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Toll-free telephone numbers in the North American Numbering Plan have the area code prefix 800, 833, 844, 855, 866, 877, and 888. Additionally, area codes 822, 880 through 887, and 889 are reserved for toll-free use in the future. 811 is excluded because it is a special dialing code in the group NXX for various other purposes.
Calling an 800-number is free of charge. Calling a 400-number incurs a local access charge. 800-numbers are accessible only to land-line subscribers, while 400-numbers are accessible to all land-line and mobile users. 800-toll-free numbers. 800 toll-free numbers are commonly called "800 免费电话".
800 (eight hundred) is the natural number following 799 and preceding 801. It is the sum of four consecutive primes (193 + 197 + 199 + 211). It is a Harshad number, an Achilles number and the area of a square with diagonal 40.
Hardness comparison table. Brinell HB. (10 mm Ball, 3000 kg load) Vickers HV. (5 kg) Rockwell C HRC. (120 degree cone 150 kg) Rockwell B HRB. (1/16" ball 100 kg)
10 x 800 kt / 8730 kg: Unknown 1986 Yes Silo 220 m 4 UR-100N UTTKh: USSR Khrunichev Machine-Building Plant: 10,000 km 105,600 kg 6 x 550 kt / 4350 kg Active: 1977: Yes: Silo 350-500m 5 RT-2PM Topol: USSR Votkinsk Machine Building Plant: 10,500 km 45,100 kg 800 kt Active 1985 No Road-mobile TEL: 200–900 m 6 RT-2PM2 Topol-M: Russia
800 (HT 1.x) AMD-8131 AMD-8132 ... See Comparison of ATI Chipsets for the comparison of chipsets sold under the ATI brand for AMD ... Part number Mobile A55T ...
Georgia (U.S. state) Georgia is a state in the Southeastern region of the United States. It borders Tennessee to the northwest, North Carolina to the north, South Carolina to the northeast, Florida to the south, and Alabama to the west. Of the 50 United States, Georgia is the 24th-largest by area and 8th most populous.
Toll Free: These are usually ten digit numbers beginning with 800 or 400. 800 (toll-free) are accessible only when called from landline phones, while 400 (shared toll) are accessible from all phones. 400 XXX XXXX or 800 XXXX XXXX. Service numbers: These are usually 3- to 5-digit numbers (e.g. Police is 110) used to access an emergency service ...
800 MHz – 2.266 GHz Socket 479: 90 nm, 130 nm 5.5 W – 27 W 1 400 MHz, 533 MHz 32 KiB 1 MiB – 2 MiB N/A Pentium D/EE: 8xx 9xx Smithfield Presler: 2005–2008 2.66 GHz – 3.73 GHz Socket T: 65 nm, 90 nm 95 W – 130 W 2 533 MHz, 800 MHz, 1066 MHz 16 KiB per core 2×1 MiB – 2×2 MiB N/A Pentium Dual-Core: E2xxx E3xxx E5xxx T2xxx T3xxx
A number is a mathematical object used to count, ... The earliest known use of irrational numbers was in the Indian Sulba Sutras composed between 800 and 500 BC.