Routing Table Report 04:00 +10GMT Fri 16 Sep, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 371338
Prefixes after maximum aggregation: 167875
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 184723
Total ASes present in the Internet Routing Table: 38789
Prefixes per ASN: 9.57
Origin-only ASes present in the Internet Routing Table: 32188
Origin ASes announcing only one prefix: 15469
Transit ASes present in the Internet Routing Table: 5191
Transit-only ASes present in the Internet Routing Table: 135
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 36
Max AS path prepend of ASN (22394) 33
Prefixes from unregistered ASNs in the Routing Table: 1263
Unregistered ASNs in the Routing Table: 724
Number of 32-bit ASNs allocated by the RIRs: 1731
Number of 32-bit ASNs visible in the Routing Table: 1410
Prefixes from 32-bit ASNs in the Routing Table: 3248
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 103
Number of addresses announced to Internet: 2477350016
Equivalent to 147 /8s, 169 /16s and 92 /24s
Percentage of available address space announced: 66.8
Percentage of allocated address space announced: 66.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.3
Total number of prefixes smaller than registry allocations: 154821
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93362
Total APNIC prefixes after maximum aggregation: 30709
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 89906
Unique aggregates announced from the APNIC address blocks: 38214
APNIC Region origin ASes present in the Internet Routing Table: 4564
APNIC Prefixes per ASN: 19.70
APNIC Region origin ASes announcing only one prefix: 1256
APNIC Region transit ASes present in the Internet Routing Table: 708
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 86
Number of APNIC addresses announced to Internet: 627123552
Equivalent to 37 /8s, 97 /16s and 37 /24s
Percentage of available APNIC address space announced: 79.5
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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: 143370
Total ARIN prefixes after maximum aggregation: 73703
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 115257
Unique aggregates announced from the ARIN address blocks: 47959
ARIN Region origin ASes present in the Internet Routing Table: 14652
ARIN Prefixes per ASN: 7.87
ARIN Region origin ASes announcing only one prefix: 5646
ARIN Region transit ASes present in the Internet Routing Table: 1551
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 36
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 804852992
Equivalent to 47 /8s, 249 /16s and 21 /24s
Percentage of available ARIN address space announced: 64.0
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: 88065
Total RIPE prefixes after maximum aggregation: 50093
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 81097
Unique aggregates announced from the RIPE address blocks: 53845
RIPE Region origin ASes present in the Internet Routing Table: 15973
RIPE Prefixes per ASN: 5.08
RIPE Region origin ASes announcing only one prefix: 7963
RIPE Region transit ASes present in the Internet Routing Table: 2489
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: 1001
Number of RIPE addresses announced to Internet: 488878336
Equivalent to 29 /8s, 35 /16s and 177 /24s
Percentage of available RIPE address space announced: 78.8
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: 34626
Total LACNIC prefixes after maximum aggregation: 7765
LACNIC Deaggregation factor: 4.46
Prefixes being announced from the LACNIC address blocks: 34016
Unique aggregates announced from the LACNIC address blocks: 17807
LACNIC Region origin ASes present in the Internet Routing Table: 1523
LACNIC Prefixes per ASN: 22.33
LACNIC Region origin ASes announcing only one prefix: 453
LACNIC Region transit ASes present in the Internet Routing Table: 272
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: 307
Number of LACNIC addresses announced to Internet: 88976768
Equivalent to 5 /8s, 77 /16s and 173 /24s
Percentage of available LACNIC address space announced: 58.9
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: 8494
Total AfriNIC prefixes after maximum aggregation: 2018
AfriNIC Deaggregation factor: 4.21
Prefixes being announced from the AfriNIC address blocks: 6577
Unique aggregates announced from the AfriNIC address blocks: 2002
AfriNIC Region origin ASes present in the Internet Routing Table: 483
AfriNIC Prefixes per ASN: 13.62
AfriNIC Region origin ASes announcing only one prefix: 151
AfriNIC Region transit ASes present in the Internet Routing Table: 106
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 27235840
Equivalent to 1 /8s, 159 /16s and 150 /24s
Percentage of available AfriNIC address space announced: 40.6
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 2508 11047 955 Korea Telecom (KIX)
17974 2010 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1589 301 83 TPG Internet Pty Ltd
4755 1548 639 170 TATA Communications formerly
24560 1180 337 193 Bharti Airtel Ltd., Telemedia
9829 1158 989 28 BSNL National Internet Backbo
9583 1077 80 505 Sify Limited
4808 1069 2088 302 CNCGROUP IP network: China169
7552 977 1062 11 Vietel Corporation
17488 956 189 164 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 3563 3817 226 bellsouth.net, inc.
18566 1912 364 237 Covad Communications
1785 1822 680 122 PaeTec Communications, Inc.
4323 1626 1085 393 Time Warner Telecom
7029 1608 1002 214 Windstream Communications Inc
20115 1593 1541 632 Charter Communications
22773 1455 2906 99 Cox Communications, Inc.
30036 1429 264 683 Mediacom Communications Corp
19262 1395 4724 399 Verizon Global Networks
7018 1334 7050 873 AT&T WorldNet Services
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 559 108 179 BILISIM TELEKOM
6830 524 1811 322 UPC Distribution Services
20940 508 163 397 Akamai Technologies European
12479 473 594 8 Uni2 Autonomous System
3292 471 2079 403 TDC Tele Danmark
8866 460 133 26 Bulgarian Telecommunication C
3320 426 8151 373 Deutsche Telekom AG
29049 424 31 55 AzerSat LLC.
