Iran shut down nearly all internet access on the final night of February 2026 following a joint U.S.-Israel strike, leaving only government-whitelisted users connected to the global network. The blackout created urgent questions about Nobitex, Iran's largest crypto exchange, and how it maintains operations while avoiding U.S. Office of Foreign Assets Control sanctions.

Nobitex operates in a precarious geopolitical position. Iran faces comprehensive American sanctions, yet the exchange has escaped OFAC's SDN list despite handling billions in crypto volume. The platform serves Iranian users who lack access to mainstream global exchanges like Coinbase or Binance, both of which comply strictly with U.S. sanctions regimes.

The exchange manages this balancing act through several mechanisms. Nobitex avoids direct dollar settlement, instead facilitating peer-to-peer trading and local currency on-ramps. This structure limits direct touchpoints with the U.S. financial system. The platform also restricts users from sanctioned countries and maintains compliance documentation, creating a veneer of regulatory adherence even as it operates in Iran.

However, the internet shutdown exposed vulnerabilities. With connectivity severed, Nobitex users faced complete access cuts, unable to withdraw funds or execute trades. The outage highlighted how dependent Iran's crypto infrastructure remains on global connectivity and how quickly geopolitical events can erase access.

U.S. authorities have historically tolerated exchanges operating in Iran when they avoid U.S. persons and domestic payment rails. OFAC's enforcement focuses on entities directly facilitating sanctions evasion rather than exchanges merely existing in sanctioned jurisdictions. Nobitex's survival reflects this enforcement gap.

The February shutdown also raised questions about Iran's long-term crypto strategy. A fully severed internet would cripple Nobitex and other platforms. This suggests Tehran may maintain limited external connectivity for critical infrastructure, even amid escalating tensions. For crypto users in Iran, the exchange remains essential despite constant regulatory and geopolitical risk. Nobitex's continued operation without blacklisting indicates OFAC views the exchange as peripheral enough