Routing Table Report 04:00 +10GMT Fri 04 Mar, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 348788
Prefixes after maximum aggregation: 157345
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 172030
Total ASes present in the Internet Routing Table: 35978
Prefixes per ASN: 9.69
Origin-only ASes present in the Internet Routing Table: 31006
Origin ASes announcing only one prefix: 14926
Transit ASes present in the Internet Routing Table: 4972
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: 370
Unregistered ASNs in the Routing Table: 158
Number of 32-bit ASNs allocated by the RIRs: 1163
Prefixes from 32-bit ASNs in the Routing Table: 2
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 258
Number of addresses announced to Internet: 2453671584
Equivalent to 146 /8s, 64 /16s and 14 /24s
Percentage of available address space announced: 66.2
Percentage of allocated address space announced: 66.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 88.9
Total number of prefixes smaller than registry allocations: 144542
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 86880
Total APNIC prefixes after maximum aggregation: 29683
APNIC Deaggregation factor: 2.93
Prefixes being announced from the APNIC address blocks: 83631
Unique aggregates announced from the APNIC address blocks: 36100
APNIC Region origin ASes present in the Internet Routing Table: 4342
APNIC Prefixes per ASN: 19.26
APNIC Region origin ASes announcing only one prefix: 1201
APNIC Region transit ASes present in the Internet Routing Table: 692
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 593928224
Equivalent to 35 /8s, 102 /16s and 160 /24s
Percentage of available APNIC address space announced: 75.3
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, 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: 139887
Total ARIN prefixes after maximum aggregation: 71553
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 110502
Unique aggregates announced from the ARIN address blocks: 44916
ARIN Region origin ASes present in the Internet Routing Table: 14216
ARIN Prefixes per ASN: 7.77
ARIN Region origin ASes announcing only one prefix: 5399
ARIN Region transit ASes present in the Internet Routing Table: 1473
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 787428480
Equivalent to 46 /8s, 239 /16s and 52 /24s
Percentage of available ARIN address space announced: 62.6
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: 82308
Total RIPE prefixes after maximum aggregation: 46827
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 75619
Unique aggregates announced from the RIPE address blocks: 49266
RIPE Region origin ASes present in the Internet Routing Table: 15376
RIPE Prefixes per ASN: 4.92
RIPE Region origin ASes announcing only one prefix: 7774
RIPE Region transit ASes present in the Internet Routing Table: 2388
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 478679808
Equivalent to 28 /8s, 136 /16s and 19 /24s
Percentage of available RIPE address space announced: 77.1
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: 31945
Total LACNIC prefixes after maximum aggregation: 7363
LACNIC Deaggregation factor: 4.34
Prefixes being announced from the LACNIC address blocks: 30806
Unique aggregates announced from the LACNIC address blocks: 16086
LACNIC Region origin ASes present in the Internet Routing Table: 1432
LACNIC Prefixes per ASN: 21.51
LACNIC Region origin ASes announcing only one prefix: 426
LACNIC Region transit ASes present in the Internet Routing Table: 263
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 81260672
Equivalent to 4 /8s, 215 /16s and 240 /24s
Percentage of available LACNIC address space announced: 53.8
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: 7551
Total AfriNIC prefixes after maximum aggregation: 1810
AfriNIC Deaggregation factor: 4.17
Prefixes being announced from the AfriNIC address blocks: 5937
Unique aggregates announced from the AfriNIC address blocks: 1830
AfriNIC Region origin ASes present in the Internet Routing Table: 432
AfriNIC Prefixes per ASN: 13.74
AfriNIC Region origin ASes announcing only one prefix: 126
AfriNIC Region transit ASes present in the Internet Routing Table: 95
Average AfriNIC Region AS path length visible: 5.4
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 21898752
Equivalent to 1 /8s, 78 /16s and 38 /24s
Percentage of available AfriNIC address space announced: 32.6
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 2417 9501 889 Korea Telecom (KIX)
7545 1602 301 83 TPG Internet Pty Ltd
4755 1420 634 164 TATA Communications formerly
17974 1404 475 29 PT TELEKOMUNIKASI INDONESIA
24560 1116 323 185 Bharti Airtel Ltd., Telemedia
4808 1046 2142 294 CNCGROUP IP network: China169
9583 1045 77 488 Sify Limited
17488 940 161 102 Hathway IP Over Cable Interne
18101 932 117 141 Reliance Infocom Ltd Internet
9829 887 757 51 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 3683 3855 260 bellsouth.net, inc.
4323 2595 1109 403 Time Warner Telecom
19262 1835 4954 284 Verizon Global Networks
1785 1789 697 131 PaeTec Communications, Inc.
20115 1527 1534 650 Charter Communications
6478 1524 296 103 AT&T Worldnet Services
18566 1518 325 180 Covad Communications
7018 1362 6705 883 AT&T WorldNet Services
2386 1295 537 938 AT&T Data Communications Serv
11492 1286 236 70 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 514 1780 319 UPC Distribution Services
9198 469 267 15 Kazakhtelecom Data Network Ad
34984 466 98 146 BILISIM TELEKOM
3292 447 1996 388 TDC Tele Danmark
8866 442 133 23 Bulgarian Telecommunication C
20940 412 98 316 Akamai Technologies European
3320 406 7604 354 Deutsche Telekom AG
8551 403 353 46 Bezeq International
702 396 1800 310 UUNET - Commercial IP service
12479 385 577 6 Uni2 Autonomous System
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 1383 257 166 TVCABLE BOGOTA
8151 1356 2698 362 UniNet S.A. de C.V.
