Autonomous System details

AS51859

Mainstream doo Beograd  ·  mainstream.eu

Serbia

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AS51859 – Mainstream doo Beograd

Field Value
Country Serbia
Website mainstream.eu
Hosted domains 1,044
IPv4 addresses 14,080
IPv6 addresses 673,439,381,371,246,868,000,000,000,000
ASN type Hosting
Registry ripe
Allocated 15 years ago on Nov 17, 2010
Updated 6 months ago on Oct 21, 2025

IP Ranges

Netblock Company Num of IPs
206.15.32.0/20 Mainstream doo Beograd 4,096
87.237.200.0/21 Mainstream doo Beograd 2,048
91.214.200.0/22 Mainstream doo Beograd 1,024
91.222.4.0/22 Virtual infrastructure 1,024
92.249.52.0/22 Mainstream doo Beograd 1,024
185.29.100.0/22 Virtual infrastructure 1,024
185.167.144.0/22 Mainstream Cloud 1,024
188.93.120.0/22 Mainstream doo Beograd 1,024
91.185.218.0/23 Enterprise Cloud 512
87.237.201.0/24 Virtual Infrastructure 256
87.237.202.0/24 Virtual Infrastructure 256
87.237.203.0/24 Virtual Infrastructure 256
87.237.204.0/24 Virtual Infrastructure 256
87.237.205.0/24 Mainstream Enterprise Cloud 256
87.237.206.0/24 Virtual infrastructure 256
87.237.207.0/24 Virtual infrastructure 256
91.185.199.0/24 Enterprise Cloud 256
91.185.223.0/24 Enterprise Cloud 256
91.222.4.0/24 Virtual infrastructure 256
91.222.5.0/24 Virtual infrastructure 256
91.222.6.0/24 Virtual infrastructure 256
91.222.7.0/24 Virtual infrastructure 256
185.29.100.0/24 Virtual infrastructure 256
185.29.101.0/24 Virtual infrastructure 256
185.29.102.0/24 Virtual infrastructure 256
185.29.103.0/24 Virtual infrastructure 256
185.167.146.0/24 Mainstream doo Beograd 256
185.167.147.0/24 Mainstream doo Beograd 256
185.168.19.0/24 Kancelarija za informacione tehnologije i elektronsku upravu 256
188.93.120.0/24 Virtual Infrastructure 256
188.93.121.0/24 Virtual Infrastructure 256
188.93.122.0/24 Virtual infrastructure 256
188.93.123.0/24 Virtual infrastructure 256
212.72.214.0/24 Vivacom Bulgaria EAD 256
213.91.181.0/24 Vivacom Bulgaria EAD 256

Netblock Company
2a04:2e40::/29 Mainstream doo Beograd
2a04:2e40::/34 Mainstream doo Beograd
2a04:2e40:4000::/34 Mainstream doo Beograd
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WHOIS Details

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                                                ASHandle:       AS51859
                                                OrgID:          AS51859
                                                ASName:         AS51859
                                                ASNumber:       AS51859
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
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Hosted Domains

There are 1,044 domain names hosted across 244 IP addresses on this ASN.

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IP Address Domain Domains on this IP
87.237.203.194 ██████████ 422
87.237.203.211 ██████████ 143
188.93.122.55 ██████████ 29
185.29.102.100 ██████████ 18
91.222.6.103 ██████████ 16
185.29.100.194 ██████████ 14
185.29.102.14 ██████████ 12
185.29.102.213 ██████████ 12
87.237.203.218 ██████████ 12
185.29.102.216 ██████████ 10

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Peers

There are 8 peers for this ASN.

Peers Name
AS13004 Serbian Open Exchange DOO
AS15958 CETINdoo-NET
AS21215 UNITED GROUP NETWORK INFRASTRUCTURE d.o.o. Beograd
AS24940 Hetzner Online GmbH
AS31042 Serbia BroadBand-Srpske Kablovske mreze d.o.o.
AS3212 Telemach Slovenija d.o.o.
AS8400 TELEKOM SRBIJA a.d.
AS8866 Vivacom Bulgaria EAD
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ASN API & Database

Upstreams

There are 5 upstreams for this ASN.

upstreams Name
AS15958 CETINdoo-NET
AS21215 UNITED GROUP NETWORK INFRASTRUCTURE d.o.o. Beograd
AS3212 Telemach Slovenija d.o.o.
AS8400 TELEKOM SRBIJA a.d.
AS8866 Vivacom Bulgaria EAD
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ASN API & Database

Downstreams

There are no downstreams for this ASN.

