Routing Table Report 04:00 +10GMT Tue 15 Mar, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 350459
Prefixes after maximum aggregation: 157946
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 173185
Total ASes present in the Internet Routing Table: 36064
Prefixes per ASN: 9.72
Origin-only ASes present in the Internet Routing Table: 31093
Origin ASes announcing only one prefix: 14956
Transit ASes present in the Internet Routing Table: 4971
Transit-only ASes present in the Internet Routing Table: 125
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: 404
Unregistered ASNs in the Routing Table: 187
Number of 32-bit ASNs allocated by the RIRs: 1199
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: 246
Number of addresses announced to Internet: 2469046560
Equivalent to 147 /8s, 42 /16s and 169 /24s
Percentage of available address space announced: 66.6
Percentage of allocated address space announced: 66.6
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 89.1
Total number of prefixes smaller than registry allocations: 145282
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 87394
Total APNIC prefixes after maximum aggregation: 29753
APNIC Deaggregation factor: 2.94
Prefixes being announced from the APNIC address blocks: 84199
Unique aggregates announced from the APNIC address blocks: 36361
APNIC Region origin ASes present in the Internet Routing Table: 4348
APNIC Prefixes per ASN: 19.36
APNIC Region origin ASes announcing only one prefix: 1198
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: 595970336
Equivalent to 35 /8s, 133 /16s and 201 /24s
Percentage of available APNIC address space announced: 75.6
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: 140583
Total ARIN prefixes after maximum aggregation: 71750
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 111115
Unique aggregates announced from the ARIN address blocks: 45023
ARIN Region origin ASes present in the Internet Routing Table: 14247
ARIN Prefixes per ASN: 7.80
ARIN Region origin ASes announcing only one prefix: 5414
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: 796449280
Equivalent to 47 /8s, 120 /16s and 218 /24s
Percentage of available ARIN address space announced: 63.3
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: 82864
Total RIPE prefixes after maximum aggregation: 47178
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 76198
Unique aggregates announced from the RIPE address blocks: 49951
RIPE Region origin ASes present in the Internet Routing Table: 15418
RIPE Prefixes per ASN: 4.94
RIPE Region origin ASes announcing only one prefix: 7781
RIPE Region transit ASes present in the Internet Routing Table: 2400
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 481317120
Equivalent to 28 /8s, 176 /16s and 81 /24s
Percentage of available RIPE address space announced: 77.5
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, 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: 31905
Total LACNIC prefixes after maximum aggregation: 7343
LACNIC Deaggregation factor: 4.34
Prefixes being announced from the LACNIC address blocks: 30907
Unique aggregates announced from the LACNIC address blocks: 16135
LACNIC Region origin ASes present in the Internet Routing Table: 1432
LACNIC Prefixes per ASN: 21.58
LACNIC Region origin ASes announcing only one prefix: 433
LACNIC Region transit ASes present in the Internet Routing Table: 260
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 81408640
Equivalent to 4 /8s, 218 /16s and 50 /24s
Percentage of available LACNIC address space announced: 53.9
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: 7503
Total AfriNIC prefixes after maximum aggregation: 1818
AfriNIC Deaggregation factor: 4.13
Prefixes being announced from the AfriNIC address blocks: 5891
Unique aggregates announced from the AfriNIC address blocks: 1834
AfriNIC Region origin ASes present in the Internet Routing Table: 437
AfriNIC Prefixes per ASN: 13.48
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: 5.4
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 22065408
Equivalent to 1 /8s, 80 /16s and 177 /24s
Percentage of available AfriNIC address space announced: 32.9
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 2422 9508 892 Korea Telecom (KIX)
7545 1583 301 83 TPG Internet Pty Ltd
4755 1468 653 156 TATA Communications formerly
17974 1410 468 29 PT TELEKOMUNIKASI INDONESIA
24560 1129 324 186 Bharti Airtel Ltd., Telemedia
4808 1046 2142 294 CNCGROUP IP network: China169
9583 1046 76 489 Sify Limited
9829 1004 868 53 BSNL National Internet Backbo
17488 946 162 96 Hathway IP Over Cable Interne
18101 937 117 143 Reliance Infocom Ltd Internet
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 3677 3839 259 bellsouth.net, inc.
4323 2582 1093 402 Time Warner Telecom
19262 1830 4953 282 Verizon Global Networks
1785 1788 681 131 PaeTec Communications, Inc.
6478 1545 299 72 AT&T Worldnet Services
20115 1526 1534 650 Charter Communications
18566 1524 326 180 Covad Communications
7018 1366 6706 886 AT&T WorldNet Services
11492 1313 237 64 Cable One
2386 1291 536 931 AT&T Data Communications Serv
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 1780 318 UPC Distribution Services
9198 470 267 15 Kazakhtelecom Data Network Ad
3292 450 1996 389 TDC Tele Danmark
34984 450 95 201 BILISIM TELEKOM
8866 444 133 24 Bulgarian Telecommunication C
20940 411 98 314 Akamai Technologies European
3320 406 7604 352 Deutsche Telekom AG
8402 404 320 11 Corbina telecom
8551 403 353 46 Bezeq International
12479 401 577 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 1384 258 163 TVCABLE BOGOTA
8151 1236 2698 367 UniNet S.A. de C.V.
