Routing Table Report 04:00 +10GMT Mon 19 Sep, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 372158
Prefixes after maximum aggregation: 167847
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 184821
Total ASes present in the Internet Routing Table: 38802
Prefixes per ASN: 9.59
Origin-only ASes present in the Internet Routing Table: 32187
Origin ASes announcing only one prefix: 15461
Transit ASes present in the Internet Routing Table: 5202
Transit-only ASes present in the Internet Routing Table: 137
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 36
Max AS path prepend of ASN (22394) 33
Prefixes from unregistered ASNs in the Routing Table: 1313
Unregistered ASNs in the Routing Table: 745
Number of 32-bit ASNs allocated by the RIRs: 1750
Number of 32-bit ASNs visible in the Routing Table: 1413
Prefixes from 32-bit ASNs in the Routing Table: 3248
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 101
Number of addresses announced to Internet: 2477837952
Equivalent to 147 /8s, 176 /16s and 206 /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: 154961
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 94000
Total APNIC prefixes after maximum aggregation: 30730
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 90539
Unique aggregates announced from the APNIC address blocks: 38231
APNIC Region origin ASes present in the Internet Routing Table: 4568
APNIC Prefixes per ASN: 19.82
APNIC Region origin ASes announcing only one prefix: 1255
APNIC Region transit ASes present in the Internet Routing Table: 707
Average APNIC Region AS path length visible: 4.5
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: 627680864
Equivalent to 37 /8s, 105 /16s and 166 /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: 143361
Total ARIN prefixes after maximum aggregation: 73641
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 115309
Unique aggregates announced from the ARIN address blocks: 47960
ARIN Region origin ASes present in the Internet Routing Table: 14651
ARIN Prefixes per ASN: 7.87
ARIN Region origin ASes announcing only one prefix: 5642
ARIN Region transit ASes present in the Internet Routing Table: 1550
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 36
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 804859648
Equivalent to 47 /8s, 249 /16s and 47 /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: 88189
Total RIPE prefixes after maximum aggregation: 50118
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 81215
Unique aggregates announced from the RIPE address blocks: 53895
RIPE Region origin ASes present in the Internet Routing Table: 15974
RIPE Prefixes per ASN: 5.08
RIPE Region origin ASes announcing only one prefix: 7960
RIPE Region transit ASes present in the Internet Routing Table: 2497
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: 1003
Number of RIPE addresses announced to Internet: 488890368
Equivalent to 29 /8s, 35 /16s and 224 /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: 34790
Total LACNIC prefixes after maximum aggregation: 7763
LACNIC Deaggregation factor: 4.48
Prefixes being announced from the LACNIC address blocks: 34073
Unique aggregates announced from the LACNIC address blocks: 17814
LACNIC Region origin ASes present in the Internet Routing Table: 1527
LACNIC Prefixes per ASN: 22.31
LACNIC Region origin ASes announcing only one prefix: 451
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: 306
Number of LACNIC addresses announced to Internet: 89105536
Equivalent to 5 /8s, 79 /16s and 164 /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: 8397
Total AfriNIC prefixes after maximum aggregation: 2005
AfriNIC Deaggregation factor: 4.19
Prefixes being announced from the AfriNIC address blocks: 6489
Unique aggregates announced from the AfriNIC address blocks: 2037
AfriNIC Region origin ASes present in the Internet Routing Table: 484
AfriNIC Prefixes per ASN: 13.41
AfriNIC Region origin ASes announcing only one prefix: 153
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: 27212288
Equivalent to 1 /8s, 159 /16s and 58 /24s
Percentage of available AfriNIC address space announced: 40.5
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 2508 11047 955 Korea Telecom (KIX)
17974 2004 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1597 303 85 TPG Internet Pty Ltd
4755 1547 639 170 TATA Communications formerly
7552 1415 1064 7 Vietel Corporation
24560 1182 337 194 Bharti Airtel Ltd., Telemedia
9829 1158 989 28 BSNL National Internet Backbo
9583 1083 80 507 Sify Limited
4808 1069 2088 302 CNCGROUP IP network: China169
17488 959 190 159 Hathway IP Over Cable Interne
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 1625 1085 393 Time Warner Telecom
7029 1608 1008 195 Windstream Communications Inc
20115 1595 1542 634 Charter Communications
22773 1455 2906 99 Cox Communications, Inc.
