| Ukraine | UKR | FREEPHONE, GEOGRAPHIC | 255 | — | BINOTEL Limited Liability Company |
| Ukraine | UKR | FREEPHONE, GEOGRAPHIC, WIRELESS_GEOGRAPHIC | 255 | — | DATAGROUP Private Joint Stock Company |
| Ukraine | UKR | FREEPHONE, GEOGRAPHIC | 255 | — | FARLEP-INVEST Private Joint Stock Company |
| Ukraine | UKR | FREEPHONE, GEOGRAPHIC | 255 | — | International Telecommunications Limited Liability Company |
| Ukraine | UKR | FREEPHONE, GEOGRAPHIC | 255 | — | KOLLSAP UKRAINE Limited Liability Company |
| Ukraine | UKR | FREEPHONE, GEOGRAPHIC | 255 | — | KYIVSTAR Private Joint Stock Company |
| Ukraine | UKR | FREEPHONE, GEOGRAPHIC | 255 | — | Lifecell Limited Liability Company |
| Ukraine | UKR | FREEPHONE, GEOGRAPHIC, WIRELESS_GEOGRAPHIC | 255 | — | MAXNET Limited Liability Company |
| Ukraine | UKR | FREEPHONE, GEOGRAPHIC | 255 | — | MITI Limited Liability Company |
| Ukraine | UKR | FREEPHONE, GEOGRAPHIC, IPRS | 255 | — | Microcom Limited Liability Company |
| Ukraine | UKR | FREEPHONE, GEOGRAPHIC | 255 | — | Municipal enterprise CITY INFORMATION CENTER |
| Ukraine | UKR | FREEPHONE, GEOGRAPHIC | 255 | — | O-2 Limited Liability Company |
| Ukraine | UKR | FREEPHONE, GEOGRAPHIC | 255 | — | Private Joint Stock Company VF UKRAINE |
| Ukraine | UKR | FREEPHONE, GEOGRAPHIC, IPRS, WIRELESS_GEOGRAPHIC | 255 | — | TR COMMUNICATION Limited Liability Company |
| Ukraine | UKR | FREEPHONE, GEOGRAPHIC, IPRS, WIRELESS_GEOGRAPHIC | 255 | 11 | TR COMMUNICATION Limited Liability Company |
| Ukraine | UKR | FREEPHONE, GEOGRAPHIC, IPRS, WIRELESS_GEOGRAPHIC | 255 | — | Ukrtelecom Public Joint Stock Company |
| Ukraine | UKR | FREEPHONE, GEOGRAPHIC, IPRS, WIRELESS_GEOGRAPHIC | 255 | 08 | Ukrtelecom Public Joint Stock Company |
| Ukraine | UKR | FREEPHONE, GEOGRAPHIC | 255 | — | VANVOIPLENET Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | AFINA Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | ALCHEV COKE-CHEMICAL PLANT PUBLIC JOINT STOCK COMPANY |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | ALCHEV METALLURGICAL PLANT PUBLIC JOINT STOCK COMPANY |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | ALMAZ TELECOM Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | AMIK Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | ANLIMITED TELECOM Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | ARKADA-X Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | ASTARTA-COMMUNICATION Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | ATLANTIS TELECOM Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Artemvugol State Enterprise |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | BAZIS Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | BSG TELECOM Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | BYTE Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Berdyanskbud Private Joint Stock Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Boryspil International Airport State Enterprise |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | CENTER OF GLOBAL MESSAGES UKRAINE Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | CHEREDA TELECOMMUNICATION COMPANY LIMITED LIABILITY COMPANY |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | CHERNIGIVOBLENERGO Public Joint Stock Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | COMPATEL UKRAINE Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Center-Donbass Telephone Company Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Chornobaivka Svyaz Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Communal enterprise SS Prokofiev Donetsk International Airport |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Complex of Gas Turbine Construction Zorya |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Construction and assembly enterprise VOLSBUD LLC |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Consumer Society City Information Systems |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Cooperative Radio Technician |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | DATA-EXPRESS TELEPHONE COMPANY LIMITED LIABILITY COMPANY |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | DATALINE Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | DISITEL Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | DONETSKSTAL PRIVATE JOINT STOCK COMPANY - METALLURGICAL PLANT |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | DTEK ROVENKIANTHRACYT Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | DTEK SKHIDENERGO Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | DTEK SVERDLOVANTRACIT Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | DonbassInformCommunicationService Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | ENERGY TELECOM Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | EUROTRANSTELECOM Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | FARLEP-DON TECHNOLOGICAL COMMUNICATION Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | FTICOM Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Galintel Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | HIPTEL Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | HYSELL Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | INFO COMMUNICATION Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | INFOMIR Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | INTEL-COM Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | INTERPIPE NIZHNODNIPROVSKY PIPE ROLLING PLANT |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | IPITEL Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | ITER