Routing Table Report 04:00 +10GMT Mon 29 Aug, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 368421
Prefixes after maximum aggregation: 166623
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 182690
Total ASes present in the Internet Routing Table: 38526
Prefixes per ASN: 9.56
Origin-only ASes present in the Internet Routing Table: 31948
Origin ASes announcing only one prefix: 15328
Transit ASes present in the Internet Routing Table: 5224
Transit-only ASes present in the Internet Routing Table: 144
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 34
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 1161
Unregistered ASNs in the Routing Table: 661
Number of 32-bit ASNs allocated by the RIRs: 1684
Number of 32-bit ASNs visible in the Routing Table: 1354
Prefixes from 32-bit ASNs in the Routing Table: 3129
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 107
Number of addresses announced to Internet: 2470821792
Equivalent to 147 /8s, 69 /16s and 191 /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: 153599
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92665
Total APNIC prefixes after maximum aggregation: 30484
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 89167
Unique aggregates announced from the APNIC address blocks: 37711
APNIC Region origin ASes present in the Internet Routing Table: 4545
APNIC Prefixes per ASN: 19.62
APNIC Region origin ASes announcing only one prefix: 1252
APNIC Region transit ASes present in the Internet Routing Table: 717
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 76
Number of APNIC addresses announced to Internet: 625550880
Equivalent to 37 /8s, 73 /16s and 38 /24s
Percentage of available APNIC address space announced: 79.3
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: 142336
Total ARIN prefixes after maximum aggregation: 73153
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 114364
Unique aggregates announced from the ARIN address blocks: 47111
ARIN Region origin ASes present in the Internet Routing Table: 14539
ARIN Prefixes per ASN: 7.87
ARIN Region origin ASes announcing only one prefix: 5567
ARIN Region transit ASes present in the Internet Routing Table: 1540
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 34
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 803895840
Equivalent to 47 /8s, 234 /16s and 122 /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: 87678
Total RIPE prefixes after maximum aggregation: 49818
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 80861
Unique aggregates announced from the RIPE address blocks: 53608
RIPE Region origin ASes present in the Internet Routing Table: 15914
RIPE Prefixes per ASN: 5.08
RIPE Region origin ASes announcing only one prefix: 7916
RIPE Region transit ASes present in the Internet Routing Table: 2510
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: 967
Number of RIPE addresses announced to Internet: 488260352
Equivalent to 29 /8s, 26 /16s and 67 /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: 34164
Total LACNIC prefixes after maximum aggregation: 7698
LACNIC Deaggregation factor: 4.44
Prefixes being announced from the LACNIC address blocks: 33434
Unique aggregates announced from the LACNIC address blocks: 17486
LACNIC Region origin ASes present in the Internet Routing Table: 1504
LACNIC Prefixes per ASN: 22.23
LACNIC Region origin ASes announcing only one prefix: 444
LACNIC Region transit ASes present in the Internet Routing Table: 278
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: 295
Number of LACNIC addresses announced to Internet: 87855552
Equivalent to 5 /8s, 60 /16s and 145 /24s
Percentage of available LACNIC address space announced: 58.2
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: 8276
Total AfriNIC prefixes after maximum aggregation: 2024
AfriNIC Deaggregation factor: 4.09
Prefixes being announced from the AfriNIC address blocks: 6379
Unique aggregates announced from the AfriNIC address blocks: 2018
AfriNIC Region origin ASes present in the Internet Routing Table: 478
AfriNIC Prefixes per ASN: 13.35
AfriNIC Region origin ASes announcing only one prefix: 149
AfriNIC Region transit ASes present in the Internet Routing Table: 103
Average AfriNIC Region AS path length visible: 4.8
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: 26757376
Equivalent to 1 /8s, 152 /16s and 73 /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 2506 11047 952 Korea Telecom (KIX)
17974 1981 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1574 301 83 TPG Internet Pty Ltd
4755 1537 635 168 TATA Communications formerly
7552 1414 1064 7 Vietel Corporation
24560 1197 336 189 Bharti Airtel Ltd., Telemedia
9829 1153 989 28 BSNL National Internet Backbo
9583 1075 79 496 Sify Limited
4808 1059 2094 305 CNCGROUP IP network: China169
17488 1021 193 148 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 3581 3817 227 bellsouth.net, inc.
18566 1912 364 240 Covad Communications
1785 1821 680 123 PaeTec Communications, Inc.
4323 1613 1085 395 Time Warner Telecom
20115 1588 1538 632 Charter Communications
7029 1581 995 230 Windstream Communications Inc
22773 1441 2903 96 Cox Communications, Inc.
19262 1395 4761 399 Verizon Global Networks
7018 1331 7051 872 AT&T WorldNet Services
2386 1208 514 872 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 541 107 182 BILISIM TELEKOM
6830 522 1810 321 UPC Distribution Services
20940 481 143 379 Akamai Technologies European
3292 469 2080 404 TDC Tele Danmark
8866 458 133 26 Bulgarian Telecommunication C
12479 456 593 7 Uni2 Autonomous System
3320 425 8151 371 Deutsche Telekom AG
29049 413 30 58 AzerSat LLC.
