Routing Table Report 04:00 +10GMT Fri 17 Dec, 2010
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 338617
Prefixes after maximum aggregation: 152961
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 166617
Total ASes present in the Internet Routing Table: 35496
Prefixes per ASN: 9.54
Origin-only ASes present in the Internet Routing Table: 30565
Origin ASes announcing only one prefix: 14926
Transit ASes present in the Internet Routing Table: 4931
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: 326
Unregistered ASNs in the Routing Table: 128
Number of 32-bit ASNs allocated by the RIRs: 957
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: 189
Number of addresses announced to Internet: 2338623648
Equivalent to 139 /8s, 100 /16s and 144 /24s
Percentage of available address space announced: 63.1
Percentage of allocated address space announced: 65.2
Percentage of available address space allocated: 96.8
Percentage of address space in use by end-sites: 86.7
Total number of prefixes smaller than registry allocations: 139375
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 83364
Total APNIC prefixes after maximum aggregation: 28377
APNIC Deaggregation factor: 2.94
Prefixes being announced from the APNIC address blocks: 80312
Unique aggregates announced from the APNIC address blocks: 34977
APNIC Region origin ASes present in the Internet Routing Table: 4270
APNIC Prefixes per ASN: 18.81
APNIC Region origin ASes announcing only one prefix: 1202
APNIC Region transit ASes present in the Internet Routing Table: 694
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 20
Number of APNIC addresses announced to Internet: 575460384
Equivalent to 34 /8s, 76 /16s and 212 /24s
Percentage of available APNIC address space announced: 78.0
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, 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: 136954
Total ARIN prefixes after maximum aggregation: 69977
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 107916
Unique aggregates announced from the ARIN address blocks: 43950
ARIN Region origin ASes present in the Internet Routing Table: 14085
ARIN Prefixes per ASN: 7.66
ARIN Region origin ASes announcing only one prefix: 5399
ARIN Region transit ASes present in the Internet Routing Table: 1493
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 742201216
Equivalent to 44 /8s, 61 /16s and 23 /24s
Percentage of available ARIN address space announced: 62.3
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, 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: 79431
Total RIPE prefixes after maximum aggregation: 45439
RIPE Deaggregation factor: 1.75
Prefixes being announced from the RIPE address blocks: 72928
Unique aggregates announced from the RIPE address blocks: 47148
RIPE Region origin ASes present in the Internet Routing Table: 15124
RIPE Prefixes per ASN: 4.82
RIPE Region origin ASes announcing only one prefix: 7750
RIPE Region transit ASes present in the Internet Routing Table: 2343
Average RIPE Region AS path length visible: 4.5
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 450987136
Equivalent to 26 /8s, 225 /16s and 132 /24s
Percentage of available RIPE address space announced: 74.7
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, 196608-197631
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: 30990
Total LACNIC prefixes after maximum aggregation: 7133
LACNIC Deaggregation factor: 4.34
Prefixes being announced from the LACNIC address blocks: 29715
Unique aggregates announced from the LACNIC address blocks: 15459
LACNIC Region origin ASes present in the Internet Routing Table: 1406
LACNIC Prefixes per ASN: 21.13
LACNIC Region origin ASes announcing only one prefix: 437
LACNIC Region transit ASes present in the Internet Routing Table: 252
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 78639360
Equivalent to 4 /8s, 175 /16s and 241 /24s
Percentage of available LACNIC address space announced: 58.6
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: 7640
Total AfriNIC prefixes after maximum aggregation: 1917
AfriNIC Deaggregation factor: 3.99
Prefixes being announced from the AfriNIC address blocks: 5950
Unique aggregates announced from the AfriNIC address blocks: 1764
AfriNIC Region origin ASes present in the Internet Routing Table: 429
AfriNIC Prefixes per ASN: 13.87
AfriNIC Region origin ASes announcing only one prefix: 138
AfriNIC Region transit ASes present in the Internet Routing Table: 93
Average AfriNIC Region AS path length visible: 5.1
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 21616128
Equivalent to 1 /8s, 73 /16s and 214 /24s
Percentage of available AfriNIC address space announced: 42.9
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 1859 9453 517 Korea Telecom (KIX)
7545 1552 299 73 TPG Internet Pty Ltd
4755 1405 650 136 TATA Communications formerly
17974 1337 459 27 PT TELEKOMUNIKASI INDONESIA
9583 1041 76 488 Sify Limited
24560 1041 312 174 Bharti Airtel Ltd., Telemedia
4808 995 1717 272 CNCGROUP IP network: China169
17488 954 157 111 Hathway IP Over Cable Interne
18101 908 116 138 Reliance Infocom Ltd Internet
9829 822 696 31 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 3732 3871 268 bellsouth.net, inc.
4323 2642 1077 399 Time Warner Telecom
19262 1835 4873 283 Verizon Global Networks
1785 1785 697 132 PaeTec Communications, Inc.
20115 1514 1531 640 Charter Communications
6478 1435 290 51 AT&T Worldnet Services
7018 1360 5652 872 AT&T WorldNet Services
2386 1313 570 933 AT&T Data Communications Serv
22773 1257 2864 74 Cox Communications, Inc.
