Autonomous System details

AS44143

A1 Srbija d.o.o  ·  a1.rs

Serbia

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AS44143 – A1 Srbija d.o.o

Field Value
Country Serbia
Website a1.rs
Hosted domains 58
IPv4 addresses 20,480
IPv6 addresses 792,281,625,142,643,375,935,439,503,360
ASN type ISP
Registry ripe
Allocated 18 years ago on Nov 23, 2007
Updated 3 months ago on Oct 22, 2025

IP Ranges

Netblock Company Num of IPs
77.243.16.0/20 A1 Srbija d.o.o 4,096
188.120.96.0/20 A1 Srbija d.o.o 4,096
37.19.104.0/21 A1 Srbija d.o.o 2,048
77.243.16.0/21 A1 Serbia public IP addresses 2,048
95.86.48.0/21 A1 Srbija d.o.o 2,048
188.120.96.0/21 A1 Srbija d.o.o 2,048
188.120.104.0/21 A1 Srbija d.o.o 2,048
188.120.112.0/21 A1 Srbija d.o.o 2,048
198.143.176.0/21 A1 Srbija d.o.o 2,048
77.243.24.0/22 A1_Serbia public IP addresses 1,024
77.243.28.0/22 A1_Serbia public pool 1,024
95.86.4.0/22 A1 Srbija d.o.o 1,024
95.86.8.0/22 A1 Srbija d.o.o 1,024
95.86.60.0/22 A1 Srbija d.o.o 1,024
185.37.24.0/22 A1 Srbija d.o.o 1,024
188.120.112.0/22 A1 Srbija d.o.o 1,024
188.120.116.0/22 A1_Serbia public IP addresses 1,024

Netblock Company
2a00:61c0::/29 A1 Srbija d.o.o
2a00:61c0::/32 A1 Srbija d.o.o
2a00:61c1::/32 A1 Srbija d.o.o
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WHOIS Details

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                                                ASHandle:       AS44143
                                                OrgID:          AS44143
                                                ASName:         AS44143
                                                ASNumber:       AS44143
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
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Hosted Domains

There are 58 domain names hosted across 18 IP addresses on this ASN.

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IP Address Domain Domains on this IP
77.243.17.76 ██████████ 20
77.243.16.127 █████ 20
185.37.24.70 ██████████ 3
188.120.115.5 ██████████ 1
95.86.4.55 ██████████ 1
198.143.180.122 ██████████ 1
95.86.4.80 ████████ 1
198.143.183.199 ██████████ 1
77.243.16.108 █████████ 1
188.120.111.66 ████████ 1

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Peers

There are 9 peers for this ASN.

Peers Name
AS13004 Serbian Open Exchange DOO
AS15958 CETINdoo-NET
AS174 Cogent Communications, LLC
AS205201 Public Service Media Radio Television of Serbia
AS213008 APOTEKARSKA USTANOVA LILLY DROGERIE BEOGRAD
AS31042 Serbia BroadBand-Srpske Kablovske mreze d.o.o.
AS32590 Valve Corporation
AS62012 Generali Osiguranje Srbija
AS8447 A1 Telekom Austria AG
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ASN API & Database

Upstreams

There are 2 upstreams for this ASN.

upstreams Name
AS174 Cogent Communications, LLC
AS8447 A1 Telekom Austria AG
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Downstreams

There is 1 peer for this ASN.

Downstreams Name
AS62012 Generali Osiguranje Srbija
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ASN API & Database