8402 409 352 13 Corbina telecom
8551 403 354 44 Bezeq International
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 1675 308 159 TVCABLE BOGOTA
8151 1410 2802 355 UniNet S.A. de C.V.
28573 1348 1010 70 NET Servicos de Comunicao S.A
7303 1153 677 170 Telecom Argentina Stet-France
14420 722 57 91 CORPORACION NACIONAL DE TELEC
6503 584 450 68 AVANTEL, S.A.
22047 579 322 17 VTR PUNTO NET S.A.
27947 567 55 82 Telconet S.A
3816 535 232 98 Empresa Nacional de Telecomun
11172 516 85 91 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
24863 813 147 43 LINKdotNET AS number
8452 698 445 11 TEDATA
15475 513 74 8 Nile Online
36992 301 415 14 Etisalat MISR
3741 267 938 228 The Internet Solution
6713 242 519 14 Itissalat Al-MAGHRIB
33776 239 13 8 Starcomms Nigeria Limited
15706 219 32 6 Sudatel Internet Exchange Aut
12258 198 28 58 Vodacom Internet Company
29571 198 17 13 Ci Telecom Autonomous system
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 3563 3817 226 bellsouth.net, inc.
23456 3248 768 1750 32-bit ASN transition
4766 2508 11047 955 Korea Telecom (KIX)
17974 2010 516 31 PT TELEKOMUNIKASI INDONESIA
18566 1912 364 237 Covad Communications
1785 1822 680 122 PaeTec Communications, Inc.
10620 1675 308 159 TVCABLE BOGOTA
4323 1626 1085 393 Time Warner Telecom
7029 1608 1002 214 Windstream Communications Inc
20115 1593 1541 632 Charter Communications
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
17974 2010 1979 PT TELEKOMUNIKASI INDONESIA
1785 1822 1700 PaeTec Communications, Inc.
18566 1912 1675 Covad Communications
4766 2508 1553 Korea Telecom (KIX)
10620 1675 1516 TVCABLE BOGOTA
7545 1589 1506 TPG Internet Pty Ltd
23456 3248 1498 32-bit ASN transition
7029 1608 1394 Windstream Communications Inc
4755 1548 1378 TATA Communications formerly
22773 1455 1356 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<<
46.18.104.0/21 23456 32-bit ASN transition
50.115.80.0/20 1828 Unitas Global LLC
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 /9:12 /10:27 /11:81 /12:234
/13:464 /14:799 /15:1411 /16:11960 /17:5963 /18:10002
/19:19722 /20:26849 /21:26949 /22:36151 /23:34696 /24:192730
/25:1091 /26:1281 /27:730 /28:158 /29:4 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2200 3563 bellsouth.net, inc.
18566 1868 1912 Covad Communications
10620 1570 1675 TVCABLE BOGOTA
23456 1569 3248 32-bit ASN transition
30036 1387 1429 Mediacom Communications Corp
7029 1307 1608 Windstream Communications Inc
11492 1105 1143 Cable One
7011 1056 1181 Citizens Utilities
1785 1052 1822 PaeTec Communications, Inc.
22773 945 1455 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:371 2:48 4:15 5:1 6:3 8:351
12:1952 13:1 14:538 15:13 16:3 17:5
20:10 23:32 24:1678 27:936 31:531 32:64
33:4 34:2 36:4 38:739 40:108 41:2559
42:46 44:3 46:975 47:3 49:246 50:420
52:13 54:2 55:6 56:2 57:35 58:871
59:494 60:376 61:1175 62:1088 63:1942 64:4046
65:2302 66:3930 67:1942 68:1098 69:3174 70:782
71:377 72:1857 74:2436 75:327 76:339 77:870
78:665 79:469 80:1122 81:835 82:501 83:499
84:687 85:1090 86:410 87:861 88:347 89:1536
90:234 91:4078 92:526 93:1148 94:1332 95:777
96:439 97:272 98:931 99:37 101:207 103:295
106:71 107:44 108:76 109:1018 110:667 111:752
112:312 113:439 114:565 115:685 116:922 117:676
118:890 119:1196 120:339 121:686 122:1605 123:1015
124:1354 125:1354 128:248 129:179 130:166 131:584
132:120 133:21 134:215 135:53 136:212 137:138
138:294 139:100 140:493 141:289 142:389 143:408
144:486 145:61 146:467 147:214 148:638 149:252
150:153 151:190 152:451 153:179 154:6 155:390
156:202 157:325 158:144 159:461 160:324 161:207
162:335 163:176 164:513 165:372 166:536 167:433
168:746 169:146 170:857 171:83 172:4 173:1637
174:625 175:392 176:177 177:248 178:1001 180:1066
181:26 182:613 183:237 184:365 185:1 186:1438
187:684 188:941 189:870 190:5161 192:5909 193:5002
194:3519 195:3057 196:1250 197:148 198:3590 199:4105
200:5512 201:1637 202:8522 203:8506 204:4253 205:2340
206:2670 207:2830 208:4030 209:3467 210:2690 211:1464
212:2085 213:1769 214:782 215:75 216:4856 217:1609
218:551 219:333 220:1196 221:512 222:344 223:266
End of report
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