Routing Table Report 04:00 +10GMT Wed 26 Jan, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 343202
Prefixes after maximum aggregation: 154704
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 169303
Total ASes present in the Internet Routing Table: 35717
Prefixes per ASN: 9.61
Origin-only ASes present in the Internet Routing Table: 30791
Origin ASes announcing only one prefix: 14965
Transit ASes present in the Internet Routing Table: 4926
Transit-only ASes present in the Internet Routing Table: 120
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: 321
Unregistered ASNs in the Routing Table: 127
Number of 32-bit ASNs allocated by the RIRs: 1037
Prefixes from 32-bit ASNs in the Routing Table: 5
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 210
Number of addresses announced to Internet: 2347936736
Equivalent to 139 /8s, 242 /16s and 171 /24s
Percentage of available address space announced: 63.3
Percentage of allocated address space announced: 65.4
Percentage of available address space allocated: 96.8
Percentage of address space in use by end-sites: 87.9
Total number of prefixes smaller than registry allocations: 141206
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 85181
Total APNIC prefixes after maximum aggregation: 28800
APNIC Deaggregation factor: 2.96
Prefixes being announced from the APNIC address blocks: 81957
Unique aggregates announced from the APNIC address blocks: 35516
APNIC Region origin ASes present in the Internet Routing Table: 4315
APNIC Prefixes per ASN: 18.99
APNIC Region origin ASes announcing only one prefix: 1218
APNIC Region transit ASes present in the Internet Routing Table: 691
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 20
Number of APNIC addresses announced to Internet: 583600928
Equivalent to 34 /8s, 201 /16s and 11 /24s
Percentage of available APNIC address space announced: 79.1
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: 138051
Total ARIN prefixes after maximum aggregation: 70651
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 108886
Unique aggregates announced from the ARIN address blocks: 44392
ARIN Region origin ASes present in the Internet Routing Table: 14139
ARIN Prefixes per ASN: 7.70
ARIN Region origin ASes announcing only one prefix: 5402
ARIN Region transit ASes present in the Internet Routing Table: 1469
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 750288512
Equivalent to 44 /8s, 184 /16s and 126 /24s
Percentage of available ARIN address space announced: 63.0
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, 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: 80845
Total RIPE prefixes after maximum aggregation: 46087
RIPE Deaggregation factor: 1.75
Prefixes being announced from the RIPE address blocks: 74222
Unique aggregates announced from the RIPE address blocks: 48176
RIPE Region origin ASes present in the Internet Routing Table: 15233
RIPE Prefixes per ASN: 4.87
RIPE Region origin ASes announcing only one prefix: 7782
RIPE Region transit ASes present in the Internet Routing Table: 2369
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 28
Number of RIPE addresses announced to Internet: 456707392
Equivalent to 27 /8s, 56 /16s and 205 /24s
Percentage of available RIPE address space announced: 75.6
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: 31440
Total LACNIC prefixes after maximum aggregation: 7221
LACNIC Deaggregation factor: 4.35
Prefixes being announced from the LACNIC address blocks: 30224
Unique aggregates announced from the LACNIC address blocks: 15750
LACNIC Region origin ASes present in the Internet Routing Table: 1414
LACNIC Prefixes per ASN: 21.37
LACNIC Region origin ASes announcing only one prefix: 429
LACNIC Region transit ASes present in the Internet Routing Table: 249
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 79876736
Equivalent to 4 /8s, 194 /16s and 210 /24s
Percentage of available LACNIC address space announced: 59.5
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: 7457
Total AfriNIC prefixes after maximum aggregation: 1826
AfriNIC Deaggregation factor: 4.08
Prefixes being announced from the AfriNIC address blocks: 5828
Unique aggregates announced from the AfriNIC address blocks: 1784
AfriNIC Region origin ASes present in the Internet Routing Table: 435
AfriNIC Prefixes per ASN: 13.40
AfriNIC Region origin ASes announcing only one prefix: 134
AfriNIC Region transit ASes present in the Internet Routing Table: 95
Average AfriNIC Region AS path length visible: 5.5
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 21659392
Equivalent to 1 /8s, 74 /16s and 127 /24s
Percentage of available AfriNIC address space announced: 43.0
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 1913 9485 524 Korea Telecom (KIX)
7545 1589 301 83 TPG Internet Pty Ltd
4755 1401 636 159 TATA Communications formerly
17974 1387 467 27 PT TELEKOMUNIKASI INDONESIA
24560 1095 317 181 Bharti Airtel Ltd., Telemedia
9583 1043 76 486 Sify Limited
4808 1020 2108 287 CNCGROUP IP network: China169
17488 949 162 103 Hathway IP Over Cable Interne
18101 922 117 142 Reliance Infocom Ltd Internet
9829 858 729 52 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 3710 3855 266 bellsouth.net, inc.
4323 2641 1077 403 Time Warner Telecom
19262 1840 4943 284 Verizon Global Networks
1785 1791 697 134 PaeTec Communications, Inc.
20115 1526 1530 638 Charter Communications
6478 1472 291 79 AT&T Worldnet Services
7018 1366 6674 879 AT&T WorldNet Services
2386 1298 553 934 AT&T Data Communications Serv
22773 1274 2864 77 Cox Communications, Inc.