COM Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | ITI SOFTWARE SOLUTIONS Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Joint-Stock Company Ukrainian Railway |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | KARPATNAFTOKHIM Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | KDZ Private Joint Stock Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | KOSMONOVA Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | KYIV REGION-TELECOM Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Khartsyzsk Pipe Plant Open Joint-Stock Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Kotov Alexander Mikhailovich |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Krasnoarmeyskugol State Enterprise |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Kyivteleservice Specialized Utility Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | LEKOL Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | LID-SERVICE Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | LINCOM-3000 Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Limited Liability Company - INFOCOM FIRM |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Limited Liability Company BI TI SI |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Limited Liability Company LOCALKA |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Limited Liability Company PO TK-Donbass |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Limited Liability Company TELEMIST 2012 |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Lugansk Telephone Company Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Lviv City Utility Company LVIVTEPLOENERGO |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Lviv Municipal Enterprise City Center of Information Technologies |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Lviv Polytechnic National University |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Lviv State Enterprise Danylo Halytsky International Airport LVIV |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Lvivugol State Enterprise |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Lysychansk Oil Investment Company Private Joint-Stock Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Lysychansky Proletary Glassworks Public Joint Stock Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | M-TEL Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | MALS Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | MIRATEL Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | MOBICOM Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | MOTOR SICH Public Joint Stock Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Manufactured Goods Market Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Megatelecom Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | National Atomic Energy Generating Company Energoatom |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | NordTelecom Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | OMEGA-GROUP Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Odessa Joint-Stock Plant Public Joint-Stock Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Orbita Research and Production Enterprise |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | POLLICOMM LTD Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | PREMIORI Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | PRIKARPATTYAOBLENERGO Private Joint-Stock Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | PRIVATE JOINT STOCK COMPANY CONCERN-ELECTRON |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | PRIVATE JOINT STOCK COMPANY DOKUCHAYEVSKY FLUSOR-DOLOMITE PLANT |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | PRIVATE JOINT STOCK COMPANY NORTH DONETSK ASSOCIATION NITROGEN |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | PUBLIC JOINT STOCK COMPANY KRYUKIV WAGON BUILDING PLANT |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | PUBLIC JOINT STOCK COMPANY KRYVORIZHZY IRON ORE PLANT |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Pavlograd Chemical Plant |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Poltava Turbomechanical Plant Private Joint-Stock Company |
| Ukraine | UKR | GEOGRAPHIC, IPRS | 255 | — | Private Joint Stock Company TELESYSTEMS UKRAINE |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Private Joint-Stock Company Poltava Mining and Processing Plant |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Private enterprise BTM |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Private enterprise Communication |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Private enterprise ELS TELECOM |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Private enterprise EXS |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Private enterprise Pluton-SV |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Private enterprise Wild Garden |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Promtelecom Public Joint Stock Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Prykarpattya Production Communication Enterprise |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Quartz Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | RIKA Svyazokservis Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | RIVNEPROMZVYAZOK Additional Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | SINENERGY Research and Production Enterprise |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | SIPCOM Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | SKYTEL YUA Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | SMARTER