28573 1236 963 83 NET Servicos de Comunicao S.A
6503 1173 354 72 AVANTEL, S.A.
7303 897 463 134 Telecom Argentina Stet-France
14420 634 51 88 CORPORACION NACIONAL DE TELEC
22047 541 310 15 VTR PUNTO NET S.A.
3816 512 224 100 Empresa Nacional de Telecomun
11172 489 99 83 Servicios Alestra S.A de C.V
7738 479 922 30 Telecomunicacoes da Bahia 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 794 445 11 TEDATA
24863 773 147 39 LINKdotNET AS number
15475 419 90 8 Nile Online
36992 297 271 14 Etisalat MISR
3741 266 987 228 The Internet Solution
33776 230 13 5 Starcomms Nigeria Limited
24835 227 78 10 RAYA Telecom - Egypt
6713 204 199 11 Itissalat Al-MAGHRIB
29571 192 17 11 Ci Telecom Autonomous system
16637 139 422 84 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 3677 3839 259 bellsouth.net, inc.
4323 2582 1093 402 Time Warner Telecom
4766 2422 9508 892 Korea Telecom (KIX)
19262 1830 4953 282 Verizon Global Networks
1785 1788 681 131 PaeTec Communications, Inc.
7545 1583 301 83 TPG Internet Pty Ltd
6478 1545 299 72 AT&T Worldnet Services
20115 1526 1534 650 Charter Communications
18566 1524 326 180 Covad Communications
4755 1468 653 156 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 2582 2180 Time Warner Telecom
1785 1788 1657 PaeTec Communications, Inc.
19262 1830 1548 Verizon Global Networks
4766 2422 1530 Korea Telecom (KIX)
7545 1583 1500 TPG Internet Pty Ltd
6478 1545 1473 AT&T Worldnet Services
17974 1410 1381 PT TELEKOMUNIKASI INDONESIA
18566 1524 1344 Covad Communications
4755 1468 1312 TATA Communications formerly
11492 1313 1249 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
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
13317 UNALLOCATED 12.44.10.0/24 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 /9:11 /10:26 /11:73 /12:216
/13:447 /14:768 /15:1370 /16:11571 /17:5680 /18:9351
/19:19035 /20:24640 /21:25252 /22:33564 /23:32054 /24:183225
/25:1100 /26:1309 /27:694 /28:32 /29:9 /30:2
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2268 3677 bellsouth.net, inc.
18566 1503 1524 Covad Communications
6478 1499 1545 AT&T Worldnet Services
4323 1391 2582 Time Warner Telecom
10620 1275 1384 TVCABLE BOGOTA
11492 1270 1313 Cable One
7011 1064 1164 Citizens Utilities
1785 1055 1788 PaeTec Communications, Inc.
6503 953 1173 AVANTEL, S.A.
19262 941 1830 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:271 2:65 4:14 5:1 8:340 12:2021
13:1 14:432 15:15 16:3 17:8 20:9
23:3 24:1539 27:631 31:2 32:60 33:4
34:2 36:2 37:1 38:713 39:1 40:101
41:2310 42:13 44:3 46:715 47:4 49:164
50:202 52:13 55:2 56:2 57:32 58:860
59:495 60:387 61:1141 62:995 63:1923 64:3872
65:2353 66:4348 67:1776 68:1084 69:2893 70:703
71:399 72:2009 73:1 74:2350 75:285 76:342
77:845 78:698 79:453 80:1096 81:818 82:515
83:467 84:644 85:1045 86:576 87:751 88:353
89:1574 90:175 91:3625 92:489 93:1041 94:1218
95:782 96:471 97:252 98:801 99:34 101:63
106:1 107:4 108:129 109:906 110:477 111:718
112:321 113:380 114:494 115:714 116:968 117:677
118:716 119:1043 120:257 121:758 122:1615 123:1040
124:1296 125:1266 128:265 129:168 130:171 131:560
132:100 133:20 134:216 135:49 136:213 137:145
138:297 139:108 140:487 141:203 142:377 143:377
144:476 145:52 146:428 147:207 148:630 149:275
150:160 151:229 152:298 153:180 154:3 155:376
156:182 157:315 158:131 159:373 160:312 161:212
162:277 163:161 164:487 165:351 166:499 167:410
168:726 169:156 170:753 171:69 172:2 173:1264
174:517 175:325 177:35 178:804 180:817 181:4
182:383 183:241 184:233 186:1042 187:839 188:928
189:1028 190:4698 192:5753 193:4787 194:3490 195:2942
196:1198 197:4 198:3580 199:3857 200:5570 201:1574
202:8318 203:8477 204:4107 205:2302 206:2652 207:3051
208:3919 209:3478 210:2685 211:1351 212:1940 213:1708
214:762 215:63 216:4852 217:1649 218:553 219:380
220:1202 221:475 222:321 223:100
End of report
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