Routing Table Report 04:00 +10GMT Thu 03 Feb, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 343746
Prefixes after maximum aggregation: 155032
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 169818
Total ASes present in the Internet Routing Table: 35739
Prefixes per ASN: 9.62
Origin-only ASes present in the Internet Routing Table: 30806
Origin ASes announcing only one prefix: 14939
Transit ASes present in the Internet Routing Table: 4933
Transit-only ASes present in the Internet Routing Table: 122
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: 610
Unregistered ASNs in the Routing Table: 154
Number of 32-bit ASNs allocated by the RIRs: 1067
Prefixes from 32-bit ASNs in the Routing Table: 1
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 209
Number of addresses announced to Internet: 2352410688
Equivalent to 140 /8s, 54 /16s and 240 /24s
Percentage of available address space announced: 63.5
Percentage of allocated address space announced: 64.9
Percentage of available address space allocated: 97.7
Percentage of address space in use by end-sites: 88.0
Total number of prefixes smaller than registry allocations: 141769
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 85070
Total APNIC prefixes after maximum aggregation: 28789
APNIC Deaggregation factor: 2.95
Prefixes being announced from the APNIC address blocks: 81838
Unique aggregates announced from the APNIC address blocks: 35545
APNIC Region origin ASes present in the Internet Routing Table: 4319
APNIC Prefixes per ASN: 18.95
APNIC Region origin ASes announcing only one prefix: 1214
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: 586842656
Equivalent to 34 /8s, 250 /16s and 130 /24s
Percentage of available APNIC address space announced: 76.0
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, 39/8, 42/8, 43/8,
49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 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: 138168
Total ARIN prefixes after maximum aggregation: 70838
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 109063
Unique aggregates announced from the ARIN address blocks: 44524
ARIN Region origin ASes present in the Internet Routing Table: 14137
ARIN Prefixes per ASN: 7.71
ARIN Region origin ASes announcing only one prefix: 5396
ARIN Region transit ASes present in the Internet Routing Table: 1470
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 751697024
Equivalent to 44 /8s, 205 /16s and 252 /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: 81380
Total RIPE prefixes after maximum aggregation: 46235
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 74696
Unique aggregates announced from the RIPE address blocks: 48581
RIPE Region origin ASes present in the Internet Routing Table: 15248
RIPE Prefixes per ASN: 4.90
RIPE Region origin ASes announcing only one prefix: 7766
RIPE Region transit ASes present in the Internet Routing Table: 2367
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 455950144
Equivalent to 27 /8s, 45 /16s and 63 /24s
Percentage of available RIPE address space announced: 75.5
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: 31481
Total LACNIC prefixes after maximum aggregation: 7230
LACNIC Deaggregation factor: 4.35
Prefixes being announced from the LACNIC address blocks: 30240
Unique aggregates announced from the LACNIC address blocks: 15817
LACNIC Region origin ASes present in the Internet Routing Table: 1421
LACNIC Prefixes per ASN: 21.28
LACNIC Region origin ASes announcing only one prefix: 432
LACNIC Region transit ASes present in the Internet Routing Table: 248
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 80348032
Equivalent to 4 /8s, 202 /16s and 3 /24s
Percentage of available LACNIC address space announced: 59.9
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: 7427
Total AfriNIC prefixes after maximum aggregation: 1828
AfriNIC Deaggregation factor: 4.06
Prefixes being announced from the AfriNIC address blocks: 5876
Unique aggregates announced from the AfriNIC address blocks: 1799
AfriNIC Region origin ASes present in the Internet Routing Table: 431
AfriNIC Prefixes per ASN: 13.63
AfriNIC Region origin ASes announcing only one prefix: 130
AfriNIC Region transit ASes present in the Internet Routing Table: 93
Average AfriNIC Region AS path length visible: 5.3
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 21751296
Equivalent to 1 /8s, 75 /16s and 230 /24s
Percentage of available AfriNIC address space announced: 43.2
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 1610 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 1044 76 487 Sify Limited
4808 1034 2130 292 CNCGROUP IP network: China169
17488 950 162 103 Hathway IP Over Cable Interne
18101 927 117 144 Reliance Infocom Ltd Internet
9829 896 762 41 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 3708 3855 265 bellsouth.net, inc.
4323 2631 1109 403 Time Warner Telecom
19262 1840 4943 285 Verizon Global Networks
1785 1787 697 132 PaeTec Communications, Inc.
