diff --git a/port_for/_download_ranges.py b/port_for/_download_ranges.py
index 3a54dad..a63c674 100644
--- a/port_for/_download_ranges.py
+++ b/port_for/_download_ranges.py
@@ -73,4 +73,4 @@ def _parse_ranges(ranges):
         yield int(low), int(high)
 
 if __name__ == '__main__':
-    _write_unassigned_ranges('_ranges.py')
\ No newline at end of file
+    _write_unassigned_ranges('_ranges.py')
diff --git a/port_for/_ranges.py b/port_for/_ranges.py
index f41bdae..00e373a 100644
--- a/port_for/_ranges.py
+++ b/port_for/_ranges.py
@@ -1,17 +1,16 @@
-# auto-generated by port_for._download_ranges (2012-06-14)
+# auto-generated by port_for._download_ranges (2014-08-27)
 UNASSIGNED_RANGES = [
-    (6, 6),
     (28, 28),
     (30, 30),
     (32, 32),
     (34, 34),
     (36, 36),
     (60, 60),
-    (100, 100),
     (258, 258),
-    (271, 279),
+    (272, 279),
     (285, 285),
-    (288, 307),
+    (288, 299),
+    (301, 307),
     (325, 332),
     (334, 343),
     (703, 703),
@@ -26,7 +25,7 @@
     (778, 779),
     (781, 781),
     (784, 799),
-    (802, 807),
+    (803, 807),
     (809, 809),
     (811, 827),
     (834, 842),
@@ -41,46 +40,44 @@
     (945, 952),
     (954, 972),
     (974, 980),
-    (982, 988),
+    (982, 986),
+    (988, 988),
     (1001, 1001),
     (1003, 1009),
-    (1027, 1027),
     (1491, 1491),
     (1528, 1528),
-    (1775, 1775),
-    (2194, 2196),
+    (2194, 2194),
     (2259, 2259),
-    (2375, 2378),
-    (2380, 2380),
+    (2377, 2378),
     (2426, 2426),
     (2693, 2693),
     (2873, 2873),
     (3092, 3092),
-    (3121, 3121),
     (3126, 3126),
     (3546, 3546),
     (3693, 3694),
-    (3766, 3766),
     (3994, 3994),
     (4048, 4048),
     (4120, 4120),
     (4144, 4144),
     (4194, 4198),
-    (4314, 4319),
-    (4330, 4339),
+    (4315, 4315),
+    (4317, 4319),
+    (4332, 4332),
+    (4334, 4339),
     (4363, 4367),
     (4380, 4388),
     (4397, 4399),
     (4412, 4424),
-    (4432, 4432),
-    (4437, 4440),
+    (4434, 4440),
     (4459, 4483),
     (4489, 4499),
     (4501, 4501),
     (4539, 4544),
-    (4560, 4565),
-    (4570, 4589),
-    (4604, 4609),
+    (4561, 4562),
+    (4564, 4565),
+    (4571, 4589),
+    (4605, 4609),
     (4641, 4657),
     (4693, 4699),
     (4705, 4710),
@@ -89,7 +86,7 @@
     (4746, 4746),
     (4748, 4748),
     (4754, 4783),
-    (4789, 4799),
+    (4790, 4799),
     (4805, 4826),
     (4828, 4836),
     (4852, 4866),
@@ -97,7 +94,7 @@
     (4886, 4893),
     (4895, 4898),
     (4903, 4911),
-    (4916, 4936),
+    (4916, 4935),
     (4938, 4939),
     (4943, 4948),
     (4954, 4968),
@@ -106,38 +103,44 @@
     (4992, 4992),
     (4994, 4998),
     (5016, 5019),
-    (5033, 5041),
-    (5076, 5078),
-    (5087, 5089),
+    (5033, 5036),
+    (5038, 5041),
+    (5076, 5077),
+    (5088, 5089),
     (5095, 5098),
     (5113, 5113),
-    (5118, 5120),
-    (5122, 5132),
+    (5118, 5119),
+    (5122, 5123),
+    (5126, 5132),
     (5138, 5144),
     (5147, 5149),
     (5158, 5160),
-    (5169, 5175),
+    (5169, 5171),
+    (5173, 5175),
     (5177, 5189),
     (5197, 5199),
-    (5204, 5220),
-    (5229, 5231),
