Routing Table Report 04:00 +10GMT Mon 24 Oct, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 380807
Prefixes after maximum aggregation: 169875
Deaggregation factor: 2.24
Unique aggregates announced to Internet: 185675
Total ASes present in the Internet Routing Table: 39142
Prefixes per ASN: 9.73
Origin-only ASes present in the Internet Routing Table: 32347
Origin ASes announcing only one prefix: 15513
Transit ASes present in the Internet Routing Table: 5256
Transit-only ASes present in the Internet Routing Table: 136
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: 1487
Unregistered ASNs in the Routing Table: 819
Number of 32-bit ASNs allocated by the RIRs: 1888
Number of 32-bit ASNs visible in the Routing Table: 1539
Prefixes from 32-bit ASNs in the Routing Table: 3542
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 88
Number of addresses announced to Internet: 2487038432
Equivalent to 148 /8s, 61 /16s and 49 /24s
Percentage of available address space announced: 67.1
Percentage of allocated address space announced: 67.1
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: 161014
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 94732
Total APNIC prefixes after maximum aggregation: 30911
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 91190
Unique aggregates announced from the APNIC address blocks: 37975
APNIC Region origin ASes present in the Internet Routing Table: 4582
APNIC Prefixes per ASN: 19.90
APNIC Region origin ASes announcing only one prefix: 1265
APNIC Region transit ASes present in the Internet Routing Table: 712
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: 95
Number of APNIC addresses announced to Internet: 629005344
Equivalent to 37 /8s, 125 /16s and 220 /24s
Percentage of available APNIC address space announced: 79.8
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: 145623
Total ARIN prefixes after maximum aggregation: 74425
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 117554
Unique aggregates announced from the ARIN address blocks: 48133
ARIN Region origin ASes present in the Internet Routing Table: 14742
ARIN Prefixes per ASN: 7.97
ARIN Region origin ASes announcing only one prefix: 5668
ARIN Region transit ASes present in the Internet Routing Table: 1559
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: 804753408
Equivalent to 47 /8s, 247 /16s and 144 /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: 92925
Total RIPE prefixes after maximum aggregation: 50749
RIPE Deaggregation factor: 1.83
Prefixes being announced from the RIPE address blocks: 85578
Unique aggregates announced from the RIPE address blocks: 54141
RIPE Region origin ASes present in the Internet Routing Table: 16062
RIPE Prefixes per ASN: 5.33
RIPE Region origin ASes announcing only one prefix: 7977
RIPE Region transit ASes present in the Internet Routing Table: 2523
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: 1078
Number of RIPE addresses announced to Internet: 491130816
Equivalent to 29 /8s, 70 /16s and 15 /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: 35257
Total LACNIC prefixes after maximum aggregation: 7897
LACNIC Deaggregation factor: 4.46
Prefixes being announced from the LACNIC address blocks: 34682
Unique aggregates announced from the LACNIC address blocks: 18090
LACNIC Region origin ASes present in the Internet Routing Table: 1541
LACNIC Prefixes per ASN: 22.51
LACNIC Region origin ASes announcing only one prefix: 444
LACNIC Region transit ASes present in the Internet Routing Table: 279
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: 350
Number of LACNIC addresses announced to Internet: 91731584
Equivalent to 5 /8s, 119 /16s and 182 /24s
Percentage of available LACNIC address space announced: 60.8
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: 8559
Total AfriNIC prefixes after maximum aggregation: 2019
AfriNIC Deaggregation factor: 4.24
Prefixes being announced from the AfriNIC address blocks: 6638
Unique aggregates announced from the AfriNIC address blocks: 1988
AfriNIC Region origin ASes present in the Internet Routing Table: 495
AfriNIC Prefixes per ASN: 13.41
AfriNIC Region origin ASes announcing only one prefix: 159
AfriNIC Region transit ASes present in the Internet Routing Table: 109
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: 27857408
Equivalent to 1 /8s, 169 /16s and 18 /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 1893 519 33 PT TELEKOMUNIKASI INDONESIA
7545 1611 303 86 TPG Internet Pty Ltd
4755 1539 637 173 TATA Communications formerly
7552 1389 1064 8 Vietel Corporation
9583 1172 80 504 Sify Limited
9829 1166 989 28 BSNL National Internet Backbo
4808 1082 2101 308 CNCGROUP IP network: China169
24560 966 343 220 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 3545 3814 220 bellsouth.net, inc.
