Countrycodes constitute the international telephone numbering plan. They are used only when dialing a telephone number in a country or world region other than the caller's. Country codes are dialed before the national telephone number, but require at least one additional prefix, the international call prefix which is an exit code from the national numbering plan to the international one. In most countries, this prefix is 00, an ITU recommendation; it is 011 in the countries of the North American Numbering Plan while a minority of countries use other prefixes.
Some of the larger countries were assigned two-digit codes to compensate for their usually longer domestic numbers. Small countries were assigned three-digit codes, which also has been the practice since the 1980s.
State and county names included on the file provide initial help in locating census tracts of interest (all census tracts are nested within counties). To determine the census tract for a particular location within a county, please see the Federal Financial Institutions Examination Council's FFIEC Geocoding/Mapping System.
Errata: On July 3, 2019, the Rural-Urban Commuting Area (RUCA) Codes data product was revised to correct a programming error affecting the 2010 secondary RUCA codes. The revision corrects the secondary codes of 10,909 of 74,002 census tracts. Secondary RUCA codes may be used to classify census tracts into rural and urban categories. The revised secondary codes result in an increase in the number of census tracts classified as rural. The 2010 primary RUCA codes were not affected by this revision.
Redirect calls to another telephone number (such as a cell phone) when you're unavailable. Your home phone will ring once as a reminder that the call is being redirected. You can still make outgoing calls even when call forwarding is in effect.
To activate call forwarding, dial *72 and wait for the special tone. Then, dial the number to which your calls should be forwarded. Call forwarding is activated when someone answers at the forwarded number.
To answer the second call, depress the switchhook (the button to pick up or hang up the phone) for about one second. If you are using a cordless phone, press the talk or flash button. Your first call will be placed on hold, and you will be connected with the new caller.
First, depress the switchhook (the button to pick up or hang up the phone) for about one second. If you are using a cordless phone, press the talk or flash button. This places your original caller on hold. Then, dial the person you want to join the conversation. When that person answers, you can speak with them privately before making the call a three-way conversation.
To disconnect the second party, depress the switchhook for about one second. You'll now have only the original caller on the line. Or, if either party hangs up, you can continue speaking with the remaining party.
To program your Speed Calling 8 list, dial *74. Listen for the dialtone, then dial the one-digit number (2 through 9) you would like to use to dial a frequently called number. Then, dial the entire number you wish to designate for that code, followed by #. Remember to dial 1 and the area code for long-distance numbers.
Contact Socket if you would like to establish more than 8 speed dial numbers. Once Speed Calling 30 has been set up, dial *75. Listen for the dialtone, then dial the two-digit number (20 through 49) you would like to use to dial a frequently called number. Then, dial the entire number you wish to designate for that code, followed by #. Remember to dial 1 and the area code for long-distance calls.
To activate, dial *64. Listen for an announcement to tell you whether the feature is currently on or off. The recorded voice will then tell you how many numbers are on your call acceptance list. Follow the voice instructions and dial 3 to turn the feature on or off.
Forward calls from certain numbers to another number (such as your cell phone) when you are away from your phone. If the number is not on your selective call forwarding list, your home phone will ring as usual.
To activate, dial *62. Listen for an announcement to tell you whether the feature is currently on or off. The recorded voice will then tell you how many numbers are on your forward list. Follow the voice instructions and dial 3 to turn the feature on or off.
To activate, dial *60. Listen for an announcement to tell you whether the feature is currently on or off. The recorded voice will then tell you how many numbers are on your rejection list. Follow the voice instructions and dial 3 to turn the feature on or off.
To activate, dial *51. Listen for an announcement to tell you whether the feature is currently on or off. The recorded voice will then tell you how many numbers are on your distinctive ring list. Follow the voice instructions and dial 3 to turn the feature on or off.
