Routing Table Report 04:00 +10GMT Tue 27 Sep, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 374140
Prefixes after maximum aggregation: 168404
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 185205
Total ASes present in the Internet Routing Table: 38884
Prefixes per ASN: 9.62
Origin-only ASes present in the Internet Routing Table: 32233
Origin ASes announcing only one prefix: 15498
Transit ASes present in the Internet Routing Table: 5221
Transit-only ASes present in the Internet Routing Table: 138
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 35
Max AS path prepend of ASN (23456) 31
Prefixes from unregistered ASNs in the Routing Table: 1398
Unregistered ASNs in the Routing Table: 778
Number of 32-bit ASNs allocated by the RIRs: 1771
Number of 32-bit ASNs visible in the Routing Table: 1430
Prefixes from 32-bit ASNs in the Routing Table: 3283
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 95
Number of addresses announced to Internet: 2480289536
Equivalent to 147 /8s, 214 /16s and 55 /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: 91.4
Total number of prefixes smaller than registry allocations: 156447
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93971
Total APNIC prefixes after maximum aggregation: 30825
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 90483
Unique aggregates announced from the APNIC address blocks: 38272
APNIC Region origin ASes present in the Internet Routing Table: 4574
APNIC Prefixes per ASN: 19.78
APNIC Region origin ASes announcing only one prefix: 1261
APNIC Region transit ASes present in the Internet Routing Table: 717
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 89
Number of APNIC addresses announced to Internet: 628169824
Equivalent to 37 /8s, 113 /16s and 28 /24s
Percentage of available APNIC address space announced: 79.7
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: 143844
Total ARIN prefixes after maximum aggregation: 73851
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 115957
Unique aggregates announced from the ARIN address blocks: 48025
ARIN Region origin ASes present in the Internet Routing Table: 14689
ARIN Prefixes per ASN: 7.89
ARIN Region origin ASes announcing only one prefix: 5661
ARIN Region transit ASes present in the Internet Routing Table: 1560
Average ARIN Region AS path length visible: 4.0
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: 805055232
Equivalent to 47 /8s, 252 /16s and 43 /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: 89455
Total RIPE prefixes after maximum aggregation: 50339
RIPE Deaggregation factor: 1.78
Prefixes being announced from the RIPE address blocks: 82164
Unique aggregates announced from the RIPE address blocks: 53993
RIPE Region origin ASes present in the Internet Routing Table: 15993
RIPE Prefixes per ASN: 5.14
RIPE Region origin ASes announcing only one prefix: 7973
RIPE Region transit ASes present in the Internet Routing Table: 2501
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: 1015
Number of RIPE addresses announced to Internet: 489819520
Equivalent to 29 /8s, 50 /16s and 13 /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: 34920
Total LACNIC prefixes after maximum aggregation: 7757
LACNIC Deaggregation factor: 4.50
Prefixes being announced from the LACNIC address blocks: 34224
Unique aggregates announced from the LACNIC address blocks: 17894
LACNIC Region origin ASes present in the Internet Routing Table: 1526
LACNIC Prefixes per ASN: 22.43
LACNIC Region origin ASes announcing only one prefix: 448
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: 310
Number of LACNIC addresses announced to Internet: 89307776
Equivalent to 5 /8s, 82 /16s and 186 /24s
Percentage of available LACNIC address space announced: 59.1
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: 8498
Total AfriNIC prefixes after maximum aggregation: 1992
AfriNIC Deaggregation factor: 4.27
Prefixes being announced from the AfriNIC address blocks: 6582
Unique aggregates announced from the AfriNIC address blocks: 1992
AfriNIC Region origin ASes present in the Internet Routing Table: 486
AfriNIC Prefixes per ASN: 13.54
AfriNIC Region origin ASes announcing only one prefix: 155
AfriNIC Region transit ASes present in the Internet Routing Table: 105
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: 27345408
Equivalent to 1 /8s, 161 /16s and 66 /24s
Percentage of available AfriNIC address space announced: 40.7
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 2503 11048 956 Korea Telecom (KIX)
17974 1997 519 33 PT TELEKOMUNIKASI INDONESIA
7545 1605 303 86 TPG Internet Pty Ltd
4755 1541 638 175 TATA Communications formerly
7552 1374 1064 7 Vietel Corporation
24560 1181 337 193 Bharti Airtel Ltd., Telemedia
9829 1159 989 28 BSNL National Internet Backbo
9583 1086 80 502 Sify Limited
4808 1072 2096 303 CNCGROUP IP network: China169
18101 953 118 142 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 3561 3817 227 bellsouth.net, inc.
18566 1915 366 239 Covad Communications
1785 1826 680 123 PaeTec Communications, Inc.
7029 1706 1008 194 Windstream Communications Inc
4323 1624 1082 391 Time Warner Telecom
20115 1597 1543 633 Charter Communications
22773 1458 2907 99 Cox Communications, Inc.