+    (5204, 5208),
+    (5210, 5214),
+    (5216, 5220),
     (5238, 5244),
     (5254, 5263),
     (5266, 5268),
     (5273, 5279),
     (5283, 5297),
+    (5311, 5311),
     (5316, 5316),
     (5319, 5319),
     (5322, 5342),
     (5345, 5348),
-    (5364, 5393),
+    (5365, 5393),
     (5395, 5396),
     (5438, 5442),
     (5444, 5444),
     (5446, 5449),
     (5451, 5452),
-    (5459, 5460),
-    (5466, 5494),
+    (5460, 5460),
+    (5466, 5479),
+    (5481, 5494),
     (5496, 5497),
     (5507, 5516),
     (5518, 5549),
@@ -145,14 +148,15 @@
     (5558, 5565),
     (5570, 5572),
     (5576, 5578),
-    (5586, 5590),
+    (5587, 5590),
     (5592, 5596),
-    (5606, 5626),
+    (5606, 5617),
+    (5619, 5626),
     (5640, 5645),
     (5647, 5655),
     (5657, 5665),
-    (5668, 5670),
-    (5684, 5687),
+    (5668, 5669),
+    (5685, 5686),
     (5690, 5692),
     (5694, 5695),
     (5697, 5712),
@@ -166,60 +170,69 @@
     (5788, 5792),
     (5795, 5799),
     (5801, 5812),
-    (5815, 5841),
+    (5815, 5840),
     (5843, 5849),
     (5851, 5851),
     (5853, 5858),
     (5860, 5862),
-    (5864, 5882),
+    (5864, 5867),
+    (5869, 5882),
     (5884, 5899),
     (5901, 5909),
-    (5914, 5937),
+    (5914, 5930),
+    (5932, 5937),
     (5939, 5962),
     (5964, 5967),
     (5970, 5983),
     (5993, 5998),
     (6067, 6067),
-    (6077, 6081),
-    (6088, 6098),
-    (6118, 6120),
+    (6078, 6080),
+    (6089, 6098),
+    (6119, 6120),
     (6125, 6128),
-    (6130, 6132),
+    (6131, 6132),
     (6134, 6139),
     (6150, 6158),
     (6164, 6199),
-    (6201, 6221),
-    (6223, 6240),
+    (6202, 6221),
+    (6223, 6224),
+    (6226, 6226),
+    (6228, 6229),
+    (6231, 6239),
     (6245, 6250),
-    (6254, 6256),
+    (6254, 6254),
+    (6256, 6256),
     (6258, 6259),
     (6261, 6261),
     (6263, 6266),
     (6270, 6299),
     (6302, 6305),
     (6307, 6314),
-    (6317, 6319),
+    (6318, 6319),
     (6323, 6323),
-    (6326, 6342),
-    (6344, 6345),
+    (6327, 6342),
+    (6345, 6345),
     (6348, 6349),
     (6351, 6354),
     (6356, 6359),
-    (6361, 6369),
-    (6371, 6381),
+    (6361, 6362),
+    (6364, 6369),
+    (6371, 6378),
+    (6380, 6381),
     (6383, 6388),
     (6391, 6399),
     (6411, 6416),
     (6422, 6431),
-    (6433, 6442),
+    (6433, 6435),
+    (6438, 6441),
     (6447, 6454),
     (6457, 6470),
     (6472, 6479),
     (6490, 6499),
     (6504, 6504),
-    (6511, 6512),
+    (6512, 6512),
     (6516, 6521),
-    (6524, 6542),
+    (6524, 6540),
     (6545, 6546),
     (6552, 6557),
     (6559, 6559),
@@ -229,8 +242,10 @@
     (6584, 6599),
     (6603, 6618),
     (6629, 6631),
-    (6634, 6645),
-    (6647, 6654),
+    (6635, 6639),
+    (6641, 6645),
+    (6647, 6652),
+    (6654, 6654),
     (6658, 6659),
     (6674, 6677),
     (6680, 6686),
@@ -238,8 +253,9 @@
     (6698, 6698),
     (6700, 6701),
     (6707, 6713),
-    (6716, 6766),
-    (6772, 6784),
+    (6717, 6766),
+    (6772, 6776),
+    (6779, 6782),
     (6792, 6800),
     (6802, 6816),
     (6818, 6830),
@@ -249,35 +265,37 @@
     (6869, 6880),
     (7016, 7017),
