Routing Table Report 04:00 +10GMT Wed 23 Feb, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 347671
Prefixes after maximum aggregation: 156909
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 171746
Total ASes present in the Internet Routing Table: 35925
Prefixes per ASN: 9.68
Origin-only ASes present in the Internet Routing Table: 30949
Origin ASes announcing only one prefix: 14960
Transit ASes present in the Internet Routing Table: 4976
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: 342
Unregistered ASNs in the Routing Table: 141
Number of 32-bit ASNs allocated by the RIRs: 1137
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: 198
Number of addresses announced to Internet: 2397649376
Equivalent to 142 /8s, 233 /16s and 57 /24s
Percentage of available address space announced: 64.7
Percentage of allocated address space announced: 64.7
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 88.1
Total number of prefixes smaller than registry allocations: 144132
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 86220
Total APNIC prefixes after maximum aggregation: 29428
APNIC Deaggregation factor: 2.93
Prefixes being announced from the APNIC address blocks: 83031
Unique aggregates announced from the APNIC address blocks: 35901
APNIC Region origin ASes present in the Internet Routing Table: 4333
APNIC Prefixes per ASN: 19.16
APNIC Region origin ASes announcing only one prefix: 1204
APNIC Region transit ASes present in the Internet Routing Table: 693
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 20
Number of APNIC addresses announced to Internet: 590677280
Equivalent to 35 /8s, 53 /16s and 5 /24s
Percentage of available APNIC address space announced: 74.9
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: 139949
Total ARIN prefixes after maximum aggregation: 71570
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 110644
Unique aggregates announced from the ARIN address blocks: 45034
ARIN Region origin ASes present in the Internet Routing Table: 14214
ARIN Prefixes per ASN: 7.78
ARIN Region origin ASes announcing only one prefix: 5407
ARIN Region transit ASes present in the Internet Routing Table: 1474
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 787564416
Equivalent to 46 /8s, 241 /16s and 71 /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: 82309
Total RIPE prefixes after maximum aggregation: 46648
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 75603
Unique aggregates announced from the RIPE address blocks: 49260
RIPE Region origin ASes present in the Internet Routing Table: 15330
RIPE Prefixes per ASN: 4.93
RIPE Region origin ASes announcing only one prefix: 7782
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: 460559936
Equivalent to 27 /8s, 115 /16s and 150 /24s
Percentage of available RIPE address space announced: 74.2
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: 31693
Total LACNIC prefixes after maximum aggregation: 7339
LACNIC Deaggregation factor: 4.32
Prefixes being announced from the LACNIC address blocks: 30473
Unique aggregates announced from the LACNIC address blocks: 15889
LACNIC Region origin ASes present in the Internet Routing Table: 1431
LACNIC Prefixes per ASN: 21.29
LACNIC Region origin ASes announcing only one prefix: 435
LACNIC Region transit ASes present in the Internet Routing Table: 261
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 80825216
Equivalent to 4 /8s, 209 /16s and 75 /24s
Percentage of available LACNIC address space announced: 53.5
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: 7284
Total AfriNIC prefixes after maximum aggregation: 1810
AfriNIC Deaggregation factor: 4.02
Prefixes being announced from the AfriNIC address blocks: 5718
Unique aggregates announced from the AfriNIC address blocks: 1829
AfriNIC Region origin ASes present in the Internet Routing Table: 436
AfriNIC Prefixes per ASN: 13.11
AfriNIC Region origin ASes announcing only one prefix: 132
AfriNIC Region transit ASes present in the Internet Routing Table: 95
Average AfriNIC Region AS path length visible: 5.5
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 21886464
Equivalent to 1 /8s, 77 /16s and 246 /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 2351 9498 855 Korea Telecom (KIX)
7545 1623 302 86 TPG Internet Pty Ltd
4755 1418 634 164 TATA Communications formerly
17974 1406 475 29 PT TELEKOMUNIKASI INDONESIA
24560 1115 323 184 Bharti Airtel Ltd., Telemedia
9583 1044 77 488 Sify Limited
4808 1042 2142 294 CNCGROUP IP network: China169
17488 943 162 103 Hathway IP Over Cable Interne
18101 931 117 139 Reliance Infocom Ltd Internet
9829 897 763 42 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 3693 3855 261 bellsouth.net, inc.
4323 2615 1109 405 Time Warner Telecom
19262 1843 4955 283 Verizon Global Networks
1785 1784 697 131 PaeTec Communications, Inc.
20115 1526 1534 646 Charter Communications
6478 1518 296 79 AT&T Worldnet Services
18566 1440 321 160 Covad Communications
7018 1367 6674 880 AT&T WorldNet Services
2386 1297 553 934 AT&T Data Communications Serv
11492 1280 236 73 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 468 267 15 Kazakhtelecom Data Network Ad
34984 464 98 144 BILISIM TELEKOM
3292 447 1996 388 TDC Tele Danmark
8866 440 133 23 Bulgarian Telecommunication C
3320 410 7620 357 Deutsche Telekom AG
20940 410 97 316 Akamai Technologies European
8551 403 353 46 Bezeq International
702 397 1801 310 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 1374 255 166 TVCABLE BOGOTA
8151 1351 2682 358 UniNet S.A. de C.V.
