Routing Table Report 04:00 +10GMT Wed 02 Mar, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 348649
Prefixes after maximum aggregation: 157261
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 171994
Total ASes present in the Internet Routing Table: 35963
Prefixes per ASN: 9.69
Origin-only ASes present in the Internet Routing Table: 31004
Origin ASes announcing only one prefix: 14933
Transit ASes present in the Internet Routing Table: 4959
Transit-only ASes present in the Internet Routing Table: 123
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: 356
Unregistered ASNs in the Routing Table: 151
Number of 32-bit ASNs allocated by the RIRs: 1155
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: 200
Number of addresses announced to Internet: 2366667488
Equivalent to 141 /8s, 16 /16s and 122 /24s
Percentage of available address space announced: 63.9
Percentage of allocated address space announced: 63.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 88.4
Total number of prefixes smaller than registry allocations: 144533
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 86751
Total APNIC prefixes after maximum aggregation: 29580
APNIC Deaggregation factor: 2.93
Prefixes being announced from the APNIC address blocks: 83552
Unique aggregates announced from the APNIC address blocks: 36069
APNIC Region origin ASes present in the Internet Routing Table: 4342
APNIC Prefixes per ASN: 19.24
APNIC Region origin ASes announcing only one prefix: 1200
APNIC Region transit ASes present in the Internet Routing Table: 690
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 592205088
Equivalent to 35 /8s, 76 /16s and 85 /24s
Percentage of available APNIC address space announced: 75.1
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, 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: 139761
Total ARIN prefixes after maximum aggregation: 71575
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 110384
Unique aggregates announced from the ARIN address blocks: 44904
ARIN Region origin ASes present in the Internet Routing Table: 14211
ARIN Prefixes per ASN: 7.77
ARIN Region origin ASes announcing only one prefix: 5392
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: 787570304
Equivalent to 46 /8s, 241 /16s and 94 /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: 82411
Total RIPE prefixes after maximum aggregation: 46788
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 75696
Unique aggregates announced from the RIPE address blocks: 49304
RIPE Region origin ASes present in the Internet Routing Table: 15361
RIPE Prefixes per ASN: 4.93
RIPE Region origin ASes announcing only one prefix: 7780
RIPE Region transit ASes present in the Internet Routing Table: 2387
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 461279040
Equivalent to 27 /8s, 126 /16s and 143 /24s
Percentage of available RIPE address space announced: 74.3
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: 31969
Total LACNIC prefixes after maximum aggregation: 7385
LACNIC Deaggregation factor: 4.33
Prefixes being announced from the LACNIC address blocks: 30826
Unique aggregates announced from the LACNIC address blocks: 16075
LACNIC Region origin ASes present in the Internet Routing Table: 1434
LACNIC Prefixes per ASN: 21.50
LACNIC Region origin ASes announcing only one prefix: 430
LACNIC Region transit ASes present in the Internet Routing Table: 259
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 81004928
Equivalent to 4 /8s, 212 /16s and 9 /24s
Percentage of available LACNIC address space announced: 53.6
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: 7542
Total AfriNIC prefixes after maximum aggregation: 1824
AfriNIC Deaggregation factor: 4.13
Prefixes being announced from the AfriNIC address blocks: 5949
Unique aggregates announced from the AfriNIC address blocks: 1835
AfriNIC Region origin ASes present in the Internet Routing Table: 433
AfriNIC Prefixes per ASN: 13.74
AfriNIC Region origin ASes announcing only one prefix: 131
AfriNIC Region transit ASes present in the Internet Routing Table: 93
Average AfriNIC Region AS path length visible: 5.5
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 21872128
Equivalent to 1 /8s, 77 /16s and 190 /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 2419 9501 886 Korea Telecom (KIX)
7545 1607 302 86 TPG Internet Pty Ltd
4755 1420 634 164 TATA Communications formerly
17974 1410 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 933 117 140 Reliance Infocom Ltd Internet
9829 889 758 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 3686 3855 262 bellsouth.net, inc.
4323 2601 1109 403 Time Warner Telecom
1785 1787 697 131 PaeTec Communications, Inc.
19262 1786 4954 284 Verizon Global Networks
20115 1528 1535 647 Charter Communications
6478 1524 296 105 AT&T Worldnet Services
18566 1447 321 156 Covad Communications
7018 1361 6705 883 AT&T WorldNet Services
2386 1295 537 938 AT&T Data Communications Serv
11492 1285 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 465 98 145 BILISIM TELEKOM
3292 447 1996 388 TDC Tele Danmark
8866 442 133 23 Bulgarian Telecommunication C
20940 412 98 316 Akamai Technologies European
8551 403 353 46 Bezeq International
3320 400 7604 349 Deutsche Telekom AG
702 395 1800 309 UUNET - Commercial IP service
3301 383 1822 341 TeliaNet Sweden
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 1353 2704 362 UniNet S.A. de C.V.