30036 1424 263 686 Mediacom Communications Corp
19262 1395 4724 399 Verizon Global Networks
7018 1331 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 559 108 179 BILISIM TELEKOM
6830 524 1811 322 UPC Distribution Services
20940 518 167 402 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 433 8152 377 Deutsche Telekom AG
29049 423 31 56 AzerSat LLC.
8402 419 352 13 Corbina telecom
8551 403 354 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 1675 308 159 TVCABLE BOGOTA
8151 1403 2802 355 UniNet S.A. de C.V.
28573 1349 1012 68 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 568 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 697 445 11 TEDATA
15475 450 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 3248 767 1752 32-bit ASN transition
4766 2508 11047 955 Korea Telecom (KIX)
17974 2004 516 31 PT TELEKOMUNIKASI INDONESIA
18566 1912 364 237 Covad Communications
1785 1822 680 122 PaeTec Communications, Inc.
10620 1675 308 159 TVCABLE BOGOTA
4323 1625 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 2004 1973 PT TELEKOMUNIKASI INDONESIA
1785 1822 1700 PaeTec Communications, Inc.
18566 1912 1675 Covad Communications
4766 2508 1553 Korea Telecom (KIX)
10620 1675 1516 TVCABLE BOGOTA
7545 1597 1512 TPG Internet Pty Ltd
23456 3248 1496 32-bit ASN transition
7029 1608 1413 Windstream Communications Inc
7552 1415 1408 Vietel Corporation
4755 1547 1377 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 /14:800 /15:1414 /16:11963 /17:5969 /18:10016
/19:19754 /20:27032 /21:27023 /22:36335 /23:34780 /24:192926
/25:1100 /26:1294 /27:743 /28:162 /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 1570 1675 TVCABLE BOGOTA
23456 1565 3248 32-bit ASN transition
30036 1382 1424 Mediacom Communications Corp
7029 1308 1608 Windstream Communications Inc
11492 1114 1152 Cable One
7011 1058 1183 Citizens Utilities
1785 1052 1822 PaeTec Communications, Inc.
22773 945 1455 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:374 2:54 4:15 5:1 6:3 8:351
12:1952 13:1 14:537 15:13 16:3 17:5
20:10 23:34 24:1677 27:940 31:527 32:64
33:4 34:2 36:4 38:741 40:108 41:2564
42:48 44:3 46:984 47:3 49:251 50:420
52:13 54:2 55:5 56:2 57:35 58:878
59:490 60:376 61:1177 62:1082 63:1942 64:4047
65:2296 66:3929 67:1945 68:1100 69:3175 70:782
71:377 72:1857 74:2438 75:327 76:338 77:869
78:666 79:469 80:1117 81:838 82:503 83:499
84:628 85:1086 86:409 87:870 88:348 89:1540
90:234 91:4096 92:527 93:1152 94:1327 95:786
96:437 97:272 98:929 99:37 101:207 103:301
106:94 107:46 108:77 109:1020 110:667 111:785
112:321 113:439 114:566 115:694 116:923 117:699
118:887 119:1192 120:338 121:685 122:1605 123:1014
124:1357 125:1395 128:244 129:179 130:163 131:573
132:120 133:21 134:215 135:53 136:212 137:137
138:294 139:108 140:493 141:288 142:389 143:403
144:480 145:60 146:467 147:214 148:635 149:251
150:153 151:190 152:452 153:177 154:6 155:393
156:201 157:356 158:144 159:461 160:325 161:207
162:336 163:177 164:508 165:373 166:536 167:432
168:747 169:146 170:859 171:84 172:4 173:1639
174:623 175:396 176:176 177:251 178:999 180:1069
181:26 182:621 183:238 184:367 185:1 186:1453
187:670 188:937 189:873 190:5137 192:5907 193:5004
194:3525 195:3056 196:1250 197:141 198:3585 199:4109
200:5514 201:1631 202:8545 203:8507 204:4251 205:2335
206:2674 207:2828 208:4036 209:3459 210:2693 211:1470
212:2087 213:1771 214:779 215:76 216:4860 217:1600
218:551 219:333 220:1227 221:514 222:342 223:267
End of report
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