| AS174 Cogent Communications, LLC | US |
| AS137409 GSL Networks Pty LTD | SG |
| AS3257 GTT Communications Inc. | US |
| AS8866 Vivacom Bulgaria EAD | BG |
| AS5511 Orange S.A. | GB |
| AS6762 TELECOM ITALIA SPARKLE S.p.A. | GR |
| AS6939 Hurricane Electric LLC | US |
| AS39184 UltraNET Ltd | BG |
| AS34224 Neterra Ltd. | BG |
| AS9070 Cooolbox AD | BG |
| AS208972 GIBIRNET ILETISIM HIZMETLERI SANAYI VE TICARET LIMITED SIRKETI | TR |
| AS57344 Telehouse EAD | BG |
| AS8717 A1 Bulgaria EAD | BG |
| AS44901 Belcloud LTD | US |
| AS58453 China Mobile International Limited | HK |
| AS61098 Akenes SA | CH |
| AS31293 ITNS GLOBAL EOOD | BG |
| AS12615 Global Communication Net Plc | BG |
| AS8860 Delta HighTech Ltd. | BG |
| AS31287 IPACCT CABLE Ltd | BG |
| AS202276 IBOSS, INC | FI |
| AS6507 Riot Games, Inc | AU |
| AS8262 Evolink EAD | BG |
| AS41313 NOVATEL EOOD | DE |
| AS204281 NETX - NG LTD | BG |
| AS42555 OPTICCOM- BULGARIA Ltd. | BG |
| AS48452 Telco power Ltd | BG |
| AS29244 CETIN Bulgaria EAD | BG |
| AS60447 I NET BULGARIA | BG |
| AS31298 Zulu Ltd. | BG |
| AS39505 VESTITEL BG | BG |
| AS44814 Bulgartel AD | BG |
| AS47872 Sofia Connect EAD | BG |
| AS203391 Cloud DNS Ltd | BG |
| AS35761 Mitko.Com Ltd. | BG |
| AS35489 Global One Ltd. | BG |
| AS42295 TBISS Ltd | BG |
| AS47697 BIX.BG Ltd. | BG |
| AS60752 AOSSIA S.A. | LU |
| AS50877 Airbeam S.r.l. | IT |
| AS34569 Vivacom Bulgaria EAD | BG |
| AS43561 Vivacom Bulgaria EAD | BG |
| AS48115 DGM EOOD | BG |
| AS50020 CETIN Bulgaria EAD | BG |
| AS210058 Amusnet Interactive Ltd | BG |
| AS15669 BIX.BG Ltd. | BG |
| AS216265 ARISTO NETWORKS LTD | NL |
| AS57463 NetIX Communications JSC | BG |
| AS199364 RAX.BG EOOD | BG |
| AS204232 ALOHA EXPERT EOOD | BG |