     (7026, 7029),
-    (7031, 7039),
+    (7032, 7039),
     (7041, 7046),
     (7048, 7069),
-    (7072, 7079),
-    (7081, 7098),
+    (7072, 7072),
+    (7074, 7079),
+    (7081, 7094),
+    (7096, 7098),
     (7102, 7106),
     (7108, 7120),
     (7122, 7127),
     (7130, 7132),
     (7134, 7143),
     (7146, 7160),
-    (7172, 7172),
-    (7175, 7199),
+    (7175, 7180),
+    (7182, 7199),
     (7202, 7226),
-    (7230, 7235),
+    (7230, 7234),
     (7238, 7261),
     (7263, 7271),
     (7284, 7299),
     (7360, 7364),
     (7366, 7390),
-    (7396, 7396),
     (7398, 7399),
     (7403, 7409),
-    (7411, 7420),
+    (7412, 7420),
     (7422, 7425),
     (7432, 7436),
     (7438, 7442),
-    (7444, 7472),
-    (7474, 7490),
+    (7444, 7470),
+    (7472, 7472),
+    (7475, 7490),
     (7492, 7499),
     (7502, 7507),
     (7512, 7541),
@@ -285,12 +303,12 @@
     (7561, 7562),
     (7564, 7565),
     (7567, 7568),
-    (7571, 7587),
-    (7589, 7614),
-    (7616, 7623),
+    (7571, 7573),
+    (7576, 7587),
+    (7589, 7623),
     (7625, 7625),
     (7632, 7632),
-    (7634, 7647),
+    (7635, 7647),
     (7649, 7651),
     (7661, 7669),
     (7671, 7671),
@@ -309,11 +327,12 @@
     (7748, 7776),
     (7790, 7793),
     (7795, 7796),
-    (7802, 7809),
+    (7803, 7809),
     (7811, 7830),
     (7832, 7844),
-    (7847, 7868),
-    (7873, 7879),
+    (7848, 7868),
+    (7873, 7877),
+    (7879, 7879),
     (7881, 7886),
     (7888, 7889),
     (7891, 7899),
@@ -324,12 +343,13 @@
     (7936, 7936),
     (9937, 9949),
     (9957, 9965),
-    (9967, 9986),
+    (9967, 9977),
+    (9979, 9986),
     (9989, 9989),
-    (10006, 10006),
     (10011, 10016),
     (10018, 10023),
-    (10026, 10049),
+    (10026, 10041),
+    (10043, 10049),
     (10052, 10054),
     (10056, 10079),
     (10082, 10099),
@@ -346,52 +366,67 @@
     (10289, 10300),
     (10303, 10307),
     (10309, 10320),
-    (10322, 10479),
+    (10322, 10438),
+    (10440, 10479),
     (10481, 10499),
-    (10501, 10539),
+    (10501, 10504),
+    (10506, 10513),
+    (10515, 10539),
     (10545, 10630),
     (10632, 10799),
     (10801, 10804),
     (10806, 10808),
     (10811, 10822),
     (10824, 10859),
-    (10861, 10890),
+    (10861, 10879),
+    (10881, 10890),
     (10892, 10989),
     (10991, 10999),
-    (11002, 11103),
-    (11107, 11110),
-    (11113, 11160),
+    (11002, 11022),
+    (11024, 11094),
+    (11096, 11102),
+    (11107, 11107),
+    (11113, 11154),
+    (11156, 11160),
     (11166, 11170),
     (11176, 11200),
     (11203, 11207),
     (11209, 11210),
-    (11212, 11234),
+    (11212, 11213),
+    (11216, 11234),
     (11236, 11293),
     (11295, 11318),
     (11322, 11366),
     (11368, 11370),
-    (11372, 11488),
+    (11372, 11429),
+    (11431, 11488),
     (11490, 11575),
     (11577, 11599),
-    (11601, 11719),
-    (11721, 11750),
+    (11601, 11622),
+    (11624, 11719),
+    (11721, 11722),
+    (11724, 11750),
     (11752, 11795),
     (11797, 11875),
-    (11878, 11966),
+    (11878, 11949),
+    (11952, 11966),
     (11968, 11996),
-    (12014, 12034),
+    (12014, 12030),