28573 1232 961 82 NET Servicos de Comunicao S.A
6503 1166 354 73 AVANTEL, S.A.
7303 907 464 145 Telecom Argentina Stet-France
14420 638 57 92 CORPORACION NACIONAL DE TELEC
22047 545 310 15 VTR PUNTO NET S.A.
3816 509 221 98 Empresa Nacional de Telecomun
7738 478 922 30 Telecomunicacoes da Bahia S.A
13489 462 209 121 Orbitel S.A. E.S.P.
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
24863 688 147 39 LINKdotNET AS number
8452 654 445 11 TEDATA
15475 485 90 12 Nile Online
36992 303 271 14 Etisalat MISR
3741 264 987 226 The Internet Solution
24835 220 78 10 RAYA Telecom - Egypt
6713 205 199 12 Itissalat Al-MAGHRIB
33776 201 12 15 Starcomms Nigeria Limited
29571 192 17 11 Ci Telecom Autonomous system
16637 154 439 89 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 3693 3855 261 bellsouth.net, inc.
4323 2615 1109 405 Time Warner Telecom
4766 2351 9498 855 Korea Telecom (KIX)
19262 1843 4955 283 Verizon Global Networks
1785 1784 697 131 PaeTec Communications, Inc.
7545 1623 302 86 TPG Internet Pty Ltd
20115 1526 1534 646 Charter Communications
6478 1518 296 79 AT&T Worldnet Services
18566 1440 321 160 Covad Communications
4755 1418 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 2615 2210 Time Warner Telecom
1785 1784 1653 PaeTec Communications, Inc.
19262 1843 1560 Verizon Global Networks
7545 1623 1537 TPG Internet Pty Ltd
4766 2351 1496 Korea Telecom (KIX)
6478 1518 1439 AT&T Worldnet Services
17974 1406 1377 PT TELEKOMUNIKASI INDONESIA
18566 1440 1280 Covad Communications
4755 1418 1254 TATA Communications formerly
10620 1374 1208 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
31.24.0.0/21 16082 Spitfire Digital Networks Aut
31.24.8.0/21 8758 Dolphins Network Systems AG
31.24.32.0/21 43082 RIPE Network Coordination Cen
31.24.40.0/21 43988 RIPE Network Coordination Cen
31.28.32.0/19 8439 AIST Autonomous System
37.0.0.0/16 12654 RIPE NCC RIS Project
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 /8:21 /9:10 /10:26 /11:72 /12:215
/13:446 /14:764 /15:1373 /16:11511 /17:5659 /18:9339
/19:18864 /20:24417 /21:24934 /22:33175 /23:31708 /24:181793
/25:1119 /26:1332 /27:693 /28:173 /29:16 /30:3
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2280 3693 bellsouth.net, inc.
6478 1472 1518 AT&T Worldnet Services
18566 1418 1440 Covad Communications
4323 1407 2615 Time Warner Telecom
10620 1265 1374 TVCABLE BOGOTA
11492 1237 1280 Cable One
7011 1057 1160 Citizens Utilities
1785 1054 1784 PaeTec Communications, Inc.
19262 954 1843 Verizon Global Networks
6503 950 1166 AVANTEL, S.A.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:223 2:42 4:13 5:1 8:335 12:2031
13:1 14:409 15:15 16:3 17:8 20:9
23:1 24:1488 27:589 32:60 33:4 34:2
37:1 38:706 40:101 41:2210 44:3 46:653
47:4 49:152 50:93 52:12 55:2 56:2
57:31 58:863 59:475 60:383 61:1105 62:1048
63:1940 64:3853 65:2354 66:4243 67:1784 68:1028
69:2929 70:737 71:405 72:2014 73:1 74:2348
75:292 76:346 77:872 78:708 79:448 80:1060
81:820 82:523 83:477 84:632 85:1046 86:570
87:748 88:354 89:1577 90:156 91:3528 92:490
93:1046 94:1208 95:769 96:455 97:251 98:820
99:33 101:31 107:3 108:88 109:932 110:481
111:717 112:314 113:372 114:499 115:652 116:947
117:680 118:675 119:1025 120:242 121:698 122:1621
123:1053 124:1290 125:1257 128:265 129:156 130:170
131:568 132:109 133:20 134:220 135:49 136:215
137:147 138:294 139:119 140:493 141:203 142:359
143:382 144:487 145:51 146:438 147:217 148:637
149:275 150:167 151:229 152:298 153:179 154:3
155:359 156:176 157:341 158:130 159:380 160:315
161:207 162:275 163:158 164:484 165:337 166:502
167:421 168:743 169:150 170:756 171:69 172:2
173:1322 174:532 175:320 176:1 177:14 178:775
180:812 181:2 182:367 183:248 184:213 186:1014
187:803 188:892 189:1055 190:4350 192:5808 193:4793
194:3501 195:2949 196:1190 197:3 198:3573 199:3841
200:5576 201:1574 202:8281 203:8438 204:4095 205:2339
206:2640 207:3082 208:3906 209:3491 210:2638 211:1341
212:1936 213:1735 214:766 215:63 216:4841 217:1634
218:546 219:360 220:1201 221:452 222:307 223:98
End of report
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