11492 1268 235 73 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 502 1763 308 UPC Distribution Services
9198 465 266 14 Kazakhtelecom Data Network Ad
34984 457 97 137 BILISIM TELEKOM
3292 444 2010 387 TDC Tele Danmark
8866 438 133 23 Bulgarian Telecommunication C
12479 408 577 6 Uni2 Autonomous System
3320 403 7619 352 Deutsche Telekom AG
8551 402 353 46 Bezeq International
702 396 1816 309 UUNET - Commercial IP service
20940 393 92 303 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 1357 252 165 TVCABLE BOGOTA
8151 1329 2617 359 UniNet S.A. de C.V.
28573 1250 959 82 NET Servicos de Comunicao S.A
6503 1149 355 78 AVANTEL, S.A.
7303 886 461 113 Telecom Argentina Stet-France
14420 604 50 89 CORPORACION NACIONAL DE TELEC
22047 567 310 15 VTR PUNTO NET S.A.
3816 521 222 102 Empresa Nacional de Telecomun
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 455 33 33 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
8452 760 445 11 TEDATA
24863 754 147 39 LINKdotNET AS number
36992 676 361 20 Etisalat MISR
3741 264 987 226 The Internet Solution
24835 216 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
33776 194 12 15 Starcomms Nigeria Limited
29571 192 17 11 Ci Telecom Autonomous system
2018 167 277 64 Tertiary Education Network
16637 161 440 90 MTN Network Solutions
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 3710 3855 266 bellsouth.net, inc.
4323 2641 1077 403 Time Warner Telecom
4766 1913 9485 524 Korea Telecom (KIX)
19262 1840 4943 284 Verizon Global Networks
1785 1791 697 134 PaeTec Communications, Inc.
7545 1589 301 83 TPG Internet Pty Ltd
20115 1526 1530 638 Charter Communications
6478 1472 291 79 AT&T Worldnet Services
4755 1401 636 159 TATA Communications formerly
17974 1387 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 2641 2238 Time Warner Telecom
1785 1791 1657 PaeTec Communications, Inc.
19262 1840 1556 Verizon Global Networks
7545 1589 1506 TPG Internet Pty Ltd
6478 1472 1393 AT&T Worldnet Services
4766 1913 1389 Korea Telecom (KIX)
17974 1387 1360 PT TELEKOMUNIKASI INDONESIA
4755 1401 1242 TATA Communications formerly
22773 1274 1197 Cox Communications, Inc.
11492 1268 1195 Cable One
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
41.57.192.0/18 22750 BCSNET
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 /11:70 /12:215
/13:439 /14:763 /15:1359 /16:11479 /17:5607 /18:9284
/19:18928 /20:24193 /21:24641 /22:32517 /23:31451 /24:179379
/25:977 /26:1085 /27:574 /28:160 /29:16 /30:2
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2289 3710 bellsouth.net, inc.
4323 1429 2641 Time Warner Telecom
6478 1426 1472 AT&T Worldnet Services
10620 1248 1357 TVCABLE BOGOTA
11492 1224 1268 Cable One
18566 1118 1137 Covad Communications
7011 1068 1174 Citizens Utilities
1785 1061 1791 PaeTec Communications, Inc.
19262 953 1840 Verizon Global Networks
6503 935 1149 AVANTEL, S.A.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:166 2:30 4:13 5:1 8:330 12:2035
13:1 14:378 15:15 16:3 17:8 20:9
23:1 24:1456 27:544 32:61 33:5 34:2
36:1 37:1 38:694 40:101 41:2292 42:1
44:3 46:517 47:5 49:142 50:56 52:12
55:6 56:2 57:30 58:870 59:483 60:391
61:1134 62:1020 63:1922 64:3762 65:2333 66:4077
67:1753 68:997 69:2880 70:716 71:392 72:1992
73:1 74:2295 75:292 76:329 77:850 78:709
79:436 80:1040 81:791 82:530 83:458 84:642
85:1045 86:530 87:725 88:352 89:1564 90:157
91:3424 92:491 93:1048 94:1153 95:775 96:413
97:248 98:756 99:33 101:25 107:3 108:80
109:848 110:469 111:693 112:303 113:358 114:493
115:633 116:885 117:677 118:637 119:1011 120:240
121:709 122:1596 123:1045 124:1268 125:1213 128:247
129:157 130:172 131:579 132:110 133:20 134:217
135:49 136:216 137:146 138:292 139:119 140:486
141:198 142:364 143:383 144:485 145:51 146:425
147:195 148:626 149:273 150:152 151:230 152:303
153:175 154:3 155:346 156:173 157:341 158:126
159:377 160:313 161:201 162:277 163:156 164:469
165:334 166:600 167:422 168:741 169:151 170:747
171:68 172:2 173:1248 174:514 175:309 176:1
177:4 178:753 180:764 182:398 183:249 184:207
186:957 187:789 188:908 189:1036 190:4334 192:5778
193:4795 194:3498 195:2946 196:1230 197:2 198:3551
199:3744 200:5600 201:1574 202:8296 203:8402 204:4086
205:2336 206:2527 207:2966 208:3872 209:3474 210:2639
211:1334 212:1829 213:1719 214:755 215:62 216:4834
217:1625 218:544 219:374 220:1198 221:446 222:347
223:92
End of report
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