+    (12033, 12034),
     (12036, 12108),
     (12110, 12120),
     (12122, 12167),
     (12169, 12171),
-    (12173, 12221),
+    (12173, 12200),
+    (12202, 12221),
     (12224, 12299),
     (12301, 12301),
     (12303, 12320),
     (12323, 12344),
     (12346, 12488),
     (12490, 12752),
-    (12754, 12974),
+    (12754, 12864),
+    (12866, 12974),
     (12976, 12997),
     (13051, 13074),
     (13076, 13159),
@@ -405,9 +440,10 @@
     (13725, 13781),
     (13784, 13784),
     (13787, 13817),
-    (13824, 13928),
+    (13824, 13893),
+    (13895, 13928),
     (13931, 13999),
-    (14002, 14032),
+    (14003, 14032),
     (14035, 14140),
     (14143, 14144),
     (14146, 14148),
@@ -419,7 +455,8 @@
     (14568, 14899),
     (14901, 14935),
     (14938, 14999),
-    (15001, 15117),
+    (15001, 15001),
+    (15003, 15117),
     (15119, 15344),
     (15346, 15362),
     (15364, 15554),
@@ -431,35 +468,41 @@
     (16022, 16079),
     (16081, 16160),
     (16163, 16199),
-    (16201, 16249),
-    (16251, 16308),
+    (16201, 16224),
+    (16226, 16249),
+    (16251, 16299),
+    (16301, 16308),
     (16312, 16359),
     (16362, 16366),
     (16369, 16383),
-    (16385, 16566),
+    (16385, 16399),
+    (16401, 16481),
+    (16483, 16566),
     (16568, 16618),
     (16620, 16665),
     (16667, 16899),
     (16901, 16949),
     (16951, 16990),
     (16996, 17006),
-    (17008, 17184),
+    (17008, 17010),
+    (17012, 17183),
     (17186, 17218),
-    (17220, 17220),
     (17223, 17233),
     (17236, 17499),
-    (17501, 17728),
+    (17501, 17554),
+    (17556, 17728),
     (17730, 17753),
     (17757, 17776),
     (17778, 17999),
     (18001, 18009),
-    (18011, 18103),
+    (18011, 18090),
+    (18093, 18103),
     (18105, 18135),
     (18137, 18179),
     (18188, 18199),
     (18202, 18205),
     (18207, 18240),
-    (18242, 18261),
+    (18244, 18261),
     (18263, 18299),
     (18302, 18305),
     (18307, 18332),
@@ -472,8 +515,11 @@
     (18770, 18880),
     (18882, 18887),
     (18889, 18999),
-    (19002, 19019),
-    (19021, 19190),
+    (19002, 19006),
+    (19008, 19019),
+    (19021, 19131),
+    (19133, 19149),
+    (19151, 19190),
     (19192, 19193),
     (19195, 19225),
     (19227, 19282),
@@ -484,7 +530,8 @@
     (19399, 19409),
     (19413, 19538),
     (19542, 19637),
-    (19639, 19811),
+    (19639, 19787),
+    (19789, 19811),
     (19815, 19997),
     (20004, 20004),
     (20006, 20011),
@@ -496,14 +543,16 @@
     (20203, 20221),
     (20223, 20479),
     (20481, 20559),
-    (20561, 20669),
+    (20561, 20594),
+    (20596, 20669),
     (20671, 20701),
     (20703, 20719),
     (20721, 20789),
     (20791, 20998),
-    (21002, 21010),
+    (21002, 21009),
     (21013, 21020),
-    (21023, 21552),
+    (21023, 21024),
+    (21026, 21552),
     (21555, 21589),
     (21591, 21799),
     (21801, 21844),
@@ -517,7 +566,7 @@
     (22306, 22342),
     (22344, 22346),
     (22348, 22348),
-    (22351, 22536),
+    (22352, 22536),
     (22538, 22554),
     (22556, 22762),
     (22764, 22799),
@@ -535,27 +584,33 @@
     (24007, 24241),
     (24243, 24248),
