Routing Table Report 04:00 +10GMT Wed 07 Sep, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 370514
Prefixes after maximum aggregation: 167364
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 183483
Total ASes present in the Internet Routing Table: 38690
Prefixes per ASN: 9.58
Origin-only ASes present in the Internet Routing Table: 32099
Origin ASes announcing only one prefix: 15421
Transit ASes present in the Internet Routing Table: 5209
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: 36
Max AS path prepend of ASN (22394) 33
Prefixes from unregistered ASNs in the Routing Table: 1186
Unregistered ASNs in the Routing Table: 682
Number of 32-bit ASNs allocated by the RIRs: 1704
Number of 32-bit ASNs visible in the Routing Table: 1382
Prefixes from 32-bit ASNs in the Routing Table: 3198
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 103
Number of addresses announced to Internet: 2473149248
Equivalent to 147 /8s, 105 /16s and 67 /24s
Percentage of available address space announced: 66.7
Percentage of allocated address space announced: 66.7
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.2
Total number of prefixes smaller than registry allocations: 154514
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93280
Total APNIC prefixes after maximum aggregation: 30643
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 89812
Unique aggregates announced from the APNIC address blocks: 38009
APNIC Region origin ASes present in the Internet Routing Table: 4551
APNIC Prefixes per ASN: 19.73
APNIC Region origin ASes announcing only one prefix: 1249
APNIC Region transit ASes present in the Internet Routing Table: 706
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 79
Number of APNIC addresses announced to Internet: 625921824
Equivalent to 37 /8s, 78 /16s and 207 /24s
Percentage of available APNIC address space announced: 79.4
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: 143000
Total ARIN prefixes after maximum aggregation: 73503
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 114886
Unique aggregates announced from the ARIN address blocks: 47237
ARIN Region origin ASes present in the Internet Routing Table: 14639
ARIN Prefixes per ASN: 7.85
ARIN Region origin ASes announcing only one prefix: 5638
ARIN Region transit ASes present in the Internet Routing Table: 1556
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: 804358400
Equivalent to 47 /8s, 241 /16s and 137 /24s
Percentage of available ARIN address space announced: 63.9
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: 88077
Total RIPE prefixes after maximum aggregation: 49941
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 81187
Unique aggregates announced from the RIPE address blocks: 53727
RIPE Region origin ASes present in the Internet Routing Table: 15931
RIPE Prefixes per ASN: 5.10
RIPE Region origin ASes announcing only one prefix: 7932
RIPE Region transit ASes present in the Internet Routing Table: 2497
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: 984
Number of RIPE addresses announced to Internet: 488421632
Equivalent to 29 /8s, 28 /16s and 185 /24s
Percentage of available RIPE address space announced: 78.7
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: 34458
Total LACNIC prefixes after maximum aggregation: 7741
LACNIC Deaggregation factor: 4.45
Prefixes being announced from the LACNIC address blocks: 33737
Unique aggregates announced from the LACNIC address blocks: 17616
LACNIC Region origin ASes present in the Internet Routing Table: 1518
LACNIC Prefixes per ASN: 22.22
LACNIC Region origin ASes announcing only one prefix: 449
LACNIC Region transit ASes present in the Internet Routing Table: 275
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: 303
Number of LACNIC addresses announced to Internet: 88192128
Equivalent to 5 /8s, 65 /16s and 180 /24s
Percentage of available LACNIC address space announced: 58.4
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: 8337
Total AfriNIC prefixes after maximum aggregation: 2026
AfriNIC Deaggregation factor: 4.12
Prefixes being announced from the AfriNIC address blocks: 6433
Unique aggregates announced from the AfriNIC address blocks: 2013
AfriNIC Region origin ASes present in the Internet Routing Table: 483
AfriNIC Prefixes per ASN: 13.32
AfriNIC Region origin ASes announcing only one prefix: 153
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: 26808832
Equivalent to 1 /8s, 153 /16s and 18 /24s
Percentage of available AfriNIC address space announced: 39.9
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 2507 11047 954 Korea Telecom (KIX)
17974 1975 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1577 301 82 TPG Internet Pty Ltd
4755 1546 635 170 TATA Communications formerly
24560 1177 336 193 Bharti Airtel Ltd., Telemedia
9829 1152 989 28 BSNL National Internet Backbo
4808 1073 2092 305 CNCGROUP IP network: China169
9583 1073 79 503 Sify Limited
17488 1009 191 162 Hathway IP Over Cable Interne
7552 985 1062 11 Vietel Corporation
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 1823 680 122 PaeTec Communications, Inc.
4323 1625 1085 396 Time Warner Telecom
20115 1591 1541 632 Charter Communications
7029 1586 995 231 Windstream Communications Inc
22773 1451 2906 99 Cox Communications, Inc.
19262 1394 4724 399 Verizon Global Networks
7018 1340 7051 877 AT&T WorldNet Services
2386 1224 515 880 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 543 107 178 BILISIM TELEKOM
6830 523 1811 321 UPC Distribution Services
20940 493 151 385 Akamai Technologies European
3292 470 2079 404 TDC Tele Danmark
12479 467 593 7 Uni2 Autonomous System
8866 459 133 26 Bulgarian Telecommunication C
3320 430 8152 374 Deutsche Telekom AG
29049 423 31 55 AzerSat LLC.
