- The National Do Not Call Registry: (888) 382-1222 / A service that allows you to register your phone number to reduce the number of telemarketing calls you receive.

- The National Insomniacs Society: (724) 818-7004 / A hotline that plays lullabies and relaxing music for those suffering from insomnia.

- The National Time and Frequency Service: (303) 499-7111 / A number that provides the exact time according to the atomic clock.

- The National Record-A-Voice-Message Hotline: (724) 221-1111 - A number where you can leave a voice message that will be played back to you when you call back.

- The National Gratitude Hotline: (855) 836-0465 / A number where you can leave a message expressing gratitude for something or someone.

- The International Asteroid Discovery Service: (319) 688-2916 / A number where you can hear the latest news about asteroids and their close approaches to Earth.

- The National Weather Service: (800) 825-8313 / A service that provides weather forecasts and information for any location in the US.

- The National White Pages: (800) 555-1212 / A service that allows you to search for phone numbers and addresses of people and businesses across the US.

- The National Joke Hotline: (712) 432-4785 / A hotline that plays a different joke every time you call.

- The National Storytelling Hotline: (929) 356-9565 / A hotline where you can listen to short stories recorded by amateur storytellers.

- The National Daily Inspiration Line: (888) 726-0941 / A hotline that provides daily inspirational messages and quotes.

- The National Phone Experiment: (712) 432-4357 / A hotline where you can participate in various phone-based experiments, such as recording your voice or playing games.

- The National Soundscapes Hotline: (712) 432-2040 - A hotline where you can listen to various nature and ambient sounds, such as ocean waves or forest birdsong.

- The National Dream Hotline: (831) 824-1133 - A hotline where you can call and leave a voicemail describing your dreams, which may be featured on their website.

- The National Field Recording Hotline: (336) 223-2665 - A hotline where you can listen to field recordings of various sounds and environments, such as city streets or train stations.

- The National Nostalgia Hotline: (855) 667-8424 - A hotline where you can leave a message describing your favorite nostalgic memories, which may be featured on their podcast.

- The National Time Travel Hotline: (712) 432-5432 - A hotline where you can leave a message for yourself in the future, which will be sent to you at a specified date and time.

- The National Meditation Hotline: (805) 727-0025 - A hotline where you can listen to guided meditations for relaxation and stress relief.

- The National Haiku Hotline: (833) 4-HAIKU-4 - A hotline where you can listen to haikus submitted by callers and recorded by actors.

- The National Laugh Line: (712) 432-3972 - A hotline where you can hear people laughing and join in on the laughter yourself.

- The National Compliment Hotline: (917) 819-4433 - A hotline where you can listen to pre-recorded compliments and feel uplifted.

- The National Ghost Story Hotline: (914) 333-1111 - A hotline where you can listen to spooky ghost stories recorded by amateur storytellers.

- The National Poetry Hotline: (314) 333-1111 - A hotline where you can listen to poems recorded by poets from around the country.

- the National Memory Project Hotline at (929) 333-1111, where you can leave a voicemail describing a cherished memory, and it may be featured on their website.

- National Gratitude Hotline at (855) 667-8424. This hotline allows you to leave a voicemail expressing gratitude for something or someone in your life. The messages are then compiled into a podcast that others can listen to for a dose of positivity.

- (719) 266-2837: This is the US Naval Observatory’s time-by-phone service, which provides the current time and date when you call.

- (877) 877-7271: This is the USPS tracking number, which allows you to track the status of your mail or packages by phone

- (800) 937-8997: This is the FDA’s Seafood Hotline, which provides information on seafood safety, nutrition, and cooking tips

- (800) 411-7343: This is the IRS’s Refund Hotline, which allows you to check on the status of your federal tax refund

- (800) 232-6348: This is the National Park Service’s information hotline, which provides information on national parks, monuments, and other protected areas. - (800) 872-5465: This is the National Association of Attorneys General’s Consumer Protection Hotline, which provides information on consumer scams and fraud. - (800) 578-7223: This is the National Highway Traffic Safety Administration’s roadside assistance hotline, which can provide assistance if you’re stranded on the side of the road.

- The Rickroll phone number is (248) 434-5508. When you call this number, you’ll hear the classic Rick Astley song “Never Gonna Give You Up.”

- (914) 333-1111: This is the National Ghost Story Hotline, where you can listen to spooky ghost stories recorded by amateur storytellers

- (917) 819-4433: This is the National Compliment Hotline, where you can listen to pre-recorded compliments and feel uplifted

- (719) 578-0098: This is the National Positivity Hotline, where you can listen to positive affirmations and messages of encouragement

- (804) 286-9396: This is the National Apology Hotline, where you can call to apologize for something and feel a sense of closure

- (855) 800-6681: This is the National Dream Hotline, where you can call to share a dream you had or listen to recordings of other people’s dreams

- (800) 323-3851: This is the National Bedtime Story Hotline, where you can listen to a bedtime story recorded by actors and voiceover artists

- (951) 262-3062: This is the National Spooky Story Hotline, where you can listen to scary stories recorded by writers and performers

- (855) 737-8255: This is the National Anecdote Hotline, where you can call to share a funny or interesting story from your life

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