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  2. Vertical service code - Wikipedia

    en.wikipedia.org/wiki/Vertical_service_code

    Vertical service code Service definition Australia Japan UK Tone dialing Pulse dialing *51 1151 Who called me. Provides the directory number, date and time of unanswered calls. *52 1152 Call Hold (Single Line Variety Package). Permits the call to be picked up at another station. *53 1153

  3. Pivalic acid - Wikipedia

    en.wikipedia.org/wiki/Pivalic_acid

    The 1 H NMR spectrum at 25 °C and neutral pH is a singlet at 1.08 ppm. [ citation needed ] Pivalic acid is employed as co-catalyst in some palladium -catalyzed C-H functionalization reactions.

  4. Area codes 305, 786, and 645 - Wikipedia

    en.wikipedia.org/wiki/Area_codes_305,_786,_and_645

    [8] [9] Monroe County was added to area code 786 on September 1, 2001. [10] [11] The Florida Public Service Commission approved a third area code for the Miami region on February 25, 2022. Area code 645 was activated on August 4, 2023, before the anticipated exhaust of central office codes in 305 and 786, which was likely to occur in 2023. [12]

  5. Cellular frequencies in the United States - Wikipedia

    en.wikipedia.org/wiki/Cellular_frequencies_in...

    The B block of spectrum was awarded to a local wireline carrier that provided landline telephone service in the CMA. The A block was awarded to non-wireline carriers. In 1986, the FCC allocated an additional 5 MHz of spectrum for each channel block, raising the total amount of spectrum per block to the current total of 25 MHz. [3]

  6. AT&T, Sirius Spectrum Compromise Wins FCC Approval - AOL

    www.aol.com/2012/10/17/att-sirius-spectrum...

    For premium support please call: 800-290-4726 more ways to reach us

  7. FCC Rejects T-Mobile Bid to Limit Spectrum for Verizon, AT&T

    www.aol.com/finance/2015-08-06-fcc-rejects-t...

    FCC Rejects T-Mobile Bid to Limit Spectrum for Verizon, AT&T. Reuters. Updated July 14, 2016 at 10:39 PM. Craig Warga/Bloomberg via Getty Images. By Alina Selyukh

  8. AT&T service restored after nationwide outage. Feds are ... - AOL

    www.aol.com/call-cellphone-outage-affecting-911...

    Around 9 a.m., AT&T had more than 73,000 reported outages, Cricket Wireless had nearly 13,000, Verizon had over 4,000 and T-Mobile had more than 2,000, Down Detector reported. The service ...

  9. Mobile network codes in ITU region 3xx (North America)

    en.wikipedia.org/wiki/Mobile_network_codes_in...

    This list contains the mobile country codes and mobile network codes for networks with country codes between 300 and 399, inclusively – a region that covers North America and the Caribbean. Guam and the Northern Mariana Islands are included in this region as parts of the United States.