Is this CoreESIM plan, specifically for Panama, also valid for neighboring Costa Rica or Colombia?

The CoreESIM plan for Panama is exclusively provisioned for network access within Panama's national borders. This is an important distinction for travelers exploring Central and South America. If your itinerary includes travel from Panama to Costa Rica (e.g., the Bocas del Toro region) or flying to Colombia (e.g., Medellín or Bogotá), your data connectivity will cease at the border. For continuous regional travel, CoreESIM recommends a specific multi-country Latin America eSIM or individual country-specific eSIMs for each destination.