Routing Table Report 04:00 +10GMT Wed 02 Feb, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 341110
Prefixes after maximum aggregation: 154915
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 169449
Total ASes present in the Internet Routing Table: 35709
Prefixes per ASN: 9.55
Origin-only ASes present in the Internet Routing Table: 30774
Origin ASes announcing only one prefix: 14930
Transit ASes present in the Internet Routing Table: 4935
Transit-only ASes present in the Internet Routing Table: 121
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 31
Max AS path prepend of ASN (36992) 29
Prefixes from unregistered ASNs in the Routing Table: 539
Unregistered ASNs in the Routing Table: 140
Number of 32-bit ASNs allocated by the RIRs: 1063
Prefixes from 32-bit ASNs in the Routing Table: 4
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 208
Number of addresses announced to Internet: 2349908544
Equivalent to 140 /8s, 16 /16s and 194 /24s
Percentage of available address space announced: 63.4
Percentage of allocated address space announced: 65.5
Percentage of available address space allocated: 96.8
Percentage of address space in use by end-sites: 88.0
Total number of prefixes smaller than registry allocations: 139859
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 85068
Total APNIC prefixes after maximum aggregation: 28830
APNIC Deaggregation factor: 2.95
Prefixes being announced from the APNIC address blocks: 81837
Unique aggregates announced from the APNIC address blocks: 35544
APNIC Region origin ASes present in the Internet Routing Table: 4315
APNIC Prefixes per ASN: 18.97
APNIC Region origin ASes announcing only one prefix: 1213
APNIC Region transit ASes present in the Internet Routing Table: 693
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 20
Number of APNIC addresses announced to Internet: 586789920
Equivalent to 34 /8s, 249 /16s and 180 /24s
Percentage of available APNIC address space announced: 79.5
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
55296-56319, 131072-132095
APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 42/8, 43/8, 49/8,
58/8, 59/8, 60/8, 61/8, 101/8, 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: 138203
Total ARIN prefixes after maximum aggregation: 70873
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 109105
Unique aggregates announced from the ARIN address blocks: 44517
ARIN Region origin ASes present in the Internet Routing Table: 14153
ARIN Prefixes per ASN: 7.71
ARIN Region origin ASes announcing only one prefix: 5405
ARIN Region transit ASes present in the Internet Routing Table: 1471
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 751690112
Equivalent to 44 /8s, 205 /16s and 225 /24s
Percentage of available ARIN address space announced: 63.1
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, 47/8, 48/8, 50/8, 52/8, 54/8,
55/8, 56/8, 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,
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: 81388
Total RIPE prefixes after maximum aggregation: 46215
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 74706
Unique aggregates announced from the RIPE address blocks: 48501
RIPE Region origin ASes present in the Internet Routing Table: 15245
RIPE Prefixes per ASN: 4.90
RIPE Region origin ASes announcing only one prefix: 7760
RIPE Region transit ASes present in the Internet Routing Table: 2373
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 457150272
Equivalent to 27 /8s, 63 /16s and 143 /24s
Percentage of available RIPE address space announced: 75.7
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, 193/8, 194/8, 195/8, 212/8, 213/8,
217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 31642
Total LACNIC prefixes after maximum aggregation: 7236
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 30390
Unique aggregates announced from the LACNIC address blocks: 15797
LACNIC Region origin ASes present in the Internet Routing Table: 1420
LACNIC Prefixes per ASN: 21.40
LACNIC Region origin ASes announcing only one prefix: 429
LACNIC Region transit ASes present in the Internet Routing Table: 247
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 80277376
Equivalent to 4 /8s, 200 /16s and 239 /24s
Percentage of available LACNIC address space announced: 59.8
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 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: 4587
Total AfriNIC prefixes after maximum aggregation: 1644
AfriNIC Deaggregation factor: 2.79
Prefixes being announced from the AfriNIC address blocks: 3413
Unique aggregates announced from the AfriNIC address blocks: 1583
AfriNIC Region origin ASes present in the Internet Routing Table: 394
AfriNIC Prefixes per ASN: 8.66
AfriNIC Region origin ASes announcing only one prefix: 123
AfriNIC Region transit ASes present in the Internet Routing Table: 90
Average AfriNIC Region AS path length visible: 5.2
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 18169856
Equivalent to 1 /8s, 21 /16s and 64 /24s
Percentage of available AfriNIC address space announced: 36.1
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1914 9485 525 Korea Telecom (KIX)
7545 1606 301 83 TPG Internet Pty Ltd
4755 1409 637 161 TATA Communications formerly
17974 1390 467 27 PT TELEKOMUNIKASI INDONESIA
24560 1095 317 180 Bharti Airtel Ltd., Telemedia
9583 1043 76 490 Sify Limited
4808 1034 2130 292 CNCGROUP IP network: China169
17488 944 161 105 Hathway IP Over Cable Interne
18101 925 117 142 Reliance Infocom Ltd Internet
9829 887 757 50 BSNL National Internet Backbo
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 3709 3855 265 bellsouth.net, inc.