28573 1227 961 82 NET Servicos de Comunicao S.A
6503 1174 354 73 AVANTEL, S.A.
7303 910 464 145 Telecom Argentina Stet-France
14420 642 56 93 CORPORACION NACIONAL DE TELEC
22047 540 310 15 VTR PUNTO NET S.A.
3816 510 222 100 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 798 445 11 TEDATA
24863 771 147 39 LINKdotNET AS number
15475 473 90 12 Nile Online
36992 300 271 14 Etisalat MISR
3741 265 987 227 The Internet Solution
33776 230 13 5 Starcomms Nigeria Limited
24835 218 78 10 RAYA Telecom - Egypt
6713 205 199 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 3686 3855 262 bellsouth.net, inc.
4323 2601 1109 403 Time Warner Telecom
4766 2419 9501 886 Korea Telecom (KIX)
1785 1787 697 131 PaeTec Communications, Inc.
19262 1786 4954 284 Verizon Global Networks
7545 1607 302 86 TPG Internet Pty Ltd
20115 1528 1535 647 Charter Communications
6478 1524 296 105 AT&T Worldnet Services
18566 1447 321 156 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 2601 2198 Time Warner Telecom
1785 1787 1656 PaeTec Communications, Inc.
4766 2419 1533 Korea Telecom (KIX)
7545 1607 1521 TPG Internet Pty Ltd
19262 1786 1502 Verizon Global Networks
6478 1524 1419 AT&T Worldnet Services
17974 1410 1381 PT TELEKOMUNIKASI INDONESIA
18566 1447 1291 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
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
31.184.128.0/18 51074 Gostaresh Ertebatate Mabna Co
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<<
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 /11:72 /12:215
/13:444 /14:765 /15:1370 /16:11527 /17:5669 /18:9361
/19:18907 /20:24456 /21:25026 /22:33347 /23:31847 /24:182150
/25:1143 /26:1384 /27:714 /28:170 /29:16 /30:3
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2274 3686 bellsouth.net, inc.
6478 1478 1524 AT&T Worldnet Services
18566 1425 1447 Covad Communications
4323 1402 2601 Time Warner Telecom
10620 1274 1383 TVCABLE BOGOTA
11492 1242 1285 Cable One
7011 1056 1157 Citizens Utilities
1785 1055 1787 PaeTec Communications, Inc.
6503 956 1174 AVANTEL, S.A.
19262 898 1786 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:259 2:43 4:13 5:1 8:336 12:2010
13:1 14:414 15:15 16:3 17:8 20:9
23:1 24:1495 27:595 31:1 32:60 33:4
34:2 37:1 38:708 40:101 41:2324 44:3
46:641 47:4 49:154 50:99 52:12 55:2
56:2 57:31 58:861 59:477 60:384 61:1108
62:1044 63:1929 64:3844 65:2359 66:4257 67:1779
68:1066 69:2871 70:731 71:399 72:1990 73:1
74:2349 75:292 76:346 77:871 78:696 79:444
80:1071 81:812 82:523 83:463 84:634 85:1046
86:575 87:746 88:354 89:1578 90:158 91:3538
92:493 93:1051 94:1205 95:764 96:456 97:250
98:789 99:33 101:33 107:4 108:118 109:903
110:475 111:721 112:312 113:387 114:507 115:657
116:954 117:681 118:685 119:1036 120:248 121:694
122:1621 123:1058 124:1290 125:1259 128:266 129:156
130:172 131:561 132:108 133:20 134:211 135:49
136:215 137:146 138:294 139:110 140:488 141:203
142:373 143:386 144:489 145:51 146:438 147:203
148:633 149:273 150:168 151:229 152:297 153:180
154:3 155:377 156:176 157:344 158:128 159:381
160:314 161:209 162:279 163:155 164:485 165:343
166:502 167:409 168:728 169:157 170:758 171:69
172:2 173:1227 174:507 175:320 176:1 177:33
178:772 180:812 181:4 182:389 183:242 184:215
186:1023 187:831 188:905 189:1043 190:4598 192:5770
193:4802 194:3514 195:2962 196:1193 197:4 198:3586
199:3841 200:5597 201:1577 202:8281 203:8456 204:4086
205:2292 206:2647 207:3075 208:3918 209:3473 210:2640
211:1349 212:1930 213:1737 214:759 215:63 216:4858
217:1653 218:546 219:378 220:1202 221:452 222:313
223:104
End of report
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