AS number details

AS28949

Technical University of Sofia  ·  tu-sofia.bg

Bulgaria

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AS28949 – Technical University of Sofia

Field Value
Country Bulgaria
Website tu-sofia.bg
Hosted domains 14
Number of IPv4 4,096
Number of IPv6 0
ASN type Education
Registry ripe
Allocated 22 years ago on Apr 16, 2003
Updated 3 years ago on Jun 03, 2022

IP Ranges

Netblock Company Num of IPs
81.161.240.0/20 8, Kliment Ohridski St. 4,096
81.161.240.0/24 8, Kliment Ohridski St. 256
81.161.241.0/24 8, Kliment Ohridski St. 256
81.161.242.0/24 8, Kliment Ohridski St. 256
81.161.243.0/24 8, Kliment Ohridski St. 256
81.161.244.0/24 8, Kliment Ohridski St. 256
81.161.245.0/24 8, Kliment Ohridski St. 256
81.161.246.0/24 8, Kliment Ohridski St. 256
81.161.247.0/24 8, Kliment Ohridski St. 256
81.161.248.0/24 8, Kliment Ohridski St. 256
81.161.249.0/24 8, Kliment Ohridski St. 256
81.161.250.0/24 8, Kliment Ohridski St. 256
81.161.251.0/24 8, Kliment Ohridski St. 256
81.161.252.0/24 8, Kliment Ohridski St. 256
81.161.253.0/24 8, Kliment Ohridski St. 256
81.161.254.0/24 8, Kliment Ohridski St. 256
81.161.255.0/24 8, Kliment Ohridski St. 256

There are no known IPv6 addresses belonging to this network

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WHOIS Details

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                                                ASHandle:       AS28949
                                                OrgID:          AS28949
                                                ASName:         AS28949
                                                ASNumber:       AS28949
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
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Hosted Domains

There are 14 domain names hosted across 9 IP addresses on this ASN.

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IP Address Domain Domains on this IP
81.161.240.3 ██████████ 3
81.161.248.186 ██████████ 3
81.161.241.17 ██████████ 2
81.161.244.205 ██████████ 1
81.161.246.92 ██████████ 1
81.161.251.235 ██████████ 1
81.161.244.206 ██████████ 1
81.161.241.2 ██████████ 1
81.161.250.25 ██████████ 1

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Peers

There are 2 peers for this ASN.

Peers Name
AS6802 Bulgarian Research and Education Network Association (BREN)
AS8717 A1 Bulgaria EAD
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Upstreams

There are 2 upstreams for this ASN.

upstreams Name
AS6802 Bulgarian Research and Education Network Association (BREN)
AS8717 A1 Bulgaria EAD
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Downstreams

There are no downstreams for this ASN.

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Pingable IPs

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

IP Address ASN Details
81.161.253.1 AS28949 Technical University of Sofia 1.27ms from Sofia, BG
81.161.251.189 AS28949 Technical University of Sofia 0.69ms from Sofia, BG
81.161.248.68 AS28949 Technical University of Sofia 0.66ms from Sofia, BG
81.161.249.14 AS28949 Technical University of Sofia 0.59ms from Sofia, BG
81.161.244.134 AS28949 Technical University of Sofia 0.65ms from Sofia, BG
81.161.254.16 AS28949 Technical University of Sofia 0.57ms from Sofia, BG
81.161.241.109 AS28949 Technical University of Sofia 0.62ms from Sofia, BG
81.161.240.197 AS28949 Technical University of Sofia 0.41ms from Sofia, BG
81.161.247.143 AS28949 Technical University of Sofia 0.68ms from Sofia, BG
81.161.252.83 AS28949 Technical University of Sofia 0.59ms from Sofia, BG
81.161.243.200 AS28949 Technical University of Sofia 0.65ms from Sofia, BG
81.161.246.185 AS28949 Technical University of Sofia 0.67ms from Sofia, BG
81.161.242.94 AS28949 Technical University of Sofia 0.61ms from Sofia, BG
81.161.250.4 AS28949 Technical University of Sofia 0.68ms from Sofia, BG
81.161.245.199 AS28949 Technical University of Sofia 0.62ms 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
103.112.22.37 AS137678 Protoact Digital Network Pvt. Ltd. 0.46ms from Delhi, IN
71.237.17.229 AS7922 Comcast Cable Communications, LLC 3.35ms from Denver, US
94.197.39.69 AS206067 Hutchison 3G UK Limited 17.13ms from Dublin, IE
185.26.78.85 AS15451 DATEV eG 3.51ms from Frankfurt am Main, DE
89.202.33.5 AS15830 Equinix (EMEA) Acquisition Enterprises B.V. 0.67ms from Frankfurt am Main, DE
87.185.222.165 AS3320 Deutsche Telekom AG 7.73ms from Frankfurt am Main, DE
102.215.166.181 AS15399 Wananchi Group (Kenya) Limited 0.89ms from Kampala, UG
64.250.51.69 AS14155 Rural Telephone Service Co, Inc. 12.04ms from Kansas City, US
119.156.104.5 AS17557 Pakistan Telecommunication Company Limited 1.89ms from Lahore, PK
138.186.91.149 AS14709 Cable Onda 0.96ms from Panama, PA
188.246.119.21 AS51331 SychrovNET s.r.o 0.24ms from Prague, CZ
13.125.51.85 AS16509 Amazon.com, Inc. 0.20ms from Seoul, KR
175.122.81.21 AS9318 SK Broadband Co Ltd 7.64ms from Seoul, KR
138.75.109.37 AS4773 MobileOne Ltd. Mobile/Internet Service Provider Singapore 2.07ms from Singapore, SG
36.224.152.197 AS3462 Data Communication Business Group 1.10ms from Taipei, TW
58.157.122.37 AS17506 ARTERIA Networks Corporation 2.40ms from Tokyo, JP
91.227.61.5 AS58307 UNITEL-MEDIA Sp. z o.o. 2.14ms from Warsaw, PL
118.172.98.181 AS23969 TOT Public Company Limited 9.72ms from Bangkok, TH
201.88.239.181 AS8167 V tal 1.50ms from Brasilia, BR
41.46.150.37 AS8452 TE-AS 3.39ms from Cairo, EG
14.96.220.149 AS45820 Tata Teleservices ISP AS 0.59ms from Chennai, IN
202.191.171.165 AS9583 Sify Limited 1.18ms from Chennai, IN
141.142.21.5 AS1224 University of Illinois 3.07ms from Chicago, US
67.173.69.85 AS7922 Comcast Cable Communications, LLC 4.60ms from Chicago, US
105.244.119.21 AS36994 Vodacom 2.23ms from Johannesburg, ZA

Traceroute

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

$
traceroute -a -n -q1 -f5 81.161.251.1
traceroute to 81.161.251.1 (81.161.251.1): 64 hops max, 52 byte packets
8 [AS28949] 81.161.251.1 0.965 ms
Measurement taken from IPinfo ProbeNet in Sofia, BG
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 AS28949 at robtex.

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