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TrafficFinder! TM  -  Erlang B Traffic Table up to Ten Million Trunks

 

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Trunk Estimator

Erlang B Overflow

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Peaked Traffic (Neal-Wilkinson)

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Traffic Principles

  

Traffic Models:

Poisson

Erlang B

Extended Erlang B

Erlang C

Erlang B Peaked(Neal-Wilkinson)

Binomial

Engset

  

Traffic Tables:

Poisson Traffic Table

Erlang B Traffic Table

Erlang C Traffic Table

Erlang B Peaked(Neal-Wilkinson)   

The following table lists the maximum number of Erlangs of traffic to limit blocking to stated percent.  Calculations were made by TrafficFinder! using the Erlang B Formula.
Trunks P01 P1 P5
1 0.010 0.111 1.000
2 0.153 0.595 2.732
3 0.455 1.271 4.591
4 0.869 2.045 6.501
5 1.361 2.881 8.437
6 1.909 3.758 10.389
7 2.501 4.666 12.351
8 3.128 5.597 14.320
9 3.783 6.546 16.294
10 4.461 7.511 18.273
15 8.108 12.484 28.201
20 12.031 17.613 38.159
25 16.125 22.833 48.132
30 20.337 28.113 58.113
35 24.638 33.434 68.099
40 29.007 38.787 78.088
45 33.432 44.165 88.079
50 37.901 49.562 98.072
55 42.409 54.975 108.066
60 46.950 60.401 118.061
65 51.518 65.839 128.057
70 56.112 71.286 138.053
75 60.728 76.741 148.050
80 65.363 82.203 158.047
85 70.016 87.672 168.044
90 74.684 93.146 178.042
95 79.368 98.626 188.040
100 84.064 104.110 198.038
150 131.576 159.122 298.026
200 179.738 214.323 398.019
250 228.297 269.622 498.016
300 277.126 324.983 598.013
350 326.153 380.384 698.011
400 375.333 435.813 798.010
450 424.635 491.264 898.009
500 474.036 546.730 998.008
550 524 602 1,098
600 573 658 1,198
650 623 713 1,298
700 672 769 1,398
750 722 824 1,498
800 772 880 1,598
850 822 935 1,698
900 871 991 1,798
950 921 1,046 1,898
1,000 971 1,102 1,998
1,500 1,471 1,657 2,998
2,000 1,972 2,213 3,998
2,500 2,475 2,768 4,998
3,000 2,977 3,324 5,998
3,500 3,480 3,879 6,998
4,000 3,983 4,435 7,998
4,500 4,487 4,990 8,998
5,000 4,990 5,546 9,998
5,500 5,494 6,101 10,998
6,000 5,998 6,657 11,998
6,500 6,502 7,212 12,998
7,000 7,006 7,768 13,998
7,500 7,510 8,323 14,998
8,000 8,014 8,879 15,998
8,500 8,518 9,435 16,998
9,000 9,023 9,990 17,998
9,500 9,527 10,546 18,998
10,000 10,031 11,101 19,998
15,000 15,077 16,657 29,998
20,000 20,124 22,212 39,998
25,000 25,172 27,768 49,998
30,000 30,220 33,323 59,998
35,000 35,269 38,879 69,998
40,000 40,318 44,434 79,998
45,000 45,368 49,990 89,998
50,000 50,417 55,546 99,998
55,000 55,467 61,101 109,998
60,000 60,517 66,657 119,998
65,000 65,567 72,212 129,998
70,000 70,617 77,768 139,998
75,000 75,667 83,323 149,998
80,000 80,717 88,879 159,998
85,000 85,767 94,434 169,998
90,000 90,817 99,990 179,998
95,000 95,867 105,546 189,998
100,000 100,918 111,101 199,998
150,000 151,420 166,656 299,998
200,000 201,924 222,212 399,998
250,000 252,428 277,767 499,998
300,000 302,933 333,323 599,998
350,000 353,437 388,878 699,998
400,000 403,942 444,434 799,998
450,000 454,447 499,990 899,998
500,000 504,952 555,545 999,998
550,000 555,457 611,101 1,099,998
600,000 605,962 666,656 1,199,998
650,000 656,467 722,212 1,299,998
700,000 706,972 777,767 1,399,998
750,000 757,477 833,323 1,499,998
800,000 807,981 888,878 1,599,998
850,000 858,486 944,434 1,699,998
900,000 908,991 999,990 1,799,998
950,000 959,496 1,055,545 1,899,998
1,000,000 1,010,001 1,111,101 1,999,998
1,500,000 1,515,052 1,666,656 2,999,998
2,000,000 2,020,102 2,222,212 3,999,998
2,500,000 2,525,152 2,777,767 4,999,998
3,000,000 3,030,203 3,333,323 5,999,998
3,500,000 3,535,253 3,888,878 6,999,998
4,000,000 4,040,304 4,444,434 7,999,998
4,500,000 4,545,354 4,999,990 8,999,998
5,000,000 5,050,405 5,555,545 9,999,998
5,500,000 5,555,455 6,111,101 10,999,998
6,000,000 6,060,506 6,666,656 11,999,998
6,500,000 6,565,556 7,222,212 12,999,998
7,000,000 7,070,607 7,777,767 13,999,998
7,500,000 7,575,657 8,333,323 14,999,998
8,000,000 8,080,708 8,888,878 15,999,998
8,500,000 8,585,758 9,444,434 16,999,998
9,000,000 9,090,809 9,999,990 17,999,998
9,500,000 9,595,859 10,555,545 18,999,998
10,000,000 10,100,910 11,111,101 19,999,998