AT&T CALIFORNIA GUIDEBOOK PART 9 - Message Toll Services Original Sheet 1 SECTION 2 - V and H Coordinates .2 MESSAGE TOLL TELEPHONE SERVICE A. TOLL RATE GUIDE GENERAL RATE REGULATIONS 1. Description This schedule contains the general rate regulations governing the use of the Toll Rate Guide material. 2. Regulations The information contained in Toll Rate Guide for the State of California B. following, is used in conjunction with other rate quoting material to determine rates and charges. a. The Toll Rate Guide schedule contains lists of rate centers, localities and central offices, hereinafter generally referred to as "points", within the State of California with V-H (vertical and horizontal) coordinates for use in determining airline mileages for message toll telephone service, secretarial line service, foreign exchange and foreign district area service and wide area telephone service available over the lines of the Companyand of the companies with which it connects. ATT TN CA-08-0189 Effective: July 15, 2009 AT&T CALIFORNIA GUIDEBOOK PART 9 - Message Toll Services Original Sheet 2 SECTION 2 - V and H Coordinates 2. MESSAGE TOLL TELEPHONE SERVICE (cont'd) A. TOLL RATE GUIDE GENERAL RATE REGULATIONS (cont'd) 2. Regulations (cont'd) b. The material is arranged as follows: (1) Rate Centers, including toll stations, are listed alphabetically in B.1. following. The symbol "ts" associated with a rate center listed indicates toll station service. (2) Localities are listed alphabetically in B.2. following, and cross-referenced to the rate center with which they are associated. (3) Central Offices are listed numerically by NPA (Numbering Plan Area) in B.3. following, and cross referenced to the rate center with which they are associated. (4) Local Access and Transport Areas are listed numerically in B.4. following. c. The columns headed "LATA", "NPA" and "Central Office" in B.1. following, contain the local access and transport area, numbering plan area and central office codes for each rate center. d. The columns headed "V" and "H" in B.1. following, contain the vertical and horizontal coordinates for each rate center. e. The column headed "ID" in B.1. following, contains an identifier when the vertical and horizontal coordinates are to be used only for a particular type of service. ATT TN CA-08-0189 Effective: July 15, 2009 AT&T CALIFORNIA GUIDEBOOK PART 9 - Message Toll Services Original Sheet 3 SECTION 2 - V and H Coordinates 2. MESSAGE TOLL TELEPHONE SERVICE (cont'd) A. TOLL RATE GUIDE GENERAL RATE REGULATIONS (cont'd) 3. Basis For V-H Coordinates For the purpose of determining airline mileages, vertical and horizontal grid lines have been established across the United States. The spacing between adjacent vertical grid lines and between horizontal grid lines represents a distance of one coordinate unit. This unit is the square root of 0.1, expressed in statute miles. A four-digit vertical (V) and a four-digit horizontal (H) coordinate is computed for each rate center from its latitude and longitude location by use of appropriate map-projection equations. A pair of V-H coordinates locates a rate center, for determining airline mileages, at a particular intersection of an established vertical grid line with an established horizontal grid line. The distance between any two rate centers is the airline mileage computed as explained in 4., following. To determine the V-H coordinates for a point refer to B. following. Look for the point in the column headed "Exchange-Rate Center" in B.1. following. If the point is not listed, look for the name in the column headed "Locality" in B.2. following, determine the rate center and locate the latter in B.1. following. Central office codes listed in B.3. following may also be used to determine rate centers for use in determining rate distances for message toll service. 