Routing Table Report 04:00 +10GMT Thu 20 Oct, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 378640
Prefixes after maximum aggregation: 169670
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 184914
Total ASes present in the Internet Routing Table: 39110
Prefixes per ASN: 9.68
Origin-only ASes present in the Internet Routing Table: 32337
Origin ASes announcing only one prefix: 15506
Transit ASes present in the Internet Routing Table: 5249
Transit-only ASes present in the Internet Routing Table: 135
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 33
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 1462
Unregistered ASNs in the Routing Table: 813
Number of 32-bit ASNs allocated by the RIRs: 1870
Number of 32-bit ASNs visible in the Routing Table: 1524
Prefixes from 32-bit ASNs in the Routing Table: 3486
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 88
Number of addresses announced to Internet: 2484710880
Equivalent to 148 /8s, 25 /16s and 173 /24s
Percentage of available address space announced: 67.0
Percentage of allocated address space announced: 67.0
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.5
Total number of prefixes smaller than registry allocations: 159294
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 94670
Total APNIC prefixes after maximum aggregation: 30927
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 91123
Unique aggregates announced from the APNIC address blocks: 37971
APNIC Region origin ASes present in the Internet Routing Table: 4583
APNIC Prefixes per ASN: 19.88
APNIC Region origin ASes announcing only one prefix: 1263
APNIC Region transit ASes present in the Internet Routing Table: 713
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: 93
Number of APNIC addresses announced to Internet: 628752736
Equivalent to 37 /8s, 122 /16s and 1 /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: 145802
Total ARIN prefixes after maximum aggregation: 74397
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 117717
Unique aggregates announced from the ARIN address blocks: 47848
ARIN Region origin ASes present in the Internet Routing Table: 14739
ARIN Prefixes per ASN: 7.99
ARIN Region origin ASes announcing only one prefix: 5664
ARIN Region transit ASes present in the Internet Routing Table: 1557
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: 804707840
Equivalent to 47 /8s, 246 /16s and 222 /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: 90862
Total RIPE prefixes after maximum aggregation: 50617
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 83552
Unique aggregates announced from the RIPE address blocks: 53859
RIPE Region origin ASes present in the Internet Routing Table: 16055
RIPE Prefixes per ASN: 5.20
RIPE Region origin ASes announcing only one prefix: 7978
RIPE Region transit ASes present in the Internet Routing Table: 2524
Average RIPE Region AS path length visible: 4.7
Max RIPE Region AS path length visible: 33
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1070
Number of RIPE addresses announced to Internet: 490961792
Equivalent to 29 /8s, 67 /16s and 123 /24s
Percentage of available RIPE address space announced: 79.1
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: 35155
Total LACNIC prefixes after maximum aggregation: 7894
LACNIC Deaggregation factor: 4.45
Prefixes being announced from the LACNIC address blocks: 34556
Unique aggregates announced from the LACNIC address blocks: 17943
LACNIC Region origin ASes present in the Internet Routing Table: 1540
LACNIC Prefixes per ASN: 22.44
LACNIC Region origin ASes announcing only one prefix: 447
LACNIC Region transit ASes present in the Internet Routing Table: 280
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 21
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 345
Number of LACNIC addresses announced to Internet: 91191424
Equivalent to 5 /8s, 111 /16s and 120 /24s
Percentage of available LACNIC address space announced: 60.4
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: 8498
Total AfriNIC prefixes after maximum aggregation: 2011
AfriNIC Deaggregation factor: 4.23
Prefixes being announced from the AfriNIC address blocks: 6593
Unique aggregates announced from the AfriNIC address blocks: 1971
AfriNIC Region origin ASes present in the Internet Routing Table: 489
AfriNIC Prefixes per ASN: 13.48
AfriNIC Region origin ASes announcing only one prefix: 154
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: 27832320
Equivalent to 1 /8s, 168 /16s and 176 /24s
Percentage of available AfriNIC address space announced: 41.5
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 2502 11095 963 Korea Telecom (KIX)
17974 1905 519 33 PT TELEKOMUNIKASI INDONESIA
7545 1610 303 86 TPG Internet Pty Ltd
4755 1539 639 173 TATA Communications formerly
7552 1389 1064 8 Vietel Corporation
9829 1166 989 28 BSNL National Internet Backbo
9583 1086 80 502 Sify Limited
4808 1079 2100 308 CNCGROUP IP network: China169
24560 973 341 224 Bharti Airtel Ltd., Telemedia
18101 952 166 148 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 3547 3815 221 bellsouth.net, inc.
7029 2253 1016 197 Windstream Communications Inc
18566 2098 383 177 Covad Communications
1785 1838 680 122 PaeTec Communications, Inc.
4323 1629 1083 392 Time Warner Telecom
20115 1591 1544 626 Charter Communications
22773 1462 2907 100 Cox Communications, Inc.
19262 1395 4728 400 Verizon Global Networks
30036 1394 251 672 Mediacom Communications Corp
7018 1341 7078 850 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 1512 352 13 Corbina telecom
6830 653 1927 415 UPC Distribution Services
34984 584 108 180 BILISIM TELEKOM
20940 546 182 420 Akamai Technologies European
3320 503 8169 383 Deutsche Telekom AG
3292 482 2080 409 TDC Tele Danmark
12479 482 593 7 Uni2 Autonomous System
8866 459 133 26 Bulgarian Telecommunication C
29049 423 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 1686 311 155 TVCABLE BOGOTA
28573 1436 1032 69 NET Servicos de Comunicao S.A
8151 1427 2879 351 UniNet S.A. de C.V.
