CREATE TABLE table_53501 ("Location" TEXT, "Londonborough" TEXT, "Post town" TEXT, "Postcodedistrict" TEXT, "Dialcode" TEXT)

What is the Dialcode of whitechapel?
SELECT "Dialcode" FROM table_53501 WHERE "Location" = 'whitechapel'
SELECT "Dialcode" FROM "table_53501" WHERE "Location" = 'whitechapel'