Pingable IPs

24 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
77.243.21.207 AS44143 A1 Srbija d.o.o 9.95ms from Zagreb, HR
77.243.18.160 AS44143 A1 Srbija d.o.o 7.97ms from Zagreb, HR
37.19.104.1 AS44143 A1 Srbija d.o.o 10.77ms from Zagreb, HR
2a00:61c0:0:a::1 AS44143 A1 Srbija d.o.o 6.98ms from Sofia, BG
188.120.114.83 AS44143 A1 Srbija d.o.o 10.25ms from Sofia, BG
77.243.17.132 AS44143 A1 Srbija d.o.o 7.94ms from Zagreb, HR
95.86.4.38 AS44143 A1 Srbija d.o.o 11.14ms from Zagreb, HR
37.19.105.113 AS44143 A1 Srbija d.o.o 8.71ms from Zagreb, HR
2a00:61c0:8000:8::1 AS44143 A1 Srbija d.o.o 7.03ms from Sofia, BG
188.120.111.28 AS44143 A1 Srbija d.o.o 8.14ms from Zagreb, HR
77.243.20.54 AS44143 A1 Srbija d.o.o 22.26ms from Zagreb, HR
95.86.7.253 AS44143 A1 Srbija d.o.o 14.11ms from Budapest, HU
188.120.107.178 AS44143 A1 Srbija d.o.o 8.06ms from Sofia, BG
77.243.16.2 AS44143 A1 Srbija d.o.o 7.92ms from Zagreb, HR
188.120.104.147 AS44143 A1 Srbija d.o.o 18.58ms from Zagreb, HR
188.120.105.1 AS44143 A1 Srbija d.o.o 13.89ms from Budapest, HU
188.120.108.11 AS44143 A1 Srbija d.o.o 11.97ms from Budapest, HU
188.120.110.24 AS44143 A1 Srbija d.o.o 10.53ms from Zagreb, HR
37.19.106.41 AS44143 A1 Srbija d.o.o 7.40ms from Sofia, BG
95.86.10.1 AS44143 A1 Srbija d.o.o 13.54ms from Vienna, AT
95.86.8.1 AS44143 A1 Srbija d.o.o 25.56ms from Zagreb, HR
185.37.24.101 AS44143 A1 Srbija d.o.o 5.72ms from Belgrade, RS
198.143.176.1 AS44143 A1 Srbija d.o.o 7.92ms from Zagreb, HR
188.120.115.43 AS44143 A1 Srbija d.o.o 8.09ms from Zagreb, HR

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address ASN Details
74.96.190.63 AS701 Verizon Business 2.97ms from Ashburn, US
217.247.3.111 AS3320 Deutsche Telekom AG 2.57ms from Berlin, DE
78.21.136.223 AS6848 Telenet BV 6.53ms from Brussels, BE
162.203.83.95 AS7018 AT&T Enterprises, LLC 10.31ms from Chicago, US
181.2.222.143 AS7303 Telecom Argentina S.A. 1.61ms from Cordoba, AR
90.196.76.191 AS5607 Sky UK Limited 2.31ms from Erith, GB
93.223.72.95 AS3320 Deutsche Telekom AG 9.10ms from Frankfurt am Main, DE
73.70.233.207 AS7922 Comcast Cable Communications, LLC 4.84ms from Fremont, US
37.138.51.127 AS9145 EWE TEL GmbH 7.91ms from Hamburg, DE
1.245.41.111 AS9318 SK Broadband Co Ltd 3.51ms from Incheon, KR
139.194.105.255 AS23700 Linknet-Fastnet ASN 1.20ms from Jakarta, ID
103.12.212.191 AS394381 L7 Connect 0.52ms from London, GB
82.43.134.79 AS5089 Virgin Media Limited 11.32ms from Maidenhead, GB
200.176.25.207 AS11706 TELEFÔNICA BRASIL S.A 11.08ms from Osasco, BR
80.117.191.255 AS3269 Telecom Italia S.p.A. 0.34ms from Palermo, IT
80.207.198.223 AS3269 Telecom Italia S.p.A. 9.04ms from Rende, IT
61.2.11.79 AS9829 National Internet Backbone 8.53ms from Saint Thomas Mount, IN
126.76.250.191 AS17676 SoftBank Corp. 3.39ms from Tokyo, JP
212.41.106.239 AS9044 BSE Software GmbH 4.18ms from Zuerich, CH
96.164.52.191 AS393232 Comcast Cable Communications, LLC 0.05ms from Chicago, US
96.165.31.31 AS393232 Comcast Cable Communications, LLC 0.05ms from Chicago, US
131.161.146.175 AS28343 UNIFIQUE TELECOMUNICACOES S/A 5.17ms from Curitiba, BR
79.233.55.111 AS3320 Deutsche Telekom AG 4.88ms from Duesseldorf, DE
91.156.249.127 AS719 Elisa Oyj 4.11ms from Helsinki, FI
86.149.33.255 AS2856 British Telecommunications PLC 2.01ms from London, GB

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more.

$
traceroute -a -n -q1 -f2 -m6 77.243.28.237
traceroute to 77.243.28.237 (77.243.28.237): 6 hops max, 52 byte packets
4 *
5 *
6 *
Measurement taken from IPinfo ProbeNet in Sandefjord, NO
On

Related Networks

What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS44143 at robtex.

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