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ASN API & Database

Pingable IPs

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

IP Address ASN Details
87.237.202.219 AS51859 Mainstream doo Beograd 0.33ms from Belgrade, RS
213.91.181.126 AS51859 Mainstream doo Beograd 0.61ms from Sofia, BG
91.222.7.253 AS51859 Mainstream doo Beograd 0.46ms from Belgrade, RS
185.167.144.77 AS51859 Mainstream doo Beograd 0.47ms from Sofia, BG
91.185.218.53 AS51859 Mainstream doo Beograd 5.14ms from Vienna, AT
188.93.122.168 AS51859 Mainstream doo Beograd 0.27ms from Belgrade, RS
2a04:2e40:300::eeee:1 AS51859 Mainstream doo Beograd 0.82ms from Belgrade, RS
87.237.206.8 AS51859 Mainstream doo Beograd 0.26ms from Belgrade, RS
91.214.203.1 AS51859 Mainstream doo Beograd 0.27ms from Belgrade, RS
185.29.103.195 AS51859 Mainstream doo Beograd 0.22ms from Belgrade, RS
188.93.121.30 AS51859 Mainstream doo Beograd 0.40ms from Belgrade, RS
2a04:2e40:4202::1 AS51859 Mainstream doo Beograd 1.06ms from Belgrade, RS
185.167.147.10 AS51859 Mainstream doo Beograd 0.63ms from Sofia, BG
92.249.55.20 AS51859 Mainstream doo Beograd 0.43ms from Belgrade, RS
87.237.204.122 AS51859 Mainstream doo Beograd 0.47ms from Belgrade, RS
206.15.32.37 AS51859 Mainstream doo Beograd 2.01ms from Belgrade, RS
87.237.205.12 AS51859 Mainstream doo Beograd 0.40ms from Belgrade, RS
87.237.203.75 AS51859 Mainstream doo Beograd 0.27ms from Belgrade, RS
91.185.199.45 AS51859 Mainstream doo Beograd 5.06ms from Vienna, AT
185.29.101.102 AS51859 Mainstream doo Beograd 0.26ms from Belgrade, RS
185.168.19.132 AS51859 Mainstream doo Beograd 0.49ms from Belgrade, RS
87.237.207.251 AS51859 Mainstream doo Beograd 0.47ms from Belgrade, RS
87.237.201.133 AS51859 Mainstream doo Beograd 0.38ms from Belgrade, RS
188.93.120.1 AS51859 Mainstream doo Beograd 0.27ms from Belgrade, RS
188.93.123.118 AS51859 Mainstream doo Beograd 0.45ms from Belgrade, RS

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
63.143.178.35 AS53488 Optimum Online 19.55ms from Ashburn, US
216.189.105.19 AS31996 Zoom Telcom, LLC 6.29ms from Atlanta, US
20.21.200.83 AS8075 Microsoft Corporation 0.21ms from Az Za`ayin, QA
223.205.108.163 AS45758 Triple T Broadband Public Company Limited 11.27ms from Bangkok, TH
85.61.3.35 AS12479 Orange Espagne SA 13.42ms from Barcelona, ES
34.132.22.131 AS396982 Google LLC 0.12ms from Council Bluffs, US
143.83.236.67 AS5972 United States Department of Defense (DoD) 10.77ms from Dallas, US
34.240.226.19 AS16509 Amazon.com, Inc. 0.16ms from Dublin, IE
217.179.215.3 AS5503 RM Education Ltd 1.04ms from London, GB
209.40.126.19 AS40934 Fortinet Inc. 1.29ms from Madrid, ES
188.227.150.179 AS56882 AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONAL 1.39ms from Madrid, ES
87.3.68.51 AS3269 Telecom Italia S.p.A. 8.52ms from Milan, IT
159.8.118.19 AS36351 IBM Cloud 0.41ms from Paris, FR
176.168.46.19 AS5410 Bouygues Telecom SA 7.23ms from Paris, FR
54.242.48.195 AS14618 Amazon.com, Inc. 0.25ms from Reston, US
192.251.183.3 AS395346 Bonneville County Idaho 7.99ms from Salt Lake City, US
70.40.216.3 AS46606 Unified Layer 1.95ms from Salt Lake City, US
5.135.111.3 AS16276 OVH SAS 0.09ms from Strasbourg, FR
136.107.109.227 AS396982 Google LLC 0.14ms from Ashburn, US
223.83.51.147 AS56045 China Mobile communications corporation 12.85ms from Changsha, CN
90.185.110.99 AS203953 Hiper A/S 1.22ms from Copenhagen, DK
169.48.221.51 AS36351 IBM Cloud 0.85ms from Dallas, US
218.149.132.115 AS38135 KDB Life Insurance Co.,Ltd 1.87ms from Incheon, KR
75.135.169.35 AS20115 Charter Communications LLC 14.06ms from Minneapolis, US
174.138.48.19 AS14061 DigitalOcean, LLC 0.32ms from New York City, US

Traceroute

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

$
traceroute -a -n -q1 -f2 92.249.55.199
traceroute to 92.249.55.199 (92.249.55.199): 64 hops max, 52 byte packets
2 [] 91.220.194.140 9.425 ms
3 [AS21215] 185.81.60.53 22.125 ms
4 *
5 [AS51859] 185.29.100.36 11.999 ms
6 [AS51859] 91.222.7.75 12.798 ms
7 [AS51859] 92.249.55.199 14.444 ms
Measurement taken from IPinfo ProbeNet in Ljubljana, SI
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 AS51859 at robtex.

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