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 864
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 864 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
185.29.100.194 ██████████ 17
185.29.102.100 ███████ 17
91.222.6.103 ██████████ 17
185.29.102.14 ██████████ 16
185.29.102.213 ██████████ 12
185.167.146.179 █████ 11
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
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
212.72.214.193 AS51859 Mainstream doo Beograd 0.72ms from Sofia, BG
188.93.120.1 AS51859 Mainstream doo Beograd 0.43ms from Belgrade, RS
91.185.218.80 AS51859 Mainstream doo Beograd 0.68ms from Ljubljana, SI
91.222.6.185 AS51859 Mainstream doo Beograd 0.66ms from Belgrade, RS
188.93.123.120 AS51859 Mainstream doo Beograd 0.58ms from Belgrade, RS
188.93.121.11 AS51859 Mainstream doo Beograd 0.47ms from Belgrade, RS
87.237.202.211 AS51859 Mainstream doo Beograd 0.46ms from Belgrade, RS
91.185.219.16 AS51859 Mainstream doo Beograd 0.68ms from Ljubljana, SI
185.167.144.77 AS51859 Mainstream doo Beograd 0.55ms from Sofia, BG
92.249.55.146 AS51859 Mainstream doo Beograd 0.36ms from Belgrade, RS
91.222.4.65 AS51859 Mainstream doo Beograd 0.42ms from Belgrade, RS
87.237.205.26 AS51859 Mainstream doo Beograd 1.03ms from Belgrade, RS
185.29.102.186 AS51859 Mainstream doo Beograd 0.46ms from Belgrade, RS
91.185.199.47 AS51859 Mainstream doo Beograd 0.64ms from Ljubljana, SI
213.91.181.124 AS51859 Mainstream doo Beograd 0.70ms from Sofia, BG
87.237.206.238 AS51859 Mainstream doo Beograd 0.41ms from Belgrade, RS
91.214.200.0 AS51859 Mainstream doo Beograd 4.01ms from Belgrade, RS
2a04:2e40:4202::1 AS51859 Mainstream doo Beograd 1.09ms from Belgrade, RS
91.222.7.253 AS51859 Mainstream doo Beograd 0.55ms from Belgrade, RS
87.237.203.181 AS51859 Mainstream doo Beograd 0.42ms from Belgrade, RS
2a04:2e40:4301::11 AS51859 Mainstream doo Beograd 0.87ms from Belgrade, RS
87.237.207.251 AS51859 Mainstream doo Beograd 0.49ms from Belgrade, RS
87.237.204.122 AS51859 Mainstream doo Beograd 0.52ms from Belgrade, RS
185.167.147.32 AS51859 Mainstream doo Beograd 0.59ms from Sofia, BG
2a04:2e40:300::eeee:1 AS51859 Mainstream doo Beograd 0.95ms 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
107.180.169.3 AS400072 THUNDERBOX INC 2.31ms from Ashburn, US
181.123.57.243 AS23201 Telecel S.A. 8.53ms from Asuncion, PY
186.30.92.51 AS19429 ETB - Colombia 0.70ms from Bogota, CO
102.188.254.35 AS24835 Vodafone Data 11.82ms from Cairo, EG
223.83.51.147 AS56045 China Mobile communications corporation 13.01ms from Changsha, CN
75.191.208.35 AS11426 Charter Communications Inc 16.73ms from Charlotte, US
123.26.1.99 AS45899 VNPT Corp 5.57ms from Da Nang, VN
84.143.94.3 AS3320 Deutsche Telekom AG 4.33ms from Duesseldorf, DE
60.12.126.211 AS4837 CHINA UNICOM China169 Backbone 7.01ms from Hangzhou, CN
119.247.139.179 AS9269 Hong Kong Broadband Network Ltd. 1.39ms from Hong Kong, HK
103.228.25.3 AS59280 PT. Kaili Global 0.47ms from Jakarta, ID
86.168.82.243 AS2856 British Telecommunications PLC 6.86ms from London, GB
31.185.54.179 AS6871 Plusnet 6.87ms from London, GB
131.215.220.3 AS31 California Institute of Technology 0.79ms from Los Angeles, US
87.148.57.147 AS3320 Deutsche Telekom AG 6.13ms from Nuernberg, DE
67.59.85.3 AS397422 MINET 2.31ms from Portland, US
3.212.142.227 AS14618 Amazon.com, Inc. 0.22ms from Reston, US
187.131.67.99 AS8151 UNINET 3.72ms from Santiago de Queretaro, MX
221.44.131.3 AS17676 SoftBank Corp. 3.72ms from Tokyo, JP
110.66.166.227 AS2527 Sony Network Communications Inc. 2.05ms from Tokyo, JP
190.136.148.35 AS7303 Telecom Argentina S.A. 4.68ms from Buenos Aires, AR
24.13.26.51 AS7922 Comcast Cable Communications, LLC 4.92ms from Chicago, US
3.139.80.227 AS16509 Amazon.com, Inc. 0.15ms from Columbus, US
47.96.4.227 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 3.79ms from Hangzhou, CN
60.22.144.243 AS4837 CHINA UNICOM China169 Backbone 9.69ms from Liaoyang, CN

Traceroute

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

$
traceroute -a -n -q1 91.222.4.19
traceroute to 91.222.4.19 (91.222.4.19): 64 hops max, 52 byte packets
1 [AS9009] 152.89.160.37 0.489 ms
2 *
3 [] 37.120.128.190 6.056 ms
4 [] 185.1.27.37 2.849 ms
5 [AS51859] 91.222.4.19 1.035 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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