     (24250, 24320),
-    (24322, 24385),
-    (24387, 24443),
+    (24323, 24385),
+    (24387, 24440),
+    (24442, 24443),
     (24445, 24464),
     (24466, 24553),
-    (24555, 24675),
+    (24555, 24576),
+    (24578, 24675),
     (24679, 24679),
     (24681, 24753),
     (24755, 24799),
     (24801, 24841),
-    (24843, 24921),
+    (24843, 24849),
+    (24851, 24921),
     (24923, 24999),
     (25011, 25470),
-    (25472, 25564),
+    (25472, 25559),
+    (25561, 25564),
     (25566, 25569),
     (25571, 25575),
     (25577, 25603),
     (25605, 25792),
     (25794, 25825),
-    (25827, 25887),
+    (25827, 25827),
+    (25841, 25887),
     (25889, 25899),
-    (25904, 25998),
+    (25904, 25953),
+    (25956, 25998),
     (26001, 26132),
     (26134, 26207),
     (26209, 26259),
@@ -563,7 +618,8 @@
     (26488, 26488),
     (26490, 26849),
     (26851, 26899),
-    (26902, 26999),
+    (26902, 26949),
+    (26951, 26999),
     (27051, 27344),
     (27346, 27373),
     (27375, 27441),
@@ -571,103 +627,133 @@
     (27911, 27949),
     (27951, 27959),
     (27970, 27998),
-    (28002, 28394),
+    (28002, 28118),
+    (28120, 28199),
+    (28201, 28239),
+    (28241, 28394),
     (28396, 28784),
-    (28787, 28851),
+    (28787, 28800),
+    (28803, 28851),
     (28853, 28909),
     (28911, 28959),
     (28961, 28999),
-    (29001, 29166),
+    (29001, 29069),
+    (29071, 29117),
+    (29119, 29166),
     (29170, 29291),
     (29293, 29899),
     (29902, 29919),
-    (29921, 29999),
-    (30003, 30259),
+    (29921, 29998),
+    (30005, 30259),
     (30261, 30300),
     (30302, 30563),
     (30565, 30717),
     (30719, 30776),
-    (30778, 30998),
+    (30778, 30831),
+    (30833, 30998),
     (31000, 31019),
     (31021, 31028),
-    (31030, 31336),
-    (31338, 31414),
-    (31417, 31455),
+    (31030, 31313),
+    (31315, 31336),
+    (31338, 31399),
+    (31401, 31414),
+    (31417, 31437),
+    (31439, 31455),
     (31459, 31619),
     (31621, 31684),
     (31686, 31764),
     (31766, 31947),
-    (31950, 32122),
-    (32124, 32244),
+    (31950, 32033),
+    (32035, 32122),
+    (32124, 32136),
+    (32138, 32244),
     (32246, 32248),
-    (32250, 32482),
+    (32250, 32399),
+    (32401, 32482),
     (32484, 32634),
     (32637, 32766),
     (32778, 32800),
     (32802, 32810),
-    (32812, 32895),
+    (32812, 32886),
+    (32888, 32895),
     (32897, 32975),
     (32977, 33122),
-    (33124, 33330),
+    (33124, 33329),
     (33332, 33332),
     (33335, 33433),
     (33435, 33655),
-    (33657, 33981),
-    (33983, 34248),
-    (34250, 34377),
+    (33657, 33847),
+    (33849, 33981),
+    (33983, 33999),
+    (34002, 34009),
+    (34011, 34248),
+    (34250, 34270),
+    (34272, 34377),
     (34380, 34442),
     (34444, 34566),
     (34568, 34961),
     (34965, 34979),
-    (34981, 35353),
+    (34981, 34999),
+    (35007, 35353),
     (35358, 36000),
-    (36002, 36411),
+    (36002, 36329),
+    (36331, 36411),
     (36413, 36421),
     (36423, 36442),
     (36445, 36523),
-    (36525, 36864),
+    (36525, 36601),
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