Routing Table Report 04:00 +10GMT Tue 19 Jul, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 363703
Prefixes after maximum aggregation: 165442
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 180699
Total ASes present in the Internet Routing Table: 38199
Prefixes per ASN: 9.52
Origin-only ASes present in the Internet Routing Table: 31751
Origin ASes announcing only one prefix: 15265
Transit ASes present in the Internet Routing Table: 5187
Transit-only ASes present in the Internet Routing Table: 133
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 33
Max AS path prepend of ASN (22394) 27
Prefixes from unregistered ASNs in the Routing Table: 919
Unregistered ASNs in the Routing Table: 533
Number of 32-bit ASNs allocated by the RIRs: 1566
Number of 32-bit ASNs visible in the Routing Table: 1261
Prefixes from 32-bit ASNs in the Routing Table: 2898
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 122
Number of addresses announced to Internet: 2478230816
Equivalent to 147 /8s, 182 /16s and 205 /24s
Percentage of available address space announced: 66.9
Percentage of allocated address space announced: 66.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.1
Total number of prefixes smaller than registry allocations: 151661
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 90806
Total APNIC prefixes after maximum aggregation: 30339
APNIC Deaggregation factor: 2.99
Prefixes being announced from the APNIC address blocks: 87385
Unique aggregates announced from the APNIC address blocks: 37504
APNIC Region origin ASes present in the Internet Routing Table: 4518
APNIC Prefixes per ASN: 19.34
APNIC Region origin ASes announcing only one prefix: 1252
APNIC Region transit ASes present in the Internet Routing Table: 715
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 60
Number of APNIC addresses announced to Internet: 622192704
Equivalent to 37 /8s, 21 /16s and 232 /24s
Percentage of available APNIC address space announced: 78.9
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: 141448
Total ARIN prefixes after maximum aggregation: 73099
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113368
Unique aggregates announced from the ARIN address blocks: 46663
ARIN Region origin ASes present in the Internet Routing Table: 14486
ARIN Prefixes per ASN: 7.83
ARIN Region origin ASes announcing only one prefix: 5540
ARIN Region transit ASes present in the Internet Routing Table: 1525
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 30
Number of ARIN region 32-bit ASNs visible in the Routing Table: 13
Number of ARIN addresses announced to Internet: 802474112
Equivalent to 47 /8s, 212 /16s and 200 /24s
Percentage of available ARIN address space announced: 63.8
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: 86514
Total RIPE prefixes after maximum aggregation: 49228
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 79886
Unique aggregates announced from the RIPE address blocks: 52903
RIPE Region origin ASes present in the Internet Routing Table: 15801
RIPE Prefixes per ASN: 5.06
RIPE Region origin ASes announcing only one prefix: 7885
RIPE Region transit ASes present in the Internet Routing Table: 2495
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 33
Number of RIPE region 32-bit ASNs visible in the Routing Table: 920
Number of RIPE addresses announced to Internet: 479520064
Equivalent to 28 /8s, 148 /16s and 229 /24s
Percentage of available RIPE address space announced: 77.2
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: 33664
Total LACNIC prefixes after maximum aggregation: 7602
LACNIC Deaggregation factor: 4.43
Prefixes being announced from the LACNIC address blocks: 32768
Unique aggregates announced from the LACNIC address blocks: 17048
LACNIC Region origin ASes present in the Internet Routing Table: 1482
LACNIC Prefixes per ASN: 22.11
LACNIC Region origin ASes announcing only one prefix: 441
LACNIC Region transit ASes present in the Internet Routing Table: 273
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 264
Number of LACNIC addresses announced to Internet: 86092544
Equivalent to 5 /8s, 33 /16s and 171 /24s
Percentage of available LACNIC address space announced: 57.0
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: 8195
Total AfriNIC prefixes after maximum aggregation: 1965
AfriNIC Deaggregation factor: 4.17
Prefixes being announced from the AfriNIC address blocks: 6497
Unique aggregates announced from the AfriNIC address blocks: 1996
AfriNIC Region origin ASes present in the Internet Routing Table: 469
AfriNIC Prefixes per ASN: 13.85
AfriNIC Region origin ASes announcing only one prefix: 147
AfriNIC Region transit ASes present in the Internet Routing Table: 105
Average AfriNIC Region AS path length visible: 4.7
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 24443392
Equivalent to 1 /8s, 116 /16s and 250 /24s
Percentage of available AfriNIC address space announced: 36.4
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 2469 11044 937 Korea Telecom (KIX)
7545 1552 301 83 TPG Internet Pty Ltd
17974 1543 456 46 PT TELEKOMUNIKASI INDONESIA
4755 1505 635 170 TATA Communications formerly
7552 1298 1064 7 Vietel Corporation
24560 1153 336 187 Bharti Airtel Ltd., Telemedia
9829 1106 923 47 BSNL National Internet Backbo
9583 1064 78 504 Sify Limited
4808 1049 2092 299 CNCGROUP IP network: China169
17488 966 187 106 Hathway IP Over Cable Interne
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 3598 3818 241 bellsouth.net, inc.
18566 1913 365 241 Covad Communications
1785 1807 681 121 PaeTec Communications, Inc.
4323 1614 1082 400 Time Warner Telecom
20115 1594 1534 627 Charter Communications
19262 1410 4744 390 Verizon Global Networks
7018 1365 7069 892 AT&T WorldNet Services
22773 1352 2897 88 Cox Communications, Inc.
