| ✅ | IANA Timezone Database (zone.tab, legacy) | Legacy zone.tab maps Europe/Simferopol to 'UA'. Older format only supports one country code per zone. |
| ✅ | Google libaddressinput | Google's address validation library (615 stars). Classifies Crimean addresses under UA (Ukraine). Powers address forms in Android apps and Chrome autofill. |
| ✅ | OurAirports (SIP/Simferopol) | Simferopol International Airport: ICAO=UKFF (UK=Ukraine prefix), IATA=SIP, country=UA, region=UA-43. Alt ICAO: URFF (UR=Russia). Primary code is Ukrainian; Russian code listed as alternate. |
| ✅ | Cloudflare CDN | Classifies Crimea as country=UA, subdivision=UA-43. Affects ~20% of all websites. WAF RU-block does NOT capture Crimea. Crimean users appear as Ukrainian. |
| ✅ | Domain TLD (.crimea.ua/.crimea.ru) | .crimea.ua EXISTS and is active/registrable. .crimea.ru does NOT exist. DNS hierarchy recognizes Crimea under Ukraine TLD. |
| ✅ | Vodafone Ukraine | Vodafone Ukraine lists Crimea in its coverage map as part of Ukraine. Service unavailable in occupied Crimea since 2014 (network taken over by Russian operators). |
| ✅ | Kyivstar | Ukrainian mobile operator. Lists Crimea as part of Ukraine. Service disconnected in occupied territory. +380 numbers no longer route to Crimea. |
| ❌ | moment-timezone (npm) | Issue #954 requested dissociating Europe/Simferopol from RU. Closed without change. Maintainer: 'We directly consume IANA data. No extra decision layer.' ~12M weekly npm downloads. |
| ❌ | libphonenumber-js (npm) | Reimplementation of Google libphonenumber. +7-365/978 (Crimean) numbers parsed as RU. ~13.6M weekly npm downloads. Combined with google-libphonenumber wrapper (~1.6M/wk), total phone number library impact is ~15.2M weekly downloads. |
| ❌ | Postal code databases (Russian Post) | Russia assigned postal codes 295000-299999 to Crimea post-2014. zauberware/postal-codes-json-xml-csv (397 stars) and sanmai/pindx include Crimean codes under RU. |
| ⚠️ | IANA Timezone Database (zone1970.tab) | Europe/Simferopol mapped to country codes: 'RU,UA'. In zone1970.tab format, 'RU,UA' means both countries claim the zone. Russia is listed FIRST. The older zone.tab lists only 'UA'. |
| ⚠️ | Google libphonenumber | Crimean phones classified under BOTH countries. Under Russia (+7): 2 entries (e.g., 736|Simferopol). Under Ukraine (+380): 3 entries (e.g., 38065|Crimea). Carrier data lists 4 operators for +7-978 (Crimean mobile): Elemte-Invest, K-Telecom Ltd, MTS, Sevastopol TELECOM. |
| ⚠️ | Domain TLD (.ru/.ua) | crimea.ru resolves (78.110.50.145). crimea.ua resolves (5.9.228.67). Both ccTLDs are active for Crimea-related domains. simferopol.ru resolves; simferopol.ua does not. Russian registrars readily serve Crimean entities; Ukrainian .ua registration requires Ukrainian legal entity status, effectively excluding occupied territory. |
| ⚠️ | Akamai CDN | Proprietary EdgeScape geolocation. No public Crimea docs. Likely UA based on industry norms but unconfirmed. |
| ⚠️ | Deezer | French streaming service. Suspended new subscriptions in Russia 2022. Crimea availability unclear. Uses ISO country codes. |
| ⚠️ | SWIFT | SWIFT codes: Crimean banks operate under Russian banking system (CBR) since 2014. Ukrainian bank codes no longer functional in Crimea. Similar to phone number routing — de facto Russian. |
| ⚠️ | Coursera | Country selection uses ISO 3166-1. Available in Ukraine. Russia access restricted for some courses. Crimea depends on IP geolocation. |