SERVICE Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | SOFTLINE MOBILE SYSTEMS Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | SONIKA Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | SPECTR Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | SPIDNET Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | SPRING PBX-1 Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | STAKHANOVSKY KNOT OF PRODUCTION AND TECHNOLOGICAL COMMUNICATION |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | STORM-TEL Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | SUMY TELECOMSYSTEMS Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | SUMYKHIMPROM PUBLIC JOINT STOCK COMPANY |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Silver Telecom Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Sitel Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Skyline Telecom Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Solver Research and Production Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Sonico-Svyaz Television and Radio Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Southern Mining and Processing Plant Public Joint Stock Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | State Enterprise ADMINISTRATION OF SEA PORTS OF UKRAINE |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | State Enterprise LUGANSKUGULYA |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | State Enterprise PERVOMAYSKVUGILLYA |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | State Enterprise Promspetsvyaz |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | State Enterprise Ukrspetsvyaz |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | State Enterprise VO Malyshev Plant |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | State Enterprise for Air Traffic Services of Ukraine |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | State Specialized Enterprise for Radioactive Waste Management |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Svyazokbudservis Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | TASCO Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | TECHNICAL CENTER OF RADIO SYSTEMS Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | TELESYSTEMY UKRAYI Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | TELNET Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | TELZA Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | TENET Research and Production Enterprise |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | TEST Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Taras Shevchenko National University of Kyiv |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Telecommunication Company Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Trifle Research and Production Enterprise |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | UKRCHERMETAVTOMATIKA Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | UKRCOM Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | UKRTATNAFTA OIL COMPANY |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | UKRTRANSGAZ Public Joint Stock Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | USTK Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | UTIM LIMITED LIABILITY COMPANY |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | UTL Telephone Company Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Ukrainian Innovative Telecommunications Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Ukrainian-American-Swiss Limited Liability Company KANCOM |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Ukrtransnafta Joint Stock Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | VAK Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | VEKO Collective Telephone Company Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | VELTON.Telecom Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | VOLZ Research and Production Firm Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Vinteleport Telecommunication Company Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | WORLD SERVICE Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Western European Telecommunications Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | ZORYA RESEARCH AND PRODUCTION ENTERPRISE |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | ZVYAZOKSERVIS Limited Liability Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Zaporizhzhya Automobile Plant Public Joint Stock Company |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Zhukovsky National Aerospace University |
| Ukraine | UKR | GEOGRAPHIC | 255 | — | Zoryan Telecommunication Systems Limited Liability Company |
| Ukraine | UKR | IPRS | 255 | — | EURO-INFORM Limited Liability Company |
| Ukraine | UKR | WIRELESS_GEOGRAPHIC | 255 | — | BINOTEL IT-SERVICE Limited Liability Company |
| Ukraine | UKR | MOBILE, MSRN | 255 | 01 | Vodafone Ukraine (VF/MTS) |
| Ukraine | UKR | MOBILE, WIRELESS_GEOGRAPHIC | 255 | 02 | Kyivstar |
| Ukraine | UKR | MOBILE, WIRELESS_GEOGRAPHIC | 255 | 03 | Kyivstar |
| Ukraine | UKR | MOBILE | 255 | 04 | International Telecommunications |
| Ukraine | UKR | MOBILE, MSRN | 255 | 06 | Lifecell |
| Ukraine | UKR | MOBILE | 255 | 07 | Trimob |
| Ukraine | UKR | WIRELESS_GEOGRAPHIC | 255 | 10 | ATLANTIS TELECOM |
| Ukraine | UKR | MOBILE | 255 | 21 | Telesystems of Ukraine |
| Ukraine | UKR | MOBILE | 255 | 702 | Limited Liability Company J and Y |
| Ukraine | UKR | MOBILE | 255 | 99 | Lugakom |
| Ukraine | UKR | MOBILE | 255 | 99 | Phenix |