30036 1420 264 677 Mediacom Communications Corp
19262 1396 4728 400 Verizon Global Networks
7018 1335 7050 869 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
8402 1052 352 13 Corbina telecom
34984 572 108 182 BILISIM TELEKOM
20940 536 180 414 Akamai Technologies European
6830 533 1813 325 UPC Distribution Services
3320 493 8167 381 Deutsche Telekom AG
3292 477 2082 407 TDC Tele Danmark
12479 474 594 8 Uni2 Autonomous System
8866 461 133 26 Bulgarian Telecommunication C
29049 424 31 55 AzerSat LLC.
3301 404 1904 353 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 1680 309 155 TVCABLE BOGOTA
8151 1417 2803 352 UniNet S.A. de C.V.
28573 1369 1013 70 NET Servicos de Comunicao S.A
7303 1162 681 173 Telecom Argentina Stet-France
14420 736 58 88 CORPORACION NACIONAL DE TELEC
6503 582 450 69 AVANTEL, S.A.
22047 580 322 17 VTR PUNTO NET S.A.
27947 571 55 80 Telconet S.A
3816 535 232 98 Empresa Nacional de Telecomun
11172 517 85 92 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 812 147 43 LINKdotNET AS number
8452 713 445 11 TEDATA
15475 450 74 8 Nile Online
36992 293 415 14 Etisalat MISR
3741 274 938 229 The Internet Solution
15706 244 32 6 Sudatel Internet Exchange Aut
6713 242 519 14 Itissalat Al-MAGHRIB
33776 239 13 8 Starcomms Nigeria Limited
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 3561 3817 227 bellsouth.net, inc.
23456 3283 775 1777 32-bit ASN transition
4766 2503 11048 956 Korea Telecom (KIX)
17974 1997 519 33 PT TELEKOMUNIKASI INDONESIA
18566 1915 366 239 Covad Communications
1785 1826 680 123 PaeTec Communications, Inc.
7029 1706 1008 194 Windstream Communications Inc
10620 1680 309 155 TVCABLE BOGOTA
4323 1624 1082 391 Time Warner Telecom
7545 1605 303 86 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 1997 1964 PT TELEKOMUNIKASI INDONESIA
1785 1826 1703 PaeTec Communications, Inc.
18566 1915 1676 Covad Communications
4766 2503 1547 Korea Telecom (KIX)
10620 1680 1525 TVCABLE BOGOTA
7545 1605 1519 TPG Internet Pty Ltd
7029 1706 1512 Windstream Communications Inc
23456 3283 1506 32-bit ASN transition
7552 1374 1367 Vietel Corporation
4755 1541 1366 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<<
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 /8:19 /9:12 /10:27 /11:81 /12:235
/13:464 /14:801 /15:1418 /16:11986 /17:5991 /18:10024
/19:19822 /20:27088 /21:27129 /22:36687 /23:34862 /24:194079
/25:1131 /26:1352 /27:752 /28:171 /29:4 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2197 3561 bellsouth.net, inc.
18566 1870 1915 Covad Communications
10620 1575 1680 TVCABLE BOGOTA
23456 1566 3283 32-bit ASN transition
7029 1403 1706 Windstream Communications Inc
30036 1377 1420 Mediacom Communications Corp
11492 1114 1152 Cable One
7011 1058 1183 Citizens Utilities
1785 1053 1826 PaeTec Communications, Inc.
8402 999 1052 Corbina telecom
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:382 2:316 4:15 5:1 6:3 8:352
12:1957 13:1 14:546 15:13 16:3 17:8
20:9 23:35 24:1681 27:944 31:540 32:64
33:4 34:2 36:4 38:742 40:108 41:2596
42:48 44:3 46:988 47:3 49:262 50:425
52:13 54:2 55:4 56:2 57:37 58:878
59:493 60:377 61:1177 62:1088 63:1940 64:4052
65:2305 66:3967 67:1959 68:1117 69:3192 70:815
71:377 72:1856 74:2459 75:349 76:341 77:874
78:809 79:479 80:1119 81:839 82:503 83:519
84:622 85:1084 86:409 87:874 88:351 89:1588
90:267 91:4108 92:532 93:1296 94:1293 95:923
96:438 97:276 98:924 99:37 101:210 103:318
106:85 107:53 108:77 109:1028 110:666 111:789
112:322 113:447 114:567 115:694 116:881 117:706
118:890 119:1207 120:334 121:682 122:1611 123:1008
124:1343 125:1394 128:244 129:179 130:165 131:583
132:124 133:21 134:215 135:54 136:213 137:139
138:288 139:118 140:493 141:288 142:387 143:410
144:486 145:60 146:471 147:215 148:639 149:257
150:152 151:191 152:446 153:177 154:6 155:394
156:205 157:359 158:145 159:463 160:324 161:205
162:340 163:177 164:507 165:372 166:534 167:432
168:747 169:146 170:861 171:83 172:1 173:1645
174:596 175:401 176:215 177:287 178:1027 180:1091
181:30 182:625 183:224 184:367 185:1 186:1467
187:669 188:929 189:854 190:5166 192:5909 193:5013
194:3523 195:3069 196:1249 197:175 198:3598 199:4129
200:5477 201:1635 202:8444 203:8435 204:4253 205:2345
206:2676 207:2825 208:4035 209:3458 210:2703 211:1460
212:2056 213:1770 214:779 215:75 216:4882 217:1608
218:562 219:343 220:1228 221:509 222:353 223:262
End of report
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