AS8717 — A1BG A1 Bulgaria EAD

Network type: residential

AS8717 announces 374 IPv4 prefixes covering 217,856 addresses and 183 IPv6 prefixes.

About this network

A1 Bulgaria EAD (A1BG, historically registered as SPECTRUMNET) — the fixed network of Bulgaria's A1, part of the A1 Telekom Austria Group and formerly known as Mobiltel/Mtel. Roughly a million IPv4 addresses across ~100 prefixes.

What it's used for

• Consumer broadband and cable/FTTH access. The rDNS is layered with the brands A1 absorbed on its way to becoming a fixed operator: ip-IP-ADDR.home.megalan.bg on the Megalan FTTH pools and reversed-octet names under blizoo.bg on the former Blizoo cable footprint.
• Business connectivity and hosting on the older Spectrum Net and Orbitel space (spnet.net routers and switches, orbitel.bg, ns1.a1hosting.bg).

Notable

• This is the fixed AS. A1 Bulgaria's mobile network is numbered separately, so reading this AS as a mobile carrier because of the A1 brand gets the kind wrong.
• The inventory is an acquisition archaeology: Spectrum Net (the original holder of the AS name), Orbitel, Megalan and Blizoo all still label their own former address ranges. Most of the consumer space carries no rDNS at all, which is typical for large cable pools.
• Very well connected for a national operator — hundreds of observed BGP neighbours, reflecting a mix of domestic peering and Telekom Austria Group upstreams.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 5.53.176.0/24
• 5.53.180.0/22
• 5.53.239.0/24
• 46.238.8.0/24
• 46.238.14.0/24
• 46.238.36.0/24
• 46.238.47.0/24
• 46.238.63.0/24
• 62.204.128.0/24
• 62.204.130.0/23
• 62.204.134.0/24
• 62.204.136.0/23
• 62.204.140.0/24
• 62.204.142.0/23
• 62.204.144.0/23
• 62.204.146.0/24
• 62.204.148.0/22
• 62.204.152.0/24
• 62.221.128.0/24
• 62.221.132.0/23
• 62.221.141.0/24
• 77.70.0.0/24
• 77.70.15.0/24
• 77.70.109.0/24
• 77.70.111.0/24
• 77.70.112.0/24
• 77.70.114.0/23
• 77.70.127.0/24
• 77.236.168.0/24
• 77.236.178.0/24
• 78.83.0.0/22
• 78.83.6.0/23
• 78.83.8.0/22
• 78.83.12.0/23
• 78.83.135.0/24
• 78.83.139.0/24
• 78.83.142.0/23
• 78.83.144.0/21
• 78.83.159.0/24
• 78.83.160.0/24
• 78.83.168.0/24
• 78.83.172.0/22
• 78.83.180.0/23
• 78.83.185.0/24
• 78.83.191.0/24
• 78.83.192.0/23
• 78.83.194.0/24
• 78.83.199.0/24
• 78.83.210.0/24
• 78.83.214.0/23
• 78.83.224.0/22
• 78.83.228.0/24
• 78.83.230.0/24
• 78.83.232.0/23
• 78.83.237.0/24
• 78.83.240.0/23
• 78.83.242.0/24
• 78.83.245.0/24
• 78.83.246.0/23
• 78.90.17.0/24
• 78.90.125.0/24
• 78.90.133.0/24
• 78.90.134.0/24
• 78.90.140.0/24
• 78.90.161.0/24
• 78.90.185.0/24
• 78.90.206.0/24
• 78.90.211.0/24
• 78.90.228.0/24
• 78.90.230.0/24
• 78.90.232.0/24
• 78.90.243.0/24
• 78.90.247.0/24
• 80.253.48.0/23
• 80.253.51.0/24
• 80.253.52.0/23
• 80.253.54.0/24
• 80.253.58.0/23
• 82.103.65.0/24
• 82.103.66.0/23
• 82.103.68.0/22
• 82.103.72.0/22
• 82.103.81.0/24
• 82.103.84.0/23
• 82.103.86.0/24
• 82.103.88.0/22
• 82.103.92.0/24
• 82.103.94.0/23
• 82.103.96.0/22
• 82.103.101.0/24
• 82.103.102.0/23
• 82.103.106.0/23
• 82.103.108.0/22
• 82.103.113.0/24
• 82.103.114.0/23
• 82.103.116.0/22
• 82.103.120.0/22
• 82.103.126.0/23
• 82.147.128.0/23
• 82.147.130.0/24

and 457 more.

