Routing Table Report 04:00 +10GMT Tue 20 Sep, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 372322
Prefixes after maximum aggregation: 167943
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 184761
Total ASes present in the Internet Routing Table: 38816
Prefixes per ASN: 9.59
Origin-only ASes present in the Internet Routing Table: 32187
Origin ASes announcing only one prefix: 15471
Transit ASes present in the Internet Routing Table: 5212
Transit-only ASes present in the Internet Routing Table: 134
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 33
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 1322
Unregistered ASNs in the Routing Table: 746
Number of 32-bit ASNs allocated by the RIRs: 1750
Number of 32-bit ASNs visible in the Routing Table: 1417
Prefixes from 32-bit ASNs in the Routing Table: 3255
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 100
Number of addresses announced to Internet: 2478192768
Equivalent to 147 /8s, 182 /16s and 56 /24s
Percentage of available address space announced: 66.9
Percentage of allocated address space announced: 66.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.3
Total number of prefixes smaller than registry allocations: 155022
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93968
Total APNIC prefixes after maximum aggregation: 30727
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 90512
Unique aggregates announced from the APNIC address blocks: 38190
APNIC Region origin ASes present in the Internet Routing Table: 4568
APNIC Prefixes per ASN: 19.81
APNIC Region origin ASes announcing only one prefix: 1260
APNIC Region transit ASes present in the Internet Routing Table: 709
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 88
Number of APNIC addresses announced to Internet: 627602528
Equivalent to 37 /8s, 104 /16s and 116 /24s
Percentage of available APNIC address space announced: 79.6
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8,
49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8,
106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8,
116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8,
123/8, 124/8, 125/8, 126/8, 133/8, 175/8, 180/8,
182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8,
219/8, 220/8, 221/8, 222/8, 223/8,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 143408
Total ARIN prefixes after maximum aggregation: 73723
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 115355
Unique aggregates announced from the ARIN address blocks: 47969
ARIN Region origin ASes present in the Internet Routing Table: 14660
ARIN Prefixes per ASN: 7.87
ARIN Region origin ASes announcing only one prefix: 5647
ARIN Region transit ASes present in the Internet Routing Table: 1554
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 25
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 804860416
Equivalent to 47 /8s, 249 /16s and 50 /24s
Percentage of available ARIN address space announced: 64.0
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647, 29696-30719, 31744-33791
35840-36863, 39936-40959, 46080-47103
53248-55295, 393216-394239
ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8,
12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8,
20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8,
29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8,
40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8,
53/8, 54/8, 55/8, 56/8, 57/8, 63/8, 64/8,
65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8,
72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8,
98/8, 99/8, 100/8, 104/8, 107/8, 108/8, 173/8,
174/8, 184/8, 199/8, 204/8, 205/8, 206/8, 207/8,
208/8, 209/8, 214/8, 215/8, 216/8,
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 88272
Total RIPE prefixes after maximum aggregation: 50144
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 81262
Unique aggregates announced from the RIPE address blocks: 53931
RIPE Region origin ASes present in the Internet Routing Table: 15977
RIPE Prefixes per ASN: 5.09
RIPE Region origin ASes announcing only one prefix: 7962
RIPE Region transit ASes present in the Internet Routing Table: 2500
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 33
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1005
Number of RIPE addresses announced to Internet: 489285888
Equivalent to 29 /8s, 41 /16s and 233 /24s
Percentage of available RIPE address space announced: 78.8
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
40960-45055, 47104-52223, 56320-58367
196608-198655
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8,
83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8,
90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8,
176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 34805
Total LACNIC prefixes after maximum aggregation: 7757
LACNIC Deaggregation factor: 4.49
Prefixes being announced from the LACNIC address blocks: 34104
Unique aggregates announced from the LACNIC address blocks: 17801
LACNIC Region origin ASes present in the Internet Routing Table: 1526
LACNIC Prefixes per ASN: 22.35
LACNIC Region origin ASes announcing only one prefix: 448
LACNIC Region transit ASes present in the Internet Routing Table: 273
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 308
Number of LACNIC addresses announced to Internet: 89108864
Equivalent to 5 /8s, 79 /16s and 177 /24s
Percentage of available LACNIC address space announced: 59.0
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 8439
Total AfriNIC prefixes after maximum aggregation: 1992
AfriNIC Deaggregation factor: 4.24
Prefixes being announced from the AfriNIC address blocks: 6510
Unique aggregates announced from the AfriNIC address blocks: 1988
AfriNIC Region origin ASes present in the Internet Routing Table: 486
AfriNIC Prefixes per ASN: 13.40
AfriNIC Region origin ASes announcing only one prefix: 154
AfriNIC Region transit ASes present in the Internet Routing Table: 105
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 27224064
Equivalent to 1 /8s, 159 /16s and 104 /24s
Percentage of available AfriNIC address space announced: 40.6
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 2509 11048 956 Korea Telecom (KIX)
17974 2010 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1597 303 85 TPG Internet Pty Ltd
4755 1551 639 169 TATA Communications formerly
7552 1416 1064 7 Vietel Corporation
24560 1182 337 194 Bharti Airtel Ltd., Telemedia
9829 1158 989 28 BSNL National Internet Backbo
9583 1084 80 503 Sify Limited
4808 1069 2088 302 CNCGROUP IP network: China169
18101 950 118 139 Reliance Infocom Ltd Internet
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3563 3817 226 bellsouth.net, inc.
18566 1912 364 237 Covad Communications
1785 1822 680 122 PaeTec Communications, Inc.
4323 1624 1085 393 Time Warner Telecom
7029 1608 1008 195 Windstream Communications Inc
20115 1595 1542 634 Charter Communications
22773 1456 2906 99 Cox Communications, Inc.
