AS number 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 863
Number of IPv4 9,984
Number of IPv6 673,439,381,371,246,869,545,123,577,856
ASN type Hosting
Registry ripe
Allocated 15 years ago on Nov 17, 2010
Updated a month ago on Oct 21, 2025

IP Ranges

Netblock Company Num of IPs
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
92.249.53.0/24 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 863 domain names hosted across 238 IP addresses on this ASN.

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IP Address Domain Domains on this IP
87.237.203.194 ██████████ 243
87.237.200.6 ██████████ 63
188.93.122.55 ██████████ 40
185.29.102.100 ██████████ 17
185.29.100.194 ██████████ 17
91.222.6.103 ██████████ 17
185.29.102.14 ██████████ 16
185.29.102.213 ██████████ 12
185.29.102.80 ██████████ 10
185.29.102.75 ██████████ 10

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Peers

There are 8 peers for this ASN.

Peers Name
AS13004 Serbian Open Exchange DOO
AS15958 CETINdoo-NET
AS211877 TurkIX Communications Ltd.
AS21215 UNITED GROUP NETWORK INFRASTRUCTURE d.o.o. Beograd
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

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

IP Address ASN Details
91.222.5.248 AS51859 Mainstream doo Beograd 0.54ms from Belgrade, RS
188.93.120.1 AS51859 Mainstream doo Beograd 0.42ms from Belgrade, RS
188.93.122.116 AS51859 Mainstream doo Beograd 0.61ms from Belgrade, RS
91.185.218.46 AS51859 Mainstream doo Beograd 0.69ms from Ljubljana, SI
87.237.204.121 AS51859 Mainstream doo Beograd 0.56ms from Belgrade, RS
188.93.121.10 AS51859 Mainstream doo Beograd 0.47ms from Belgrade, RS
87.237.203.169 AS51859 Mainstream doo Beograd 0.39ms from Belgrade, RS
91.222.4.65 AS51859 Mainstream doo Beograd 0.41ms from Belgrade, RS
87.237.202.211 AS51859 Mainstream doo Beograd 0.43ms from Belgrade, RS
87.237.205.62 AS51859 Mainstream doo Beograd 1.02ms from Belgrade, RS
185.29.103.195 AS51859 Mainstream doo Beograd 0.43ms from Belgrade, RS
91.214.200.0 AS51859 Mainstream doo Beograd 3.96ms from Belgrade, RS
91.222.6.185 AS51859 Mainstream doo Beograd 0.65ms from Belgrade, RS
185.167.144.77 AS51859 Mainstream doo Beograd 0.56ms from Sofia, BG
185.29.100.203 AS51859 Mainstream doo Beograd 0.48ms from Belgrade, RS
188.93.123.51 AS51859 Mainstream doo Beograd 0.56ms from Belgrade, RS
185.167.147.32 AS51859 Mainstream doo Beograd 0.62ms from Sofia, BG
2a04:2e40:300::eeee:1 AS51859 Mainstream doo Beograd 0.86ms from Belgrade, RS
87.237.207.251 AS51859 Mainstream doo Beograd 0.52ms from Belgrade, RS
2a04:2e40:4301::12 AS51859 Mainstream doo Beograd 0.95ms from Belgrade, RS
212.72.214.193 AS51859 Mainstream doo Beograd 0.67ms from Sofia, BG
87.237.201.133 AS51859 Mainstream doo Beograd 0.43ms from Belgrade, RS
2a04:2e40:4202::1 AS51859 Mainstream doo Beograd 0.97ms from Belgrade, RS
185.168.19.27 AS51859 Mainstream doo Beograd 0.51ms from Belgrade, RS
213.91.181.9 AS51859 Mainstream doo Beograd 0.67ms from Sofia, BG

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
207.29.225.3 AS398025 Cumberland Connect 8.88ms from Atlanta, US
171.98.216.99 AS17552 True Online 3.19ms from Bangkok, TH
50.66.139.99 AS6327 Shaw Communications 4.22ms from Calgary, CA
113.246.57.3 AS4134 CHINANET-BACKBONE 1.90ms from Changsha, CN
20.174.212.3 AS8075 Microsoft Corporation 0.97ms from Dubai, AE
172.205.22.195 AS8075 Microsoft Corporation 0.13ms from Dublin, IE
45.132.64.3 AS12293 Xvid Services OU 0.37ms from Frankfurt am Main, DE
51.91.195.147 AS16276 OVH SAS 2.78ms from Frankfurt am Main, DE
93.234.138.19 AS3320 Deutsche Telekom AG 8.08ms from Frankfurt am Main, DE
93.222.85.19 AS3320 Deutsche Telekom AG 3.75ms from Frankfurt am Main, DE
34.99.228.83 AS396982 Google LLC 1.58ms from Frankfurt am Main, DE
116.199.12.67 AS17622 China Unicom Guangzhou network 2.62ms from Guangzhou, CN
95.119.185.195 AS6805 Telefonica Germany GmbH & Co.OHG 2.39ms from Hamburg, DE
184.98.201.131 AS209 CenturyLink Communications, LLC 1.29ms from Phoenix, US
95.230.129.35 AS3269 Telecom Italia S.p.A. 3.98ms from Rome, IT
189.169.165.211 AS8151 UNINET 5.78ms from Santiago de Queretaro, MX
179.34.85.211 AS26615 TIM S/A 2.85ms from Sao Paulo, BR
210.138.88.3 AS2497 Internet Initiative Japan Inc. 1.84ms from Tokyo, JP
89.35.62.3 AS15704 XTRA TELECOM S.A. 4.37ms from Valencia, ES
107.189.13.115 AS53667 FranTech Solutions 1.64ms from Zuerich, CH
69.138.234.83 AS7922 Comcast Cable Communications, LLC 4.93ms from Ashburn, US
107.5.203.99 AS7922 Comcast Cable Communications, LLC 11.72ms from Flint, US
95.100.166.243 AS16625 Akamai Technologies, Inc. 0.26ms from Manchester, GB
142.196.8.83 AS33363 Charter Communications, Inc 6.68ms from Orlando, US
61.125.155.3 AS9351 ZTV CO.,LTD 3.24ms from Osaka, JP

Traceroute

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

$
traceroute -a -n -q1 91.222.5.254
traceroute to 91.222.5.254 (91.222.5.254): 64 hops max, 52 byte packets
1 [AS9009] 152.89.160.37 0.848 ms
2 *
3 [] 37.120.128.190 0.23 ms
4 [] 185.1.27.37 3.152 ms
7 [AS51859] 91.222.7.76 0.888 ms
8 [AS51859] 91.222.5.254 1.668 ms
Measurement taken from IPinfo ProbeNet in Belgrade, RS
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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