diff --git a/PhoneNumberKit/PartialFormatter.swift b/PhoneNumberKit/PartialFormatter.swift
index fe48e5722..28f2d8d2c 100644
--- a/PhoneNumberKit/PartialFormatter.swift
+++ b/PhoneNumberKit/PartialFormatter.swift
@@ -61,7 +61,7 @@ public final class PartialFormatter {
     func updateMetadataForDefaultRegion() {
         guard let metadataManager else { return }
         if let regionMetadata = metadataManager.filterTerritories(byCountry: defaultRegion) {
-            self.defaultMetadata = metadataManager.mainTerritory(forCode: regionMetadata.countryCode)
+            self.defaultMetadata = regionMetadata
         } else {
             self.defaultMetadata = nil
         }
@@ -80,15 +80,12 @@ public final class PartialFormatter {
     public var currentRegion: String {
         if ignoreIntlNumbers, currentMetadata?.codeID == "001" {
             return defaultRegion
+        } else if self.phoneNumberKit.countryCode(for: self.defaultRegion) != 1 {
+            return currentMetadata?.codeID ?? "US"
         } else {
-            let countryCode = self.phoneNumberKit.countryCode(for: self.defaultRegion)
-            if countryCode != 1, countryCode != 7 {
-                return currentMetadata?.codeID ?? "US"
-            } else {
-                return self.currentMetadata?.countryCode == 1 || self.currentMetadata?.countryCode == 7
-                    ? self.defaultRegion
-                    : self.currentMetadata?.codeID ?? self.defaultRegion
-            }
+            return self.currentMetadata?.countryCode == 1 ?
+                self.defaultRegion :
+                self.currentMetadata?.codeID ?? self.defaultRegion
         }
     }
 
@@ -305,7 +302,10 @@ public final class PartialFormatter {
         var tempPossibleFormats = [MetadataPhoneNumberFormat]()
         var possibleFormats = [MetadataPhoneNumberFormat]()
         if let metadata = currentMetadata {
-            let formatList = metadata.numberFormats
+            var formatList = metadata.numberFormats
+            if formatList.isEmpty {
+                formatList = metadataManager?.mainTerritory(forCode: metadata.countryCode)?.numberFormats ?? []
+            }
             for format in formatList {
                 if self.isFormatEligible(format) {
                     tempPossibleFormats.append(format)
diff --git a/PhoneNumberKitTests/PartialFormatterTests.swift b/PhoneNumberKitTests/PartialFormatterTests.swift
index 0ba472c2c..63241c66d 100644
--- a/PhoneNumberKitTests/PartialFormatterTests.swift
+++ b/PhoneNumberKitTests/PartialFormatterTests.swift
@@ -292,6 +292,33 @@ final class PartialFormatterTests: XCTestCase {
         XCTAssertEqual(partialFormatter.formatPartial(testNumber), "(314) 852-5477")
     }
 
+    // Issue: https://github.com/marmelroy/PhoneNumberKit/issues/602
+    // Input: 4372234563
+    // Expected result: https://libphonenumber.appspot.com/phonenumberparser?number=4372234563&country=CA
+    func testCANumber() {
+        let partialFormatter = PartialFormatter(phoneNumberKit: phoneNumberKit, defaultRegion: "CA")
+        var testNumber = "4"
+        XCTAssertEqual(partialFormatter.formatPartial(testNumber), "4")
+        testNumber = "43"
+        XCTAssertEqual(partialFormatter.formatPartial(testNumber), "43")
+        testNumber = "437"
+        XCTAssertEqual(partialFormatter.formatPartial(testNumber), "437")
+        testNumber = "4372"
+        XCTAssertEqual(partialFormatter.formatPartial(testNumber), "437-2")
+        testNumber = "43722"
+        XCTAssertEqual(partialFormatter.formatPartial(testNumber), "437-22")
+        testNumber = "437223"
+        XCTAssertEqual(partialFormatter.formatPartial(testNumber), "437-223")
+        testNumber = "4372234"
+        XCTAssertEqual(partialFormatter.formatPartial(testNumber), "437-2234")
+        testNumber = "43722345"
+        XCTAssertEqual(partialFormatter.formatPartial(testNumber), "(437) 223-45")
+        testNumber = "437223456"
+        XCTAssertEqual(partialFormatter.formatPartial(testNumber), "(437) 223-456")
+        testNumber = "4372234563"
+        XCTAssertEqual(partialFormatter.formatPartial(testNumber), "(437) 223-4563")
+    }
+
     // 07739555555
     func testUKMobileNumber() {
         let partialFormatter = PartialFormatter(phoneNumberKit: phoneNumberKit, defaultRegion: "GB")
@@ -653,5 +680,17 @@ final class PartialFormatterTests: XCTestCase {
         testNumber = "121;4"
         XCTAssertEqual(partialFormatter.formatPartial(testNumber), "121;4")
     }
+
+    func testMinimalRUNumberFromESRegion() {
+        let partialFormatter = PartialFormatter(phoneNumberKit: phoneNumberKit, defaultRegion: "ES")
+        _ = partialFormatter.formatPartial("+7")
+        XCTAssertEqual(partialFormatter.currentRegion, "RU")
+    }
+
+    func testMinimalRUNumberFromUSRegion() {
+        let partialFormatter = PartialFormatter(phoneNumberKit: phoneNumberKit, defaultRegion: "US")
+        _ = partialFormatter.formatPartial("+7")
+        XCTAssertEqual(partialFormatter.currentRegion, "RU")
+    }
 }
 #endif