7303 1165 684 176 Telecom Argentina Stet-France
22047 580 322 17 VTR PUNTO NET S.A.
27947 579 72 83 Telconet S.A
6503 572 450 69 AVANTEL, S.A.
7738 552 1050 31 Telecomunicacoes da Bahia S.A
3816 537 233 96 Empresa Nacional de Telecomun
11172 522 85 95 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 801 146 36 LINKdotNET AS number
8452 647 446 12 TEDATA
15475 445 74 8 Nile Online
36992 298 415 19 Etisalat MISR
3741 279 938 230 The Internet Solution
6713 242 519 14 Itissalat Al-MAGHRIB
15706 240 32 6 Sudatel Internet Exchange Aut
29571 217 17 13 Ci Telecom Autonomous system
33776 207 13 14 Starcomms Nigeria Limited
12258 196 28 57 Vodacom Internet Company
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 3547 3815 221 bellsouth.net, inc.
4766 2502 11095 963 Korea Telecom (KIX)
7029 2253 1016 197 Windstream Communications Inc
18566 2098 383 177 Covad Communications
17974 1905 519 33 PT TELEKOMUNIKASI INDONESIA
1785 1838 680 122 PaeTec Communications, Inc.
10620 1686 311 155 TVCABLE BOGOTA
4323 1629 1083 392 Time Warner Telecom
7545 1610 303 86 TPG Internet Pty Ltd
20115 1591 1544 626 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
7029 2253 2056 Windstream Communications Inc
18566 2098 1921 Covad Communications
17974 1905 1872 PT TELEKOMUNIKASI INDONESIA
1785 1838 1716 PaeTec Communications, Inc.
4766 2502 1539 Korea Telecom (KIX)
10620 1686 1531 TVCABLE BOGOTA
7545 1610 1524 TPG Internet Pty Ltd
8402 1512 1499 Corbina telecom
7552 1389 1381 Vietel Corporation
28573 1436 1367 NET Servicos de Comunicao S.A
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
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
17300 UNALLOCATED 12.45.103.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic
32873 UNALLOCATED 12.46.100.0/23 10912 InterNAP Network Ser
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
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
64.21.192.0/20 11610 Internet Nebraska Corporation
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 /14:807 /15:1425 /16:12007 /17:6040 /18:10049
/19:19956 /20:27402 /21:27372 /22:37028 /23:35116 /24:197176
/25:1155 /26:1342 /27:749 /28:169 /29:4 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2186 3547 bellsouth.net, inc.
18566 2047 2098 Covad Communications
7029 1927 2253 Windstream Communications Inc
10620 1581 1686 TVCABLE BOGOTA
8402 1488 1512 Corbina telecom
30036 1356 1394 Mediacom Communications Corp
11492 1118 1156 Cable One
1785 1057 1838 PaeTec Communications, Inc.
7011 1048 1166 Citizens Utilities
22773 950 1462 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:406 2:486 4:15 5:1 6:3 8:362
12:1956 13:1 14:541 15:11 16:3 17:7
20:9 23:58 24:1677 27:966 31:603 32:65
33:4 34:2 36:4 38:753 40:110 41:2654
42:53 44:3 46:1001 47:3 49:296 50:437
52:13 55:6 56:2 57:37 58:884 59:491
60:363 61:1183 62:1094 63:1936 64:4085 65:2305
66:4288 67:1957 68:1153 69:3239 70:891 71:376
72:1861 74:2584 75:387 76:346 77:884 78:866
79:476 80:1143 81:824 82:502 83:526 84:624
85:1124 86:404 87:894 88:354 89:1584 90:269
91:4209 92:527 93:1540 94:1301 95:1086 96:437
97:283 98:909 99:37 101:216 103:370 106:70
107:72 108:70 109:1062 110:673 111:788 112:332
113:486 114:611 115:704 116:878 117:713 118:902
119:1242 120:339 121:692 122:1571 123:1018 124:1362
125:1384 128:249 129:182 130:165 131:593 132:144
133:21 134:219 135:54 136:213 137:140 138:286
139:119 140:488 141:298 142:383 143:441 144:494
145:63 146:470 147:224 148:641 149:267 150:166
151:192 152:448 153:178 154:7 155:385 156:206
157:361 158:152 159:479 160:324 161:214 162:340
163:174 164:509 165:367 166:536 167:437 168:743
169:145 170:872 171:86 172:4 173:1692 174:680
175:426 176:283 177:333 178:1056 180:1091 181:36
182:645 183:218 184:379 185:1 186:1281 187:709
188:934 189:873 190:5118 192:5910 193:5030 194:3559
195:3105 196:1249 197:163 198:3619 199:4171 200:5516
201:1661 202:8557 203:8509 204:4293 205:2365 206:2678
207:2827 208:4062 209:3595 210:2693 211:1456 212:2058
213:1768 214:787 215:90 216:4997 217:1608 218:565
219:340 220:1242 221:515 222:347 223:278
End of report
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