Routing Table Report 04:00 +10GMT Wed 21 Sep, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 372774
Prefixes after maximum aggregation: 167960
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 184848
Total ASes present in the Internet Routing Table: 38824
Prefixes per ASN: 9.60
Origin-only ASes present in the Internet Routing Table: 32193
Origin ASes announcing only one prefix: 15469
Transit ASes present in the Internet Routing Table: 5214
Transit-only ASes present in the Internet Routing Table: 136
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 33
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 1339
Unregistered ASNs in the Routing Table: 754
Number of 32-bit ASNs allocated by the RIRs: 1752
Number of 32-bit ASNs visible in the Routing Table: 1417
Prefixes from 32-bit ASNs in the Routing Table: 3258
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 103
Number of addresses announced to Internet: 2479022080
Equivalent to 147 /8s, 194 /16s and 224 /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: 91.3
Total number of prefixes smaller than registry allocations: 155204
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93975
Total APNIC prefixes after maximum aggregation: 30733
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 90514
Unique aggregates announced from the APNIC address blocks: 38186
APNIC Region origin ASes present in the Internet Routing Table: 4570
APNIC Prefixes per ASN: 19.81
APNIC Region origin ASes announcing only one prefix: 1258
APNIC Region transit ASes present in the Internet Routing Table: 710
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 88
Number of APNIC addresses announced to Internet: 627940448
Equivalent to 37 /8s, 109 /16s and 156 /24s
Percentage of available APNIC address space announced: 79.6
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: 143472
Total ARIN prefixes after maximum aggregation: 73662
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 115607
Unique aggregates announced from the ARIN address blocks: 47985
ARIN Region origin ASes present in the Internet Routing Table: 14664
ARIN Prefixes per ASN: 7.88
ARIN Region origin ASes announcing only one prefix: 5648
ARIN Region transit ASes present in the Internet Routing Table: 1553
Average ARIN Region AS path length visible: 4.1
Max ARIN Region AS path length visible: 25
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 804873216
Equivalent to 47 /8s, 249 /16s and 100 /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: 88576
Total RIPE prefixes after maximum aggregation: 50192
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 81410
Unique aggregates announced from the RIPE address blocks: 53934
RIPE Region origin ASes present in the Internet Routing Table: 15977
RIPE Prefixes per ASN: 5.10
RIPE Region origin ASes announcing only one prefix: 7959
RIPE Region transit ASes present in the Internet Routing Table: 2508
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: 1006
Number of RIPE addresses announced to Internet: 489486976
Equivalent to 29 /8s, 44 /16s and 250 /24s
Percentage of available RIPE address space announced: 78.9
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: 34863
Total LACNIC prefixes after maximum aggregation: 7766
LACNIC Deaggregation factor: 4.49
Prefixes being announced from the LACNIC address blocks: 34151
Unique aggregates announced from the LACNIC address blocks: 17865
LACNIC Region origin ASes present in the Internet Routing Table: 1525
LACNIC Prefixes per ASN: 22.39
LACNIC Region origin ASes announcing only one prefix: 447
LACNIC Region transit ASes present in the Internet Routing Table: 274
Average LACNIC Region AS path length visible: 4.5
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: 89119104
Equivalent to 5 /8s, 79 /16s and 217 /24s
Percentage of available LACNIC address space announced: 59.0
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: 8456
Total AfriNIC prefixes after maximum aggregation: 1995
AfriNIC Deaggregation factor: 4.24
Prefixes being announced from the AfriNIC address blocks: 6529
Unique aggregates announced from the AfriNIC address blocks: 1990
AfriNIC Region origin ASes present in the Internet Routing Table: 487
AfriNIC Prefixes per ASN: 13.41
AfriNIC Region origin ASes announcing only one prefix: 157
AfriNIC Region transit ASes present in the Internet Routing Table: 104
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: 27351296
Equivalent to 1 /8s, 161 /16s and 89 /24s
Percentage of available AfriNIC address space announced: 40.8
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 2509 11048 956 Korea Telecom (KIX)
17974 1988 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1597 303 85 TPG Internet Pty Ltd
4755 1554 639 169 TATA Communications formerly
7552 1416 1064 7 Vietel Corporation
24560 1182 337 194 Bharti Airtel Ltd., Telemedia
9829 1158 989 28 BSNL National Internet Backbo
9583 1084 80 501 Sify Limited
4808 1070 2088 302 CNCGROUP IP network: China169
18101 949 118 139 Reliance Infocom Ltd Internet
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 1824 680 123 PaeTec Communications, Inc.
7029 1629 1008 195 Windstream Communications Inc
4323 1625 1085 393 Time Warner Telecom
20115 1595 1542 634 Charter Communications
22773 1457 2906 99 Cox Communications, Inc.