4. Determination of Airline Mileages To determine the rate distance between any two rate centers proceed as follows: Step 1. Obtain the "V" and "H" coordinates for each rate center. Step 2. Obtain the difference between the "V" coordinates of the two rate centers. Obtain the difference between the "H" coordinates. The difference is always obtained by subtracting the smaller coordinate from the larger coordinate. Step 3. Divide each of the differences obtained in Step 2. by three, rounding each quotient to the nearer integer. ATT TN CA-08-0189 Effective: July 15, 2009 AT&T CALIFORNIA GUIDEBOOK PART 9 - Message Toll Services Original Sheet 4 SECTION 2 - V and H Coordinates 2. MESSAGE TOLL TELEPHONE SERVICE (cont'd) A. TOLL RATE GUIDE GENERAL RATE REGULATIONS (cont'd) 4. Determination of Airline Mileages (cont'd) Step 4. Square these two integers and add the two squares. If the sum of the squares is greater that 1777, divide the integers obtained in Step 3. by three and repeat Step 4. Repeat this process until the sum of the squares obtained in Step 4. is less than 1778. Step 5. The number of successive divisions by three in Steps 3. and 4. determines the value of "N". Multiply the final sum of the two squares obtained in Step 4. by the multiplier specified in the following table for this value of "N" preceding: N MULTIPLIER MINIMUM RATE MILEAGE 1 0.9 - 2 8.1 41 3 72.9 121 4 656.1 361 Step 6. Obtain square root of product in Step 5. and, with any resulting fraction, round up to next higher integer. This is the message rate mileage except that when the mileage so obtained is less than the minimum rate mileage shown in Step 5., the minimum rate mileage corresponding to the "N" value is applicable. Example: The message rate distance is required between Los Angeles and San Francisco. V H Step l. Los Angeles 9213 7878 San Francisco 8492 8719 Step 2. difference 721 841 Step 3a. dividing each difference by three and rounding to nearer integer = 240 and 280 ATT TN CA-08-0189 Effective: July 15, 2009 AT&T CALIFORNIA GUIDEBOOK PART 9 - Message Toll Services Original Sheet 5 SECTION 2 - V and H Coordinates 2. MESSAGE TOLL TELEPHONE SERVICE (cont'd) A. TOLL RATE GUIDE GENERAL RATE REGULATIONS (cont'd) 4. Determination of Airline Mileages (cont'd) Example: (cont'd) Step 4a. squaring integers and adding, 240 x 240 = 57,600 280 x 280 = 78,400 sum of squared integers 136,000 sum of squared integers is greater than 1777, so divide integers in Step 3a. by three and repeat Step 4a. Step 3b. dividing integers in Step 3a. by three and rounding = 80 and 93 Step 4b. squaring integers and adding, 80 x 80 = 6,400 93 x 93 = 8,649 sum of squared integers 15,049 sum of squared integers is greater than 1777, so divide integers in Step 3b. by three and repeat Step 4b. Step 3c. dividing integers in Step 3b. by three and rounding = 27 and 31 Step 4c. squaring integers and adding, 27 x 27 = 729 31 x 31 = 961 sum of squared integers 1,690 This sum of squared integers is less than 1778 and was obtained after three successive divisions by three; therefore, "N" = 3. Step 5. Multiply final sum of squared integers by 1,690 factor 72.9 (corresponding to "N" = 3) x 72.9 = 123,201.0 Step 6. Square root of 123,20l = 351 miles. The 351 miles is larger than the minimum of 121 rate miles applicable when "N" = 3, so the message rate mileage is 351 miles. ATT TN CA-08-0189 Effective: July 15, 2009 AT&T CALIFORNIA GUIDEBOOK PART 9 - Message Toll Services Original Sheet 6 SECTION 2 - V and H Coordinates 2. MESSAGE TOLL TELEPHONE SERVICE (cont'd) B. TOLL RATE GUIDE FOR THE STATE OF CALIFORNIA 1. Rate Centers 1 Exchange-Rate Center LATA NPA Central Office V H ID Adin 724 530 299 7723 8554 Agoura 730 818 575,597,706,707, 9207 7972 735,865,874,879, 889,991 Alamitos 730 562 342,430,431,433, 9268 7838 434,438,439,493, 494,498,592,594, 596,597,598,621, 626,795,797,799, 856,930,936,961, 985,986,987 Alderpoint 722 707 926 7985 8971 NOTE 1: V-H coordinates are used for all services unless limited by an identifier as follows: A. This V-H to be used for message toll telephone service only. B. This V-H to be used for message toll telephone service of over 40 miles only. C. This V-H to be used for message toll telephone service of 40 miles or less and measurement of secretarial line, noncontiguous foreign exchange and noncontiguous foreign district area mileage only. D. This V-H to be used for measurement of secretarial line, noncontiguous foreign exchange and noncontiguous foreign district area mileage only. ATT TN CA-08-0189 Effective: July 15, 2009 AT&T CALIFORNIA GUIDEBOOK PART 9 - Message Toll Services Original Sheet 7 SECTION 2 - V and H Coordinates 2. MESSAGE TOLL TELEPHONE SERVICE (cont'd) B. TOLL RATE GUIDE FOR THE STATE OF CALIFORNIA 1. Rate Centers 1 Exchange-Rate Center LATA NPA Central Office V H ID Alhambra 730 626 237,280,281,282, 9201 7857 284,285,286,287, 288,289,291,292, 293,299,300,302, 307,308,309,312, 382,451,457,458, 548,569,570,571, 572,573,576,588, 614,692,927,943, 979 Alleghany 726 530 287 8098 8494 Alpaugh 728 559 949 8846 8159 Alpine (Alpine County) 726 530 694 8228 8303 Alta 726 530 389 8153 8482 Alturas 724 530 233 7652 8496 NOTE 1: V-H coordinates are used for all services unless limited by an identifier as follows: A. This V-H to be used for message toll telephone service only. B. This V-H to be used for message toll telephone service of over 40 miles only. C. This V-H to be used for message toll telephone service of 40 miles or less and measurement of secretarial line, noncontiguous foreign exchange and noncontiguous foreign district area mileage only. D. This V-H to be used for measurement of secretarial line, noncontiguous foreign exchange and noncontiguous foreign district area mileage only. ATT TN CA-08-0189 Effective: July 15, 2009 AT&T CALIFORNIA GUIDEBOOK PART 9 - Message Toll Services Original Sheet 8 SECTION 2 - V and H Coordinates 2. MESSAGE TOLL TELEPHONE SERVICE (cont'd) B. TOLL RATE GUIDE FOR THE STATE OF CALIFORNIA (cont'd) 1. Rate Centers (cont'd) 1 Exchange-Rate Center LATA NPA Central Office V H ID Anaheim 730 714 237,238,239,254, 9252 7806 284,300 NOTE 1: V-H coordinates are used for all services unless limited by an identifier as follows: A. This V-H to be used for message toll telephone service only. B. This V-H to be used for message toll telephone service of over 40 miles only. C. This V-H to be used for message toll telephone service of 40 miles or less and measurement of secretarial line, noncontiguous foreign exchange and noncontiguous foreign district area mileage only. D. This V-H to be used for measurement of secretarial line, noncontiguous foreign exchange and noncontiguous foreign district area mileage only. ATT TN CA-08-0189 Effective: July 15, 2009 AT&T CALIFORNIA GUIDEBOOK PART 9 - Message Toll Services Original Sheet 9 SECTION 2 - V and H Coordinates 2. MESSAGE TOLL TELEPHONE SERVICE (cont'd) B. TOLL RATE GUIDE FOR THE STATE OF CALIFORNIA (cont'd) 1. Rate Centers (cont'd) 1 Exchange-Rate Center LATA NPA Central Office V H ID Anaheim (cont’d) 730 714 414,490,491,502, 9252 7806 517,518,520,533,535,561,563, 575,630,632,635,666,687,688, 758,762, 764,765,772,774,776,778,780, 781,808,817,956,991, 999 NOTE 1: V-H coordinates are used for all services unless limited by an identifier as follows: A. This V-H to be used for message toll telephone service only. B. This V-H to be used for message toll telephone service of over 40 miles only. C. This V-H to be used for message toll telephone service of 40 miles or less and measurement of secretarial line, noncontiguous foreign exchange and noncontiguous foreign district area mileage only. D. This V-H to be used for measurement of secretarial line, noncontiguous foreign exchange and noncontiguous foreign district area mileage only. ATT TN CA-08-0189 Effective: July 15, 2009 AT&T CALIFORNIA GUIDEBOOK PART 9 - Message Toll Services Original Sheet 10 SECTION 2 - V and H Coordinates 2. MESSAGE TOLL TELEPHONE SERVICE (cont'd) B. TOLL RATE GUIDE FOR THE STATE OF CALIFORNIA (cont'd) 1. Rate Centers (cont'd) 1 Exchange-Rate Center LATA NPA Central Office V H ID Anaheim (cont’d) 730 909 561 9252 7806 Anderson 724 530 365,378 7907 8760 Angels Camp 738 209 728,736,753,795 8397 8408 Annapolis 722 707 886 8304 8902 Antioch 722 925 522,706,753,754, 8434 8623 755,756,757,776, 777,778,779,978 NOTE 1: V-H coordinates are used for all services unless limited by an identifier as follows: A. This V-H to be used for message toll telephone service only. B. This V-H to be used for message toll telephone service of over 40 miles only. C. This V-H to be used for message toll telephone service of 40 miles or less and measurement of secretarial line, noncontiguous foreign exchange and noncontiguous foreign district area mileage only. D. This V-H to be used for measurement of secretarial line, noncontiguous foreign exchange and noncontiguous foreign district area mileage only. ATT TN CA-08-0189 Effective: July 15, 2009