19262 1395 4724 399 Verizon Global Networks
30036 1335 247 685 Mediacom Communications Corp
7018 1332 7050 871 AT&T WorldNet Services
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
34984 561 108 180 BILISIM TELEKOM
6830 524 1811 322 UPC Distribution Services
20940 522 171 405 Akamai Technologies European
12479 473 594 8 Uni2 Autonomous System
3292 472 2080 404 TDC Tele Danmark
8866 461 133 26 Bulgarian Telecommunication C
3320 437 8153 378 Deutsche Telekom AG
8402 429 352 13 Corbina telecom
29049 423 31 56 AzerSat LLC.
8551 404 354 44 Bezeq International
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1679 309 156 TVCABLE BOGOTA
8151 1411 2802 355 UniNet S.A. de C.V.
28573 1352 1012 69 NET Servicos de Comunicao S.A
7303 1156 678 170 Telecom Argentina Stet-France
14420 734 58 88 CORPORACION NACIONAL DE TELEC
6503 581 450 68 AVANTEL, S.A.
22047 579 322 17 VTR PUNTO NET S.A.
27947 567 55 82 Telconet S.A
3816 535 232 98 Empresa Nacional de Telecomun
11172 516 85 91 Servicios Alestra S.A de C.V
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 813 147 43 LINKdotNET AS number
8452 698 445 11 TEDATA
15475 449 74 8 Nile Online
36992 293 415 14 Etisalat MISR
3741 274 938 229 The Internet Solution
6713 242 519 14 Itissalat Al-MAGHRIB
33776 239 13 8 Starcomms Nigeria Limited
15706 219 32 6 Sudatel Internet Exchange Aut
12258 198 28 58 Vodacom Internet Company
29571 198 17 13 Ci Telecom Autonomous system
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3563 3817 226 bellsouth.net, inc.
23456 3255 770 1757 32-bit ASN transition
4766 2509 11048 956 Korea Telecom (KIX)
17974 2010 516 31 PT TELEKOMUNIKASI INDONESIA
18566 1912 364 237 Covad Communications
1785 1822 680 122 PaeTec Communications, Inc.
10620 1679 309 156 TVCABLE BOGOTA
4323 1624 1085 393 Time Warner Telecom
7029 1608 1008 195 Windstream Communications Inc
7545 1597 303 85 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
17974 2010 1979 PT TELEKOMUNIKASI INDONESIA
1785 1822 1700 PaeTec Communications, Inc.
18566 1912 1675 Covad Communications
4766 2509 1553 Korea Telecom (KIX)
10620 1679 1523 TVCABLE BOGOTA
7545 1597 1512 TPG Internet Pty Ltd
23456 3255 1498 32-bit ASN transition
7029 1608 1413 Windstream Communications Inc
7552 1416 1409 Vietel Corporation
4755 1551 1382 TATA Communications formerly
Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.155.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
46.18.104.0/21 23456 32-bit ASN transition
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
Complete listing at http://thyme.rand.apnic.net/current/data-add-IANA
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:12 /10:27 /11:81 /12:235
/13:464 /14:801 /15:1415 /16:11968 /17:5973 /18:10009
/19:19761 /20:27054 /21:27076 /22:36380 /23:34775 /24:192955
/25:1101 /26:1293 /27:746 /28:168 /29:4 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2200 3563 bellsouth.net, inc.
18566 1868 1912 Covad Communications
10620 1574 1679 TVCABLE BOGOTA
23456 1560 3255 32-bit ASN transition
7029 1308 1608 Windstream Communications Inc
30036 1296 1335 Mediacom Communications Corp
11492 1114 1152 Cable One
7011 1058 1183 Citizens Utilities
1785 1052 1822 PaeTec Communications, Inc.
22773 946 1456 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:375 2:56 4:15 5:1 6:3 8:351
12:1956 13:1 14:540 15:13 16:3 17:5
20:10 23:34 24:1678 27:940 31:528 32:64
33:4 34:2 36:4 38:742 40:108 41:2568
42:48 44:3 46:985 47:3 49:250 50:421
52:13 54:2 55:5 56:2 57:35 58:876
59:492 60:361 61:1179 62:1086 63:1939 64:4047
65:2295 66:3929 67:1949 68:1100 69:3176 70:783
71:377 72:1859 74:2436 75:327 76:339 77:870
78:665 79:470 80:1121 81:841 82:503 83:499
84:627 85:1086 86:410 87:869 88:348 89:1540
90:234 91:4100 92:529 93:1152 94:1322 95:785
96:437 97:272 98:930 99:37 101:209 103:306
106:94 107:46 108:78 109:1017 110:670 111:782
112:312 113:442 114:565 115:692 116:890 117:700
118:887 119:1204 120:334 121:686 122:1604 123:1011
124:1358 125:1396 128:244 129:179 130:165 131:578
132:120 133:21 134:215 135:53 136:212 137:137
138:288 139:108 140:493 141:286 142:389 143:406
144:482 145:60 146:467 147:214 148:636 149:251
150:153 151:190 152:452 153:177 154:6 155:394
156:201 157:356 158:144 159:462 160:325 161:207
162:336 163:178 164:508 165:374 166:537 167:433
168:747 169:145 170:859 171:84 172:4 173:1640
174:623 175:396 176:177 177:256 178:999 180:1069
181:26 182:622 183:238 184:368 185:1 186:1452
187:672 188:939 189:874 190:5145 192:5902 193:5009
194:3522 195:3059 196:1257 197:142 198:3588 199:4112
200:5513 201:1631 202:8552 203:8496 204:4246 205:2332
206:2674 207:2829 208:4037 209:3457 210:2694 211:1467
212:2088 213:1770 214:783 215:76 216:4858 217:1606
218:551 219:333 220:1227 221:514 222:342 223:267
End of report
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