:        IP4668-RIPE
mnt-by:         ROUTE-SRB
created:        2022-10-13T08:44:34Z
last-modified:  2026-03-25T14:34:49Z
source:         RIPE

person:         Novak Josic
address:        A1 Serbia doo
address:        Milutina Milankovica 1z
address:        11070 Beograd
phone:          +381600004437
e-mail:         [email protected]
nic-hdl:        NJ1795-RIPE
mnt-by:         ROUTE-SRB
created:        2023-05-10T12:07:14Z
last-modified:  2023-05-24T10:00:33Z
source:         RIPE