4323 2630 1109 403 Time Warner Telecom
19262 1841 4943 285 Verizon Global Networks
1785 1787 697 132 PaeTec Communications, Inc.
20115 1522 1532 642 Charter Communications
6478 1472 290 112 AT&T Worldnet Services
7018 1355 6674 875 AT&T WorldNet Services
2386 1296 552 933 AT&T Data Communications Serv
22773 1278 2865 78 Cox Communications, Inc.
11492 1227 234 86 Cable One
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
6830 515 1764 319 UPC Distribution Services
9198 465 266 14 Kazakhtelecom Data Network Ad
34984 458 97 138 BILISIM TELEKOM
3292 447 2011 390 TDC Tele Danmark
8866 439 133 23 Bulgarian Telecommunication C
12479 416 577 6 Uni2 Autonomous System
3320 403 7619 352 Deutsche Telekom AG
8551 403 353 46 Bezeq International
702 396 1816 309 UUNET - Commercial IP service
20940 392 89 303 Akamai Technologies European
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 1358 252 163 TVCABLE BOGOTA
8151 1334 2632 358 UniNet S.A. de C.V.
28573 1246 961 82 NET Servicos de Comunicao S.A
6503 1150 355 78 AVANTEL, S.A.
7303 888 461 115 Telecom Argentina Stet-France
14420 622 56 91 CORPORACION NACIONAL DE TELEC
22047 566 310 15 VTR PUNTO NET S.A.
3816 518 220 96 Empresa Nacional de Telecomun
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 456 34 31 Telefonica del Sur S.A.
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
3741 264 987 226 The Internet Solution
6713 203 199 12 Itissalat Al-MAGHRIB
33776 194 12 15 Starcomms Nigeria Limited
29571 193 17 11 Ci Telecom Autonomous system
16637 152 438 87 MTN Network Solutions
36874 137 24 6 Cybersmart
29975 131 490 17 Vodacom
37061 108 9 2 One Communications Ltd
15706 106 16 5 Sudatel Internet Exchange Aut
37054 85 5 21 Data Telecom Service
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 3709 3855 265 bellsouth.net, inc.
4323 2630 1109 403 Time Warner Telecom
4766 1914 9485 525 Korea Telecom (KIX)
19262 1841 4943 285 Verizon Global Networks
1785 1787 697 132 PaeTec Communications, Inc.
7545 1606 301 83 TPG Internet Pty Ltd
20115 1522 1532 642 Charter Communications
6478 1472 290 112 AT&T Worldnet Services
4755 1409 637 161 TATA Communications formerly
17974 1390 467 27 PT TELEKOMUNIKASI INDONESIA
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 2630 2227 Time Warner Telecom
1785 1787 1655 PaeTec Communications, Inc.