20115 1522 1532 642 Charter Communications
6478 1475 290 103 AT&T Worldnet Services
7018 1348 6657 872 AT&T WorldNet Services
2386 1289 553 931 AT&T Data Communications Serv
22773 1278 2865 78 Cox Communications, Inc.
11492 1264 235 77 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 97 137 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 1333 2640 359 UniNet S.A. de C.V.
28573 1240 961 82 NET Servicos de Comunicao S.A
6503 1152 355 78 AVANTEL, S.A.
7303 888 461 115 Telecom Argentina Stet-France
14420 618 54 90 CORPORACION NACIONAL DE TELEC
22047 568 310 15 VTR PUNTO NET S.A.
3816 525 220 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
8452 853 445 11 TEDATA
24863 762 147 39 LINKdotNET AS number
36992 633 329 19 Etisalat MISR
3741 264 987 226 The Internet Solution
24835 217 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
16637 152 438 87 MTN Network Solutions
36874 139 24 6 Cybersmart
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 3708 3855 265 bellsouth.net, inc.
4323 2631 1109 403 Time Warner Telecom
4766 1914 9485 525 Korea Telecom (KIX)
19262 1840 4943 285 Verizon Global Networks
1785 1787 697 132 PaeTec Communications, Inc.
7545 1610 301 83 TPG Internet Pty Ltd
20115 1522 1532 642 Charter Communications
6478 1475 290 103 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 2631 2228 Time Warner Telecom
1785 1787 1655 PaeTec Communications, Inc.
19262 1840 1555 Verizon Global Networks
7545 1610 1527 TPG Internet Pty Ltd
4766 1914 1389 Korea Telecom (KIX)
6478 1475 1372 AT&T Worldnet Services
17974 1390 1363 PT TELEKOMUNIKASI INDONESIA
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
/13:441 /14:767 /15:1359 /16:11481 /17:5622 /18:9278
/19:18804 /20:24284 /21:24653 /22:32768 /23:31419 /24:179686
/25:993 /26:1073 /27:586 /28:165 /29:16 /30:3
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2287 3708 bellsouth.net, inc.
6478 1429 1475 AT&T Worldnet Services
4323 1419 2631 Time Warner Telecom
10620 1249 1358 TVCABLE BOGOTA
11492 1220 1264 Cable One
18566 1123 1144 Covad Communications
1785 1058 1787 PaeTec Communications, Inc.
7011 1035 1135 Citizens Utilities
19262 953 1840 Verizon Global Networks
6503 936 1152 AVANTEL, S.A.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:169 2:33 4:13 5:1 8:332 12:2025
13:1 14:390 15:15 16:3 17:8 20:9
23:1 24:1466 27:570 32:61 33:5 34:2
37:1 38:694 40:101 41:2369 44:3 46:549
47:5 49:142 50:82 52:12 55:6 56:2
57:30 58:888 59:483 60:391 61:1116 62:1061
63:1915 64:3750 65:2332 66:4084 67:1751 68:1005
69:2870 70:716 71:395 72:1992 73:1 74:2315
75:293 76:322 77:845 78:699 79:442 80:1040
81:794 82:535 83:472 84:647 85:1049 86:526
87:728 88:356 89:1584 90:159 91:3446 92:494
93:1046 94:1184 95:769 96:413 97:249 98:759
99:33 101:23 107:3 108:82 109:857 110:471
111:695 112:311 113:352 114:492 115:640 116:911
117:675 118:656 119:1017 120:239 121:700 122:1611
123:1053 124:1268 125:1216 128:261 129:152 130:170
131:557 132:109 133:20 134:218 135:49 136:216
137:147 138:293 139:120 140:479 141:198 142:362
143:380 144:484 145:51 146:425 147:195 148:627
149:273 150:151 151:229 152:304 153:177 154:3
155:346 156:171 157:340 158:127 159:381 160:314
161:205 162:277 163:157 164:485 165:338 166:481
167:420 168:737 169:152 170:747 171:66 172:2
173:1258 174:518 175:313 176:1 177:12 178:773
180:776 182:337 183:249 184:208 186:978 187:793
188:910 189:1017 190:4375 192:5784 193:4801 194:3500
195:2933 196:1168 197:3 198:3564 199:3744 200:5560
201:1582 202:8258 203:8395 204:4098 205:2341 206:2587
207:3055 208:3870 209:3498 210:2638 211:1331 212:1873
213:1684 214:747 215:62 216:4804 217:1611 218:526
219:372 220:1201 221:449 222:319 223:93
End of report
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