Upstream networks

• AS3356 Level 3 Parent, LLC
• AS6461 Zayo Bandwidth
• AS1299 Arelion Sweden AB
• AS6939 Hurricane Electric LLC
• AS5405 Inter.link GmbH
• AS9002 RETN Limited
• AS34549 meerfarbig GmbH & Co. KG
• AS3303 Swisscom (Schweiz) AG
• AS8280 SYNAPSECOM S.A. Provider of Telecommunications and Internet Services
• AS213241 TECHIT.BE SRL
• AS48362 Stadtwerke Feldkirch
• AS24482 SG.GS
• AS212024 Marc Schmitt
• AS42708 Glesys Sweden AB
• AS37100 SEACOM Limited
• AS8551 Bezeq International Ltd.
• AS34019 Hivane Association
• AS208972 GIBIRNET ILETISIM HIZMETLERI SANAYI VE TICARET LIMITED SIRKETI
• AS20485 Joint Stock Company TransTeleCom
• AS6797 GlobalConnect AB
• AS37721 Virtual Technologies & Solutions
• AS8447 A1 Telekom Austria AG
• AS33891 Core-Backbone GmbH
• AS12779 IT.Gate S.p.A.
• AS8218 Zayo Infrastructure France SA

Downstream networks

• AS29580 A1 Bulgaria EAD
• AS13124 A1 Bulgaria EAD
• AS35141 A1 Bulgaria EAD
• AS12716 A1 Bulgaria EAD
• AS42794 Ultracom Ltd.
• AS39401 Link+ Ltd
• AS28949 Technical University of Sofia
• AS59484 SiS Net 05 EOOD
• AS48917 Optinet Ltd
• AS34376 Telecom Group Ltd
• AS202209 Erma Consulting Ltd.
• AS198259 ECOM SERVICE AD
• AS60092 FIXITY LLC
• AS29210 Internews 98 OOD
• AS201642 NetCom Service Ltd.
• AS41922 MIS70 LTD
• AS206346 "Pan Telecom" EOOD
• AS51660 Suvorovo NET Ltd
• AS12591 Smartcom Bulgaria AD
• AS42086 RO&NI EOOD
• AS61098 Akenes SA
• AS15504 Tiebreak Solutions Ltd.
• AS8880 Economedia AD
• AS203312 Global Pharma Centre JSC
• AS47453 ITservice 2009 LTD

Adjacent networks

• AS29580 A1 Bulgaria EAD
• AS13124 A1 Bulgaria EAD
• AS35141 A1 Bulgaria EAD
• AS6461 Zayo Bandwidth
• AS3356 Level 3 Parent, LLC
• AS1299 Arelion Sweden AB
• AS6939 Hurricane Electric LLC
• AS5405 Inter.link GmbH
• AS9002 RETN Limited
• AS12716 A1 Bulgaria EAD
• AS3303 Swisscom (Schweiz) AG
• AS34549 meerfarbig GmbH & Co. KG
• AS8280 SYNAPSECOM S.A. Provider of Telecommunications and Internet Services
• AS8447 A1 Telekom Austria AG
• AS39401 Link+ Ltd
• AS208972 GIBIRNET ILETISIM HIZMETLERI SANAYI VE TICARET LIMITED SIRKETI
• AS42794 Ultracom Ltd.
• AS42708 Glesys Sweden AB
• AS213241 TECHIT.BE SRL
• AS24482 SG.GS
• AS212024 Marc Schmitt
• AS8551 Bezeq International Ltd.
• AS17639 Converge ICT Solutions Inc.
• AS48362 Stadtwerke Feldkirch
• AS28949 Technical University of Sofia

Routing security

• RPKI: 108 valid, 0 invalid and 0 not-found announcements; 115 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 113 route objects.
• Listed in as-sets: AS-A1BG-SEC, AS-BELCLOUD, AS-BG, AS-BG, AS-BTC-UP, AS-CAMBRIUM-AMSIX-RS-DENY, AS-HURRICANEV6, AS-MANDA-DECIX-PEERS-V4, AS-MANDA-DECIX-PEERS-V6, AS-MBN, AS-MEGAPORT-RS-SOF, AS-NETERRA-INT, AS-ONEVIP-PEERING-SET, AS-PANTEL-INT, AS-PTA, AS-RETN-ACTUAL-V4, AS-RETN-ACTUAL-V6, AS-SPNET, AS-SPNETBTC, AS-TA6, AS-VARNAIX, AS-VARNAPEERS, AS1200:AS-AMS-IX-PEERS, AS200723:AS-SWU-A1, AS204464:AS-BLACKLIST.

Internet exchanges

• DE-CIX Frankfurt — Frankfurt, Germany
• NetIX — Sofia, Bulgaria
• Bulgarian Internet eXchange — Sofia, Bulgaria
• Balkan Internet Exchange — Sofia, Bulgaria
• Megaport MegaIX Sofia — Sofia, Bulgaria