11492 1247 233 75 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 503 1763 310 UPC Distribution Services
3292 443 2010 386 TDC Tele Danmark
34984 440 96 133 BILISIM TELEKOM
8866 438 133 23 Bulgarian Telecommunication C
9121 435 1690 29 TTnet Autonomous System
9198 417 202 13 Kazakhtelecom Data Network Ad
8551 402 353 46 Bezeq International
12479 398 577 6 Uni2 Autonomous System
702 397 1864 311 UUNET - Commercial IP service
3320 390 7609 343 Deutsche Telekom AG
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
8151 1347 2617 367 UniNet S.A. de C.V.
10620 1343 250 154 TVCABLE BOGOTA
28573 1203 930 97 NET Servicos de Comunicao S.A
6503 1175 355 80 AVANTEL, S.A.
7303 833 441 108 Telecom Argentina Stet-France
14420 584 49 88 CORPORACION NACIONAL DE TELEC
22047 564 310 15 VTR PUNTO NET S.A.
3816 494 216 101 Empresa Nacional de Telecomun
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 452 32 30 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 1075 445 10 TEDATA
24863 746 147 39 LINKdotNET AS number
36992 658 276 158 Etisalat MISR
3741 263 986 225 The Internet Solution
24835 217 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
29571 199 19 11 Ci Telecom Autonomous system
2018 196 277 64 Tertiary Education Network
33776 184 12 14 Starcomms Nigeria Limited
16637 161 440 88 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 3732 3871 268 bellsouth.net, inc.
4323 2642 1077 399 Time Warner Telecom
4766 1859 9453 517 Korea Telecom (KIX)
19262 1835 4873 283 Verizon Global Networks
1785 1785 697 132 PaeTec Communications, Inc.
7545 1552 299 73 TPG Internet Pty Ltd
20115 1514 1531 640 Charter Communications
6478 1435 290 51 AT&T Worldnet Services
4755 1405 650 136 TATA Communications formerly
7018 1360 5652 872 AT&T WorldNet Services
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 2642 2243 Time Warner Telecom
1785 1785 1653 PaeTec Communications, Inc.
19262 1835 1552 Verizon Global Networks
7545 1552 1479 TPG Internet Pty Ltd
6478 1435 1384 AT&T Worldnet Services
4766 1859 1342 Korea Telecom (KIX)
17974 1337 1310 PT TELEKOMUNIKASI INDONESIA
4755 1405 1269 TATA Communications formerly
10620 1343 1189 TVCABLE BOGOTA
22773 1257 1183 Cox Communications, Inc.
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
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
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 /8:20 /9:10 /10:25 /11:70 /12:212
/13:430 /14:753 /15:1344 /16:11384 /17:5525 /18:9210
/19:18659 /20:23970 /21:24248 /22:31843 /23:30848 /24:177250
/25:990 /26:1066 /27:581 /28:157 /29:12 /30:2
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2304 3732 bellsouth.net, inc.
4323 1430 2642 Time Warner Telecom
6478 1392 1435 AT&T Worldnet Services
10620 1235 1343 TVCABLE BOGOTA
11492 1204 1247 Cable One
18566 1076 1095 Covad Communications
7011 1070 1173 Citizens Utilities
1785 1060 1785 PaeTec Communications, Inc.
8452 971 1075 TEDATA
6503 960 1175 AVANTEL, S.A.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:133 2:12 4:13 5:1 8:317 12:2034
13:6 14:90 15:17 16:3 17:8 20:9
24:1429 27:489 32:61 33:5 34:2 36:1
37:1 38:714 40:102 41:2644 42:1 44:3
46:384 47:4 49:73 50:24 52:12 55:4
56:2 57:28 58:857 59:505 60:395 61:1105
62:1024 63:1937 64:3717 65:2320 66:4077 67:1757
68:992 69:2808 70:714 71:389 72:1945 73:1
74:2283 75:288 76:320 77:852 78:745 79:436
80:1058 81:797 82:513 83:444 84:630 85:1051
86:513 87:707 88:406 89:1587 90:146 91:3337
92:473 93:1008 94:1119 95:697 96:409 97:247
98:703 99:33 101:3 107:2 108:77 109:803
110:475 111:672 112:309 113:322 114:481 115:638
116:885 117:644 118:605 119:1034 120:198 121:710
122:1573 123:1024 124:1232 125:1212 128:231 129:153
130:170 131:564 132:234 133:20 134:206 135:50
136:212 137:148 138:290 139:109 140:480 141:197
142:351 143:518 144:488 145:52 146:424 147:188
148:638 149:327 150:150 151:230 152:297 153:172
154:3 155:372 156:166 157:338 158:126 159:369
160:315 161:196 162:276 163:163 164:434 165:335
166:470 167:417 168:736 169:151 170:727 171:67
172:2 173:1138 174:472 175:261 176:1 177:2
178:653 180:726 182:474 183:243 184:189 186:833
187:752 188:889 189:1029 190:4236 192:5772 193:4794
194:3473 195:2880 196:1192 197:1 198:3539 199:3681
200:5534 201:1586 202:8244 203:8377 204:4049 205:2325
206:2522 207:2970 208:3854 209:3483 210:2562 211:1318
212:1885 213:1703 214:742 215:62 216:4794 217:1620
218:523 219:390 220:1179 221:443 222:342 223:81
End of report
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