| ⚠️ | Duolingo | Available in both Russia and Ukraine. Country selection for profile uses ISO 3166-1. No separate Crimea option. |
| ⚠️ | Google Play Store | Country/region for developers and users follows Google account settings. Crimean users with MaxMind UA IP appear as Ukrainian users. Some Russia-restricted apps may be accessible. |
| ⚠️ | Indeed | Job search. Country filter uses ISO 3166-1. Jobs in Crimea could appear under either Ukraine or Russia depending on employer listing. |
| ⚠️ | Glassdoor | Company reviews. Location field depends on employer input. Crimean companies may list under either country. |
| ⚠️ | NordVPN | VPN provider. Has servers in Ukraine but not in Crimea or Russia. Crimean users connecting via UA server appear as Ukrainian. Lithuanian company. |
| 🚫 | Spotify | Exited Russia April 2022. Crimea included in the exit. No separate Crimea region in Spotify's country list. |
| 🚫 | Netflix | Exited Russia March 2022. Crimea included. No content available. Previously listed under Russia region. |
| 🚫 | Amazon Prime Video | Amazon does not operate in Russia. AWS restricted in Crimea under OFAC sanctions. Prime Video unavailable. |
| 🚫 | Disney+ | Never launched in Russia. Crimea inaccessible. Service unavailable. |
| 🚫 | Apple Music | Apple ceased operations in Russia March 2022. Apple Music, App Store unavailable. Crimea included in block. |
| 🚫 | Uber | Sold Russian operations to Yandex in 2018. No Uber service in Crimea. Region served by Yandex.Taxi (Russian). |
| 🚫 | eBay | Blocked sellers and buyers in Russia/Crimea since 2022. OFAC sanctions compliance. |
| 🚫 | Etsy | Suspended accounts in Russia including Crimea in 2022. Sanctions compliance. |
| 🚫 | UPS | UPS suspended services to Russia including Crimea in 2022. Cannot ship to Crimean addresses. |
| 🚫 | FedEx | FedEx suspended services to Russia and Ukraine conflict zones. Crimea included in restrictions. |
| 🚫 | DHL | DHL suspended deliveries to/from Russia in 2022. Crimea included. |
| 🚫 | PayPal | PayPal never operated in Russia. Crimea blocked under OFAC sanctions. No service available. |
| 🚫 | Visa / Mastercard | Visa and Mastercard suspended operations in Russia March 2022. Cards issued by Russian banks no longer work internationally. Crimea affected. |
| 🚫 | Apple App Store | Apple ceased Russia operations March 2022. App Store unavailable. Crimea included in block. |
| 🚫 | AWS (Amazon Web Services) | AWS restricted in Crimea under OFAC sanctions. Cannot create accounts or provision resources from Crimean IPs. |
| 🚫 | Microsoft Azure | Azure restricted in Russia and Crimea. Microsoft suspended new sales March 2022. |
| 🚫 | Google Cloud | GCP has no Russia region. Services restricted in Crimea under sanctions. |
| 🚫 | Uber Eats | Not available in Russia or Crimea. Uber sold Russian operations to Yandex. |
| 🚫 | Glovo | Glovo operated in Ukraine but exited Russia. Not available in Crimea. |
| 🚫 | Binance | Binance exited Russia entirely in 2024 (sold to CommEX). Crimea explicitly blocked under sanctions since 2022. KYC requires country verification. |
| 🚫 | Coinbase | US-based. Crimea blocked under OFAC sanctions. Cannot create accounts from Crimean IPs or with Crimean addresses. |
| 🚫 | GoDaddy | US domain registrar. Cannot register domains with Crimean addresses under OFAC sanctions. .ua and .ru TLDs handled by respective country registrars. |
| 🚫 | Namecheap | Suspended all services for Russian-registered users in March 2022. Crimea included. Ukrainian-founded company. |
| ➖ | Yelp | Yelp does not operate in Ukraine or Russia. No Crimea listings. |