The answer depends on what part of the figure is shaded!
The area of Oberhasli is 551 square kilometers.
Area code 201 and overlay area code 551 serve a portion of northern New Jersey, including Jersey City, Hackensack, Bayonne, and Hoboken.
The area of Van Don District is 551 square kilometers.
Haworth, NJ, is in area codes +1 201 and +1 551.
551 is 95% of 551/0.95 = 580
The country code and area code of Abuhadi, Libya is 218, (0)551.
The country code and area code of Nilphamari, Bangladesh is 880, (0)551.
551 in Roman numerals is written as DLII.
551-13 = 538
1, 19, 29, 551
551 = 19 * 29
551 = DLI