30036 1423 266 679 Mediacom Communications Corp
19262 1395 4724 399 Verizon Global Networks
7018 1331 7050 870 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 564 108 181 BILISIM TELEKOM
6830 524 1811 322 UPC Distribution Services
20940 523 171 405 Akamai Technologies European
3320 493 8167 381 Deutsche Telekom AG
3292 475 2081 406 TDC Tele Danmark
8402 472 352 13 Corbina telecom
12479 472 594 8 Uni2 Autonomous System
8866 462 133 26 Bulgarian Telecommunication C
29049 424 31 55 AzerSat LLC.
8551 404 354 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 1679 309 156 TVCABLE BOGOTA
8151 1414 2802 355 UniNet S.A. de C.V.
28573 1336 1011 80 NET Servicos de Comunicao S.A
7303 1156 678 170 Telecom Argentina Stet-France
14420 734 58 88 CORPORACION NACIONAL DE TELEC
6503 581 450 68 AVANTEL, S.A.
22047 579 322 17 VTR PUNTO NET S.A.
27947 568 55 81 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 450 74 8 Nile Online
36992 292 415 14 Etisalat MISR
3741 274 938 229 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 191 17 11 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 3258 770 1763 32-bit ASN transition
4766 2509 11048 956 Korea Telecom (KIX)
17974 1988 516 31 PT TELEKOMUNIKASI INDONESIA
18566 1912 364 237 Covad Communications
1785 1824 680 123 PaeTec Communications, Inc.
10620 1679 309 156 TVCABLE BOGOTA
7029 1629 1008 195 Windstream Communications Inc
4323 1625 1085 393 Time Warner Telecom
7545 1597 303 85 TPG Internet Pty Ltd
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 1988 1957 PT TELEKOMUNIKASI INDONESIA
1785 1824 1701 PaeTec Communications, Inc.
18566 1912 1675 Covad Communications
4766 2509 1553 Korea Telecom (KIX)
10620 1679 1523 TVCABLE BOGOTA
7545 1597 1512 TPG Internet Pty Ltd
23456 3258 1495 32-bit ASN transition
7029 1629 1434 Windstream Communications Inc
7552 1416 1409 Vietel Corporation
4755 1554 1385 TATA Communications formerly
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
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 /8:19 /9:12 /10:27 /11:81 /12:235
/13:464 /14:801 /15:1415 /16:11974 /17:5983 /18:10021
/19:19761 /20:27057 /21:27096 /22:36545 /23:34845 /24:193116
/25:1103 /26:1293 /27:747 /28:170 /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 1574 1679 TVCABLE BOGOTA
23456 1558 3258 32-bit ASN transition
30036 1380 1423 Mediacom Communications Corp
7029 1329 1629 Windstream Communications Inc
11492 1114 1152 Cable One
7011 1058 1183 Citizens Utilities
1785 1053 1824 PaeTec Communications, Inc.
22773 947 1457 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:375 2:81 4:15 5:1 6:3 8:351
12:1955 13:1 14:542 15:13 16:3 17:6
20:10 23:35 24:1678 27:941 31:532 32:64
33:4 34:2 36:4 38:742 40:108 41:2567
42:48 44:3 46:982 47:3 49:250 50:421
52:13 54:2 55:6 56:2 57:35 58:876
59:491 60:376 61:1178 62:1087 63:1939 64:4046
65:2299 66:3928 67:1956 68:1100 69:3182 70:782
71:377 72:1859 74:2435 75:327 76:338 77:869
78:673 79:465 80:1126 81:842 82:506 83:498
84:627 85:1087 86:410 87:868 88:351 89:1546
90:265 91:4095 92:532 93:1156 94:1327 95:798
96:437 97:272 98:930 99:37 101:203 103:308
106:95 107:51 108:78 109:1017 110:667 111:782
112:321 113:441 114:564 115:696 116:891 117:700
118:888 119:1187 120:339 121:687 122:1602 123:1005
124:1359 125:1395 128:244 129:179 130:165 131:564
132:120 133:21 134:214 135:53 136:212 137:138
138:288 139:108 140:481 141:278 142:389 143:407
144:482 145:60 146:470 147:214 148:638 149:251
150:153 151:190 152:452 153:177 154:6 155:394
156:202 157:356 158:144 159:462 160:325 161:207
162:338 163:178 164:507 165:374 166:534 167:433
168:747 169:146 170:859 171:84 172:1 173:1644
174:629 175:397 176:180 177:260 178:1001 180:1065
181:28 182:623 183:219 184:375 185:1 186:1448
187:667 188:937 189:869 190:5161 192:5913 193:5008
194:3526 195:3062 196:1255 197:143 198:3579 199:4116
200:5521 201:1637 202:8551 203:8506 204:4250 205:2335
206:2674 207:2827 208:4034 209:3462 210:2695 211:1468
212:2087 213:1771 214:789 215:76 216:4871 217:1612
218:551 219:333 220:1226 221:514 222:342 223:266
End of report
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