8402 404 352 13 Corbina telecom
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 1636 299 156 TVCABLE BOGOTA
8151 1406 2781 354 UniNet S.A. de C.V.
28573 1299 1003 71 NET Servicos de Comunicao S.A
7303 1059 578 171 Telecom Argentina Stet-France
14420 715 57 88 CORPORACION NACIONAL DE TELEC
6503 589 450 68 AVANTEL, S.A.
22047 579 322 17 VTR PUNTO NET S.A.
27947 563 55 82 Telconet S.A
3816 533 232 97 Empresa Nacional de Telecomun
7738 515 986 31 Telecomunicacoes da Bahia 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 811 147 43 LINKdotNET AS number
8452 647 445 11 TEDATA
15475 512 74 8 Nile Online
36992 300 415 14 Etisalat MISR
3741 266 937 227 The Internet Solution
6713 242 519 14 Itissalat Al-MAGHRIB
15706 219 32 6 Sudatel Internet Exchange Aut
33776 207 13 14 Starcomms Nigeria Limited
12258 193 28 62 Vodacom Internet Company
24835 181 70 12 RAYA Telecom - Egypt
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 3198 757 1712 32-bit ASN transition
4766 2507 11047 954 Korea Telecom (KIX)
17974 1975 516 31 PT TELEKOMUNIKASI INDONESIA
18566 1912 364 237 Covad Communications
1785 1823 680 122 PaeTec Communications, Inc.
10620 1636 299 156 TVCABLE BOGOTA
4323 1625 1085 396 Time Warner Telecom
20115 1591 1541 632 Charter Communications
7029 1586 995 231 Windstream Communications Inc
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 1975 1944 PT TELEKOMUNIKASI INDONESIA
1785 1823 1701 PaeTec Communications, Inc.
18566 1912 1675 Covad Communications
4766 2507 1553 Korea Telecom (KIX)
7545 1577 1495 TPG Internet Pty Ltd
23456 3198 1486 32-bit ASN transition
10620 1636 1480 TVCABLE BOGOTA
4755 1546 1376 TATA Communications formerly
7029 1586 1355 Windstream Communications Inc
22773 1451 1352 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
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 /12:233
/13:461 /14:798 /15:1410 /16:11957 /17:5948 /18:9991
/19:19672 /20:26675 /21:26868 /22:35895 /23:34597 /24:192548
/25:1114 /26:1298 /27:736 /28:165 /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
23456 1556 3198 32-bit ASN transition
10620 1531 1636 TVCABLE BOGOTA
7029 1286 1586 Windstream Communications Inc
11492 1108 1154 Cable One
7011 1058 1183 Citizens Utilities
1785 1053 1823 PaeTec Communications, Inc.
22773 941 1451 Cox Communications, Inc.
30036 920 948 Mediacom Communications Corp
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:364 2:51 4:15 5:1 6:3 8:348
12:1950 13:1 14:531 15:13 16:3 17:5
20:10 23:31 24:1679 27:930 31:524 32:64
33:3 34:2 36:4 38:736 40:107 41:2436
42:40 44:3 46:1087 47:3 49:233 50:408
52:13 54:2 55:3 56:2 57:35 58:867
59:494 60:376 61:1172 62:1081 63:1940 64:4023
65:2304 66:3933 67:1937 68:1111 69:3130 70:781
71:375 72:1854 74:2428 75:328 76:339 77:868
78:703 79:455 80:1122 81:841 82:495 83:493
84:684 85:1090 86:497 87:860 88:341 89:1541
90:231 91:4064 92:522 93:1140 94:1358 95:863
96:422 97:271 98:924 99:37 101:203 103:267
106:79 107:42 108:76 109:1021 110:667 111:747
112:312 113:433 114:563 115:704 116:947 117:682
118:882 119:1197 120:333 121:687 122:1606 123:995
124:1348 125:1355 128:248 129:178 130:166 131:582
132:119 133:21 134:215 135:53 136:212 137:136
138:295 139:116 140:492 141:284 142:389 143:424
144:488 145:61 146:466 147:223 148:632 149:250
150:153 151:190 152:443 153:179 154:6 155:396
156:201 157:354 158:141 159:458 160:319 161:207
162:337 163:175 164:513 165:367 166:537 167:433
168:748 169:146 170:851 171:84 172:1 173:1657
174:619 175:386 176:156 177:248 178:1020 180:1016
181:27 182:607 183:229 184:348 185:1 186:1412
187:684 188:937 189:875 190:5137 192:5929 193:4985
194:3523 195:3045 196:1238 197:147 198:3585 199:4090
200:5510 201:1637 202:8539 203:8496 204:4246 205:2332
206:2674 207:2832 208:4018 209:3436 210:2691 211:1466
212:2089 213:1760 214:778 215:76 216:4861 217:1618
218:549 219:345 220:1196 221:515 222:352 223:261
End of report
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