7029 1291 791 304 Windstream Communications Inc
2386 1259 521 908 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
34984 535 106 184 BILISIM TELEKOM
6830 510 1780 315 UPC Distribution Services
3292 468 2078 403 TDC Tele Danmark
20940 458 131 354 Akamai Technologies European
12479 456 593 7 Uni2 Autonomous System
8866 450 133 25 Bulgarian Telecommunication C
29049 432 32 47 AzerSat LLC.
3320 423 8151 369 Deutsche Telekom AG
8551 404 354 44 Bezeq International
702 399 1803 312 UUNET - Commercial IP service
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 1557 286 164 TVCABLE BOGOTA
8151 1435 2746 352 UniNet S.A. de C.V.
28573 1273 995 77 NET Servicos de Comunicao S.A
7303 1008 512 179 Telecom Argentina Stet-France
6503 749 354 74 AVANTEL, S.A.
14420 690 55 84 CORPORACION NACIONAL DE TELEC
22047 578 322 17 VTR PUNTO NET S.A.
3816 530 230 95 Empresa Nacional de Telecomun
7738 516 986 31 Telecomunicacoes da Bahia S.A
27947 508 53 53 Telconet 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
24863 793 147 36 LINKdotNET AS number
8452 788 445 11 TEDATA
15475 513 74 8 Nile Online
36992 315 415 14 Etisalat MISR
3741 261 937 223 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 226 13 5 Starcomms Nigeria Limited
24835 175 78 10 RAYA Telecom - Egypt
29571 158 17 11 Ci Telecom Autonomous system
16637 148 441 86 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 3598 3818 241 bellsouth.net, inc.
23456 2898 707 1561 32-bit ASN transition
4766 2469 11044 937 Korea Telecom (KIX)
18566 1913 365 241 Covad Communications
1785 1807 681 121 PaeTec Communications, Inc.
4323 1614 1082 400 Time Warner Telecom
20115 1594 1534 627 Charter Communications
10620 1557 286 164 TVCABLE BOGOTA
7545 1552 301 83 TPG Internet Pty Ltd
17974 1543 456 46 PT TELEKOMUNIKASI INDONESIA
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
1785 1807 1686 PaeTec Communications, Inc.
18566 1913 1672 Covad Communications
4766 2469 1532 Korea Telecom (KIX)
17974 1543 1497 PT TELEKOMUNIKASI INDONESIA
7545 1552 1469 TPG Internet Pty Ltd
10620 1557 1393 TVCABLE BOGOTA
23456 2898 1337 32-bit ASN transition
4755 1505 1335 TATA Communications formerly
7552 1298 1291 Vietel Corporation
22773 1352 1264 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
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom
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
23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 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 /9:12 /10:26 /11:80 /12:232
/13:464 /14:795 /15:1397 /16:12015 /17:5881 /18:9828
/19:19497 /20:26062 /21:26200 /22:34857 /23:33666 /24:189348
/25:1090 /26:1272 /27:739 /28:205 /29:9 /30:2
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2216 3598 bellsouth.net, inc.
18566 1869 1913 Covad Communications
10620 1452 1557 TVCABLE BOGOTA
23456 1419 2898 32-bit ASN transition
11492 1095 1141 Cable One
7011 1056 1158 Citizens Utilities
1785 1054 1807 PaeTec Communications, Inc.
7029 1038 1291 Windstream Communications Inc
6478 1012 1041 AT&T Worldnet Services
22773 866 1352 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:331 2:44 4:16 5:1 6:3 8:338
12:1964 13:1 14:488 15:15 16:3 17:5
20:10 23:14 24:1678 27:836 31:503 32:64
33:4 34:2 36:4 38:748 40:104 41:2561
42:32 44:3 46:1038 47:3 49:201 50:394
52:13 54:2 55:5 56:2 57:35 58:856
59:481 60:387 61:1124 62:1034 63:1932 64:3963
65:2300 66:3868 67:1872 68:1103 69:3047 70:758
71:386 72:1885 74:2413 75:317 76:341 77:890
78:705 79:459 80:1115 81:837 82:498 83:454
84:691 85:1063 86:522 87:765 88:336 89:1534
90:224 91:3966 92:522 93:1050 94:1347 95:843
96:415 97:261 98:889 99:37 101:79 103:141
106:73 107:22 108:70 109:1017 110:606 111:712
112:305 113:408 114:553 115:684 116:979 117:689
118:822 119:1178 120:314 121:676 122:1604 123:978
124:1302 125:1277 128:246 129:171 130:169 131:576
132:111 133:21 134:213 135:48 136:210 137:138
138:297 139:116 140:480 141:244 142:403 143:419
144:485 145:55 146:454 147:216 148:672 149:248
150:162 151:189 152:342 153:182 154:4 155:396
156:199 157:352 158:138 159:454 160:313 161:202
162:310 163:164 164:499 165:367 166:529 167:432
168:737 169:153 170:845 171:78 172:1 173:1600
174:610 175:380 176:142 177:172 178:999 180:899
181:22 182:492 183:232 184:347 185:1 186:1282
187:734 188:894 189:946 190:4986 192:5898 193:4976
194:3525 195:3027 196:1204 197:43 198:3581 199:3970
200:5553 201:1491 202:8403 203:8433 204:4232 205:2331
206:2668 207:2809 208:3982 209:3411 210:2691 211:1452
212:2089 213:1735 214:769 215:68 216:4946 217:1669
218:543 219:351 220:1230 221:496 222:333 223:217
End of report
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