Once the service is activated and you receive a nuisance call, depress the switchhook, release quickly and listen for a special dialtone. If you've already hung up, pick up the phone and dial *57. Listen for a confirmation announcement. The number you have traced will be recorded at the phone company in case you decide to follow up on the matter.
Forward incoming calls to voicemail or another number when you are already on the phone. This ensures your calls will not be interrupted but that other callers can have the opportunity to leave a message for you when you are unavailable.
Forward calls to another number when you are unable to answer your phone. You decide how long your phone should ring (2-9 rings) before the call is forwarded. You then have the option to answer incoming calls if you choose.
CountryCode.org is your complete guide to call anywhere in the world. The calling chart above will help you find the dialing codes you need to make long distance phone calls to friends, family, and business partners around the globe. Simply find and click the country you wish to call. You'll find instructions on how to call that country using its country code, as well as other helpful information like area codes, ISO country codes, and the kinds of electrical outlets and phone jacks found in that part of the world. Making a phone call has never been easier with CountryCode.org.
The settings menu on Android phones provides ways to manage installed apps, check the battery's health, diagnose network problems, and scan for threats. It also has information such as the device's name, software version, and memory size. You can use secret codes for quick access to these features. Just dial a number on your phone to trigger an action or navigate a hidden diagnostic menu. Some secret codes work on all Android devices, while others are limited to third-party Android skins like One UI for Samsung phones.
Android secret short codes are numbers you dial to access hidden menus or actions on your phone. You can dial them to test functions, troubleshoot problems, or check information about your device. These codes are supported by two protocols: the Unstructured Supplementary Service Data protocol (USSD) and the Man Machine Interface (MMI). On the surface, they work the same as they require you to dial codes for secret menu access.
USSD and MMI codes have the same structure. They start with an asterisk (*), end with a hash (#), and use a combination of numbers, asterisks, and hash symbols in between. You'll open the phone dialer app to type and dial them. Most codes automatically run when you enter the last hash (#) symbol. Some require you to tap the call button to execute them.
The purpose of both protocols is different. The USSD protocol allows your phone to communicate with your service provider's computers, which process the request and send a response. It supports secret codes that fetch basic services like balance inquiries and prepaid top-ups without an internet connection or going through a long menu. Meanwhile, the MMI protocol supports secret codes that take you to your phone's internal settings and functions. That means the phone processes the code without sending a request to the network provider.
Most secret codes run on all Android devices, regardless of the manufacturer. Some work only on manufacturer devices. If a code doesn't work on your phone, its manufacturer doesn't support it. We focus on universal codes that work on most Android phones. They allow you to debug your device without relying on other hacks. Later, we list the exclusive codes for Samsung, Motorola, and OnePlus.
The International Mobile Equipment Identity (IMEI) number is a unique 15-digit identifier number assigned to phones running on a GSM network. If your device is lost or stolen, you can use its IMEI number to block it. This way, the thief or person who finds it can't access your contacts, messages, and other personal content.
A device's Specific Absorption Rate (SAR) value shows you the rate of radio frequency (RF) that your body absorbs from your smartphone. Smartphones mostly emit non-ionizing energy, which is less likely to kill you than radiation from X-rays and similar machines. It lacks the energy needed to break apart the atoms and molecules in your body.
Still, you want to be on the safe side. Knowing this information helps you practice habits that reduce your exposure, such as reducing interaction with your device. Dial #07# to find your device's SAR value and other regulatory information.
If you want to be notified when someone calls you during an ongoing call, activate call waiting services on your phone with the *43# code. You'll hear a unique sound and decide whether to place the current call on hold and answer the incoming one or ignore the incoming call. If you don't want the distraction, turn off the service with the same code.
Apps often run in the background, even after you think you've closed them properly. They consume your phone's CPU, RAM, battery, and other resources. Limit them to free up these resources and improve your device's performance. Run ##0283## to suspend all background processes on your phone. This secret code is more helpful on older Android devices because of their lower-end hardware or outdated software.
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