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 5 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 ██████████ 386
188.93.122.55 ██████████ 38
87.237.203.211 ██████████ 30
91.222.6.103 ██████████ 18
185.29.100.194 ██████████ 17
185.29.102.100 ██████████ 17
185.29.102.14 ██████████ 14
185.29.102.213 ██████ 12
185.29.102.216 ██████████ 10
185.29.102.75 ██████████ 10

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Peers

There are 7 peers for this ASN.

Peers Name
AS13004 Serbian Open Exchange DOO
AS15958 CETINdoo-NET
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 6 upstreams for this ASN.

upstreams Name
AS15958 CETINdoo-NET
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

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
87.237.206.8 AS51859 Mainstream doo Beograd 0.28ms from Belgrade, RS
87.237.204.121 AS51859 Mainstream doo Beograd 0.48ms from Belgrade, RS
91.185.218.13 AS51859 Mainstream doo Beograd 5.13ms from Vienna, AT
91.185.199.45 AS51859 Mainstream doo Beograd 5.06ms from Vienna, AT
87.237.205.62 AS51859 Mainstream doo Beograd 0.80ms from Belgrade, RS
188.93.122.104 AS51859 Mainstream doo Beograd 0.49ms from Belgrade, RS
87.237.203.90 AS51859 Mainstream doo Beograd 0.27ms from Belgrade, RS
188.93.123.187 AS51859 Mainstream doo Beograd 0.46ms from Belgrade, RS
185.29.100.235 AS51859 Mainstream doo Beograd 0.36ms from Belgrade, RS
188.93.120.1 AS51859 Mainstream doo Beograd 0.26ms from Belgrade, RS
91.214.203.1 AS51859 Mainstream doo Beograd 0.48ms from Belgrade, RS
91.222.6.254 AS51859 Mainstream doo Beograd 0.39ms from Belgrade, RS
185.167.146.194 AS51859 Mainstream doo Beograd 0.56ms from Sofia, BG
2a04:2e40:4202::1 AS51859 Mainstream doo Beograd 1.03ms from Belgrade, RS
185.167.147.32 AS51859 Mainstream doo Beograd 0.60ms from Sofia, BG
188.93.121.10 AS51859 Mainstream doo Beograd 0.40ms from Belgrade, RS
91.222.5.249 AS51859 Mainstream doo Beograd 0.46ms from Belgrade, RS
91.222.7.18 AS51859 Mainstream doo Beograd 0.41ms from Belgrade, RS
185.29.101.101 AS51859 Mainstream doo Beograd 0.31ms from Belgrade, RS
87.237.207.251 AS51859 Mainstream doo Beograd 0.47ms from Belgrade, RS
185.168.19.127 AS51859 Mainstream doo Beograd 0.48ms from Belgrade, RS
87.237.202.211 AS51859 Mainstream doo Beograd 0.28ms from Belgrade, RS
213.91.181.21 AS51859 Mainstream doo Beograd 0.59ms from Sofia, BG
185.167.144.128 AS51859 Mainstream doo Beograd 0.53ms from Sofia, BG
2a04:2e40:300::eeee:2 AS51859 Mainstream doo Beograd 0.81ms 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
173.94.207.115 AS11426 Charter Communications Inc 8.16ms from Charlotte, US
128.163.140.3 AS23162 University of Kentucky 8.49ms from Chicago, US
5.230.205.19 AS12586 GHOSTnet GmbH 0.30ms from Frankfurt am Main, DE
180.225.67.227 AS17858 LG POWERCOMM 1.39ms from Incheon, KR
89.145.66.19 AS29017 NTT Global Data Centers EMEA UK Ltd. 1.48ms from London, GB
217.179.215.3 AS5503 RM Education Ltd 0.92ms from London, GB
86.14.210.19 AS5089 Virgin Media Limited 7.33ms from Maidenhead, GB
217.255.173.19 AS3320 Deutsche Telekom AG 5.76ms from Nuernberg, DE
85.87.144.3 AS15704 XTRA TELECOM S.A. 0.67ms from Sevilla, ES
211.120.97.131 AS7516 TOHKnet Co.,Inc. 7.32ms from Tokyo, JP
31.185.93.195 AS39642 Norlys Digital A/S 1.27ms from Tønder, DK
162.33.196.3 AS397710 MiBroadband 12.01ms from Winnipeg, CA
86.92.163.243 AS1136 KPN B.V. 1.47ms from Amsterdam, NL
99.191.117.147 AS7018 AT&T Enterprises, LLC 9.43ms from Atlanta, US
65.185.33.211 AS10796 Charter Communications Inc 12.12ms from Cleveland, US
34.240.226.19 AS16509 Amazon.com, Inc. 0.20ms from Dublin, IE
185.249.111.19 AS207174 WIFIGUAY JEYCA 8.17ms from Madrid, ES
90.112.165.147 AS3215 Orange S.A. 7.96ms from Marseille, FR
46.50.207.131 AS15774 Limited Liability Company "TTK-Svyaz" 5.38ms from Novosibirsk, RU
222.121.117.99 AS4766 Korea Telecom 1.43ms from Seoul, KR
192.158.241.3 AS11179 Aryaka Networks, Inc. 0.81ms from Singapore, SG
104.21.98.51 AS13335 Cloudflare, Inc. 0.11ms from Wrocław, PL
86.98.190.115 AS5384 Emirates Internet 4.76ms from Al Fujairah City, AE
45.37.165.67 AS11426 Charter Communications Inc 10.21ms from Ashburn, US
103.225.168.3 AS9891 CS LOXINFO Public Company Limited. 0.52ms from Bangkok, TH

Traceroute

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

$
traceroute -a -n -q1 91.214.203.1
traceroute to 91.214.203.1 (91.214.203.1): 64 hops max, 52 byte packets
1 [AS42473] 217.146.8.52 0.355 ms
2 [AS42473] 94.16.12.33 0.251 ms
3 [] 185.1.27.82 0.395 ms
5 [AS51859] 91.214.203.1 0.575 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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