28573 1224 961 83 NET Servicos de Comunicao S.A
6503 1180 354 73 AVANTEL, S.A.
7303 910 464 146 Telecom Argentina Stet-France
14420 644 56 93 CORPORACION NACIONAL DE TELEC
22047 541 310 15 VTR PUNTO NET S.A.
3816 512 224 97 Empresa Nacional de Telecomun
7738 479 922 30 Telecomunicacoes da Bahia S.A
11172 463 83 82 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
8452 806 445 11 TEDATA
24863 767 147 39 LINKdotNET AS number
15475 439 90 10 Nile Online
36992 301 271 14 Etisalat MISR
3741 265 987 227 The Internet Solution
33776 230 13 5 Starcomms Nigeria Limited
24835 221 78 10 RAYA Telecom - Egypt
6713 211 199 12 Itissalat Al-MAGHRIB
29571 192 17 11 Ci Telecom Autonomous system
16637 147 439 87 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 3683 3855 260 bellsouth.net, inc.
4323 2595 1109 403 Time Warner Telecom
4766 2417 9501 889 Korea Telecom (KIX)
19262 1835 4954 284 Verizon Global Networks
1785 1789 697 131 PaeTec Communications, Inc.
7545 1602 301 83 TPG Internet Pty Ltd
20115 1527 1534 650 Charter Communications
6478 1524 296 103 AT&T Worldnet Services
18566 1518 325 180 Covad Communications
4755 1420 634 164 TATA Communications formerly
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 2595 2192 Time Warner Telecom
1785 1789 1658 PaeTec Communications, Inc.
19262 1835 1551 Verizon Global Networks
4766 2417 1528 Korea Telecom (KIX)
7545 1602 1519 TPG Internet Pty Ltd
6478 1524 1421 AT&T Worldnet Services
17974 1404 1375 PT TELEKOMUNIKASI INDONESIA
18566 1518 1338 Covad Communications
4755 1420 1256 TATA Communications formerly
10620 1383 1217 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
1.5.0.0/16 38639 NTT Communications Corporatio
1.6.0.0/15 38639 NTT Communications Corporatio
1.8.0.0/16 38639 NTT Communications Corporatio
1.20.0.0/16 38639 NTT Communications Corporatio
1.32.0.0/16 38639 NTT Communications Corporatio
1.37.0.0/16 38639 NTT Communications Corporatio
1.187.0.0/16 38639 NTT Communications Corporatio
14.0.0.0/24 38639 NTT Communications Corporatio
14.0.1.0/24 38639 NTT Communications Corporatio
14.0.2.0/23 38639 NTT Communications Corporatio
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 /8:24 /9:10 /10:26 /11:72 /12:216
/13:444 /14:766 /15:1372 /16:11544 /17:5663 /18:9338
/19:18922 /20:24476 /21:25066 /22:33391 /23:31835 /24:182186
/25:1145 /26:1382 /27:714 /28:170 /29:16 /30:3
/31:0 /32:7
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2272 3683 bellsouth.net, inc.
18566 1495 1518 Covad Communications
6478 1478 1524 AT&T Worldnet Services
4323 1396 2595 Time Warner Telecom
10620 1274 1383 TVCABLE BOGOTA
11492 1243 1286 Cable One
7011 1057 1158 Citizens Utilities
1785 1055 1789 PaeTec Communications, Inc.
6503 962 1180 AVANTEL, S.A.
19262 947 1835 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:262 2:45 4:13 5:1 8:335 12:2029
13:1 14:421 15:15 16:3 17:8 20:9
23:1 24:1508 27:597 31:3 32:60 33:4
34:2 36:2 37:1 38:706 40:101 41:2307
42:13 44:3 46:615 47:4 49:158 50:101
52:13 55:3 56:2 57:32 58:861 59:477
60:384 61:1108 62:1022 63:1926 64:3849 65:2347
66:4310 67:1776 68:1067 69:2876 70:724 71:408
72:1998 73:1 74:2353 75:290 76:346 77:837
78:681 79:444 80:1070 81:794 82:521 83:462
84:634 85:1045 86:520 87:754 88:356 89:1565
90:163 91:3572 92:494 93:1051 94:1214 95:775
96:463 97:253 98:810 99:33 101:51 107:4
108:127 109:902 110:471 111:715 112:317 113:388
114:510 115:661 116:956 117:680 118:685 119:1037
120:248 121:698 122:1624 123:1053 124:1289 125:1259
128:266 129:157 130:172 131:561 132:108 133:20
134:210 135:49 136:215 137:146 138:295 139:118
140:486 141:203 142:374 143:385 144:488 145:51
146:437 147:204 148:638 149:273 150:167 151:229
152:298 153:180 154:3 155:376 156:177 157:344
158:127 159:382 160:312 161:208 162:278 163:156
164:486 165:344 166:499 167:408 168:728 169:157
170:758 171:69 172:2 173:1240 174:511 175:322
176:1 177:32 178:779 180:813 181:4 182:391
183:242 184:212 186:1033 187:844 188:901 189:1047
190:4569 192:5764 193:4798 194:3497 195:2962 196:1210
197:4 198:3563 199:3831 200:5571 201:1583 202:8271
203:8455 204:4102 205:2298 206:2649 207:3072 208:3908
209:3481 210:2638 211:1355 212:1930 213:1716 214:758
215:62 216:4859 217:1653 218:544 219:379 220:1203
221:475 222:319 223:104
End of report
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