8551 404 354 44 Bezeq International
3301 399 1855 348 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 1625 297 155 TVCABLE BOGOTA
8151 1398 2777 348 UniNet S.A. de C.V.
28573 1262 996 67 NET Servicos de Comunicao S.A
7303 1058 578 172 Telecom Argentina Stet-France
14420 711 56 87 CORPORACION NACIONAL DE TELEC
6503 591 450 68 AVANTEL, S.A.
22047 578 322 17 VTR PUNTO NET S.A.
27947 559 55 82 Telconet S.A
3816 531 232 96 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 810 147 43 LINKdotNET AS number
8452 640 445 11 TEDATA
15475 513 74 8 Nile Online
36992 301 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 242 519 14 Itissalat Al-MAGHRIB
15706 219 32 6 Sudatel Internet Exchange Aut
33776 198 12 22 Starcomms Nigeria Limited
12258 194 28 61 Vodacom Internet Company
24835 176 70 11 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 3581 3817 227 bellsouth.net, inc.
23456 3129 742 1680 32-bit ASN transition
4766 2506 11047 952 Korea Telecom (KIX)
17974 1981 516 31 PT TELEKOMUNIKASI INDONESIA
18566 1912 364 240 Covad Communications
1785 1821 680 123 PaeTec Communications, Inc.
10620 1625 297 155 TVCABLE BOGOTA
4323 1613 1085 395 Time Warner Telecom
20115 1588 1538 632 Charter Communications
7029 1581 995 230 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 1981 1950 PT TELEKOMUNIKASI INDONESIA
1785 1821 1698 PaeTec Communications, Inc.
18566 1912 1672 Covad Communications
4766 2506 1554 Korea Telecom (KIX)
7545 1574 1491 TPG Internet Pty Ltd
10620 1625 1470 TVCABLE BOGOTA
23456 3129 1449 32-bit ASN transition
7552 1414 1407 Vietel Corporation
4755 1537 1369 TATA Communications formerly
7029 1581 1351 Windstream 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 /14:795 /15:1413 /16:11934 /17:5942 /18:9952
/19:19576 /20:26649 /21:26677 /22:35780 /23:34379 /24:191147
/25:1114 /26:1322 /27:745 /28:154 /29:4 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2213 3581 bellsouth.net, inc.
18566 1868 1912 Covad Communications
23456 1544 3129 32-bit ASN transition
10620 1520 1625 TVCABLE BOGOTA
7029 1280 1581 Windstream Communications Inc
11492 1105 1151 Cable One
7011 1060 1185 Citizens Utilities
1785 1052 1821 PaeTec Communications, Inc.
22773 936 1441 Cox Communications, Inc.
30036 930 958 Mediacom Communications Corp
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:363 2:43 4:15 5:1 6:3 8:342
12:1945 13:1 14:517 15:13 16:3 17:5
20:10 23:31 24:1671 27:906 31:512 32:64
33:4 34:2 36:4 38:730 40:107 41:2412
42:50 44:3 46:1077 47:3 49:221 50:420
52:13 54:2 55:5 56:2 57:35 58:861
59:500 60:375 61:1170 62:1091 63:1918 64:3999
65:2302 66:3924 67:1918 68:1112 69:3118 70:778
71:374 72:1843 74:2413 75:330 76:336 77:864
78:707 79:471 80:1120 81:828 82:495 83:473
84:684 85:1072 86:495 87:848 88:337 89:1536
90:224 91:4052 92:525 93:1130 94:1343 95:872
96:418 97:266 98:924 99:37 101:75 103:239
106:79 107:36 108:75 109:1018 110:635 111:735
112:314 113:415 114:555 115:702 116:995 117:678
118:882 119:1196 120:331 121:682 122:1616 123:988
124:1318 125:1329 128:225 129:176 130:166 131:577
132:118 133:21 134:213 135:53 136:213 137:136
138:290 139:116 140:489 141:285 142:387 143:423
144:483 145:61 146:460 147:219 148:636 149:251
150:155 151:189 152:441 153:179 154:5 155:398
156:201 157:354 158:140 159:458 160:318 161:207
162:334 163:166 164:511 165:365 166:537 167:432
168:746 169:150 170:847 171:83 172:1 173:1635
174:628 175:398 176:156 177:245 178:1011 180:1005
181:25 182:601 183:237 184:343 185:1 186:1390
187:690 188:936 189:859 190:5136 192:5895 193:4986
194:3507 195:3042 196:1235 197:141 198:3565 199:4064
200:5501 201:1514 202:8316 203:8425 204:4240 205:2308
206:2654 207:2820 208:4007 209:3420 210:2685 211:1460
212:2083 213:1760 214:770 215:76 216:4824 217:1592
218:550 219:352 220:1220 221:514 222:351 223:248
End of report
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