19262 1841 1556 Verizon Global Networks
7545 1606 1523 TPG Internet Pty Ltd
4766 1914 1389 Korea Telecom (KIX)
17974 1390 1363 PT TELEKOMUNIKASI INDONESIA
6478 1472 1360 AT&T Worldnet Services
4755 1409 1248 TATA Communications formerly
22773 1278 1200 Cox Communications, Inc.
10620 1358 1195 TVCABLE BOGOTA
Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
16927 UNALLOCATED 12.0.252.0/23 7018 AT&T WorldNet Servic
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic
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
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
5.0.0.0/16 12654 RIPE NCC RIS Project
5.1.0.0/21 12654 RIPE NCC RIS Project
5.1.24.0/24 12654 RIPE NCC RIS Project
24.129.192.0/19 7922 Continental Cablevision
37.0.0.0/16 12654 RIPE NCC RIS Project
37.1.0.0/21 12654 RIPE NCC RIS Project
37.1.24.0/24 12654 RIPE NCC RIS Project
41.78.192.0/22 30999 Emtel is GSM, 3G and ISP in M
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
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 /9:10 /10:26 /11:71 /12:214
/13:440 /14:766 /15:1359 /16:11464 /17:5595 /18:9248
/19:18760 /20:24210 /21:24592 /22:32458 /23:30971 /24:178067
/25:993 /26:1070 /27:585 /28:165 /29:16 /30:3
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2288 3709 bellsouth.net, inc.
6478 1426 1472 AT&T Worldnet Services
4323 1419 2630 Time Warner Telecom
10620 1249 1358 TVCABLE BOGOTA
11492 1184 1227 Cable One
18566 1106 1125 Covad Communications
7011 1065 1168 Citizens Utilities
1785 1058 1787 PaeTec Communications, Inc.
19262 954 1841 Verizon Global Networks
6503 934 1150 AVANTEL, S.A.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:167 2:33 4:13 5:1 8:332 12:2029
13:1 14:383 15:15 16:3 17:8 20:9
23:1 24:1456 27:567 32:61 33:5 34:2
37:1 38:693 40:101 41:1632 44:3 46:535
47:5 49:140 50:79 52:12 55:5 56:2
57:30 58:888 59:483 60:391 61:1115 62:857
63:1916 64:3754 65:2335 66:4069 67:1753 68:1006
69:2875 70:718 71:394 72:1989 73:1 74:2318
75:293 76:329 77:845 78:696 79:441 80:1022
81:758 82:512 83:475 84:461 85:1051 86:526
87:725 88:357 89:1583 90:158 91:3446 92:495
93:1040 94:1186 95:785 96:413 97:249 98:757
99:33 101:23 107:3 108:81 109:868 110:471
111:695 112:311 113:358 114:494 115:637 116:869
117:676 118:660 119:1031 120:241 121:702 122:1611
123:1052 124:1268 125:1216 128:247 129:152 130:173
131:557 132:110 133:20 134:218 135:49 136:216
137:147 138:293 139:120 140:481 141:198 142:365
143:378 144:484 145:51 146:426 147:194 148:627
149:273 150:151 151:230 152:304 153:175 154:3
155:347 156:171 157:341 158:128 159:377 160:314
161:205 162:278 163:118 164:485 165:338 166:480
167:422 168:740 169:152 170:748 171:66 172:1
173:1263 174:519 175:313 176:1 177:4 178:774
180:775 182:338 183:248 184:208 186:977 187:794
188:910 189:1024 190:4431 192:5787 193:4788 194:3477
195:2919 196:1010 197:3 198:3567 199:3750 200:5578
201:1582 202:8252 203:8427 204:4099 205:2347 206:2587
207:3071 208:3867 209:3498 210:2639 211:1331 212:1867
213:1612 214:745 215:62 216:4805 217:1415 218:526
219:373 220:1201 221:449 222:319 223:93
End of report
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