| Symbol | Name | Country | Exchange |
|---|---|---|---|
| AABB | Asia Broadband Inc | US | OTC |
| AAFRF | Airtel Africa Plc | US | OTC |
| AAIRF | American Aires Inc | US | OTC |
| ABILF | Ability Inc | US | OTC |
| ABWN | Airborne Wireless Network | US | OTC |
| ACBD | Annabidiol Corp | US | OTC |
| ACDSF | Ascendas R E Inv TR | US | OTC |
| ADVOF | Adva Optical Ntwkng | US | OTC |
| AERS | Aerius Cmn Stk | US | OTC |
| AHAG | Alpha Techs Grp Inc | US | OTC |
| AITUF | Anritsu Corp [F] | US | OTC |
| AKOM | Aerkomm Inc | US | OTC |
| ALFFF | Alfa, S. A. B. de C. V | US | OTC |
| ALYI | Alternet Systems Inc | US | OTC |
| AMXVF | América Móvil, S.A.B. de C.V | US | OTC |
| ARGW | Argus Worldwide Group | US | OTC |
| ARTM | American Nortel Comm | US | OTC |
| ASEJF | Apt Satellite Hldgs | US | OTC |
| ASTO | Astro Communications Inc | US | OTC |
| ATASF | Atlantia Spa Ord | US | OTC |