7029 2287 1016 197 Windstream Communications Inc
18566 2098 383 177 Covad Communications
1785 1840 680 122 PaeTec Communications, Inc.
4323 1628 1084 393 Time Warner Telecom
20115 1594 1546 620 Charter Communications
22773 1462 2907 100 Cox Communications, Inc.
30036 1415 254 673 Mediacom Communications Corp
19262 1395 4728 400 Verizon Global Networks
7018 1320 7030 863 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
3352 2203 2317 51 Ibernet, Internet Access Netw
8402 1507 352 13 Corbina telecom
6830 653 1927 415 UPC Distribution Services
34984 584 108 180 BILISIM TELEKOM
20940 548 182 422 Akamai Technologies European
3320 504 8169 384 Deutsche Telekom AG
3292 481 2080 408 TDC Tele Danmark
12479 480 593 7 Uni2 Autonomous System
8866 459 133 26 Bulgarian Telecommunication C
29049 423 31 55 AzerSat LLC.
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 1694 313 155 TVCABLE BOGOTA
28573 1434 1032 69 NET Servicos de Comunicao S.A
8151 1422 2913 351 UniNet S.A. de C.V.
7303 1229 747 177 Telecom Argentina Stet-France
27947 588 72 84 Telconet S.A
22047 580 322 17 VTR PUNTO NET S.A.
6503 571 450 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 804 146 36 LINKdotNET AS number
8452 651 446 12 TEDATA
15475 443 74 8 Nile Online
36992 300 415 21 Etisalat MISR
3741 280 939 229 The Internet Solution
6713 244 519 14 Itissalat Al-MAGHRIB
15706 240 32 6 Sudatel Internet Exchange Aut
29571 218 17 13 Ci Telecom Autonomous system
33776 208 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 3545 3814 220 bellsouth.net, inc.
4766 2502 11095 963 Korea Telecom (KIX)
7029 2287 1016 197 Windstream Communications Inc
3352 2203 2317 51 Ibernet, Internet Access Netw
18566 2098 383 177 Covad Communications
17974 1893 519 33 PT TELEKOMUNIKASI INDONESIA
1785 1840 680 122 PaeTec Communications, Inc.
10620 1694 313 155 TVCABLE BOGOTA
4323 1628 1084 393 Time Warner Telecom
7545 1611 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
3352 2203 2152 Ibernet, Internet Access Netw
7029 2287 2090 Windstream Communications Inc
18566 2098 1921 Covad Communications
17974 1893 1860 PT TELEKOMUNIKASI INDONESIA
1785 1840 1718 PaeTec Communications, Inc.
4766 2502 1539 Korea Telecom (KIX)
10620 1694 1539 TVCABLE BOGOTA
7545 1611 1525 TPG Internet Pty Ltd
8402 1507 1494 Corbina telecom
7552 1389 1381 Vietel Corporation
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
41.222.79.0/24 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 /12:236
/13:464 /14:808 /15:1424 /16:12013 /17:6036 /18:10053
/19:19966 /20:27490 /21:27632 /22:37366 /23:35938 /24:197730
/25:1232 /26:1358 /27:750 /28:163 /29:4 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2185 3545 bellsouth.net, inc.
18566 2047 2098 Covad Communications
7029 1959 2287 Windstream Communications Inc
3352 1751 2203 Ibernet, Internet Access Netw
10620 1589 1694 TVCABLE BOGOTA
8402 1483 1507 Corbina telecom
30036 1376 1415 Mediacom Communications Corp
11492 1118 1156 Cable One
1785 1057 1840 PaeTec Communications, Inc.
7011 1048 1166 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:406 2:488 4:15 5:1 6:3 8:361
12:1956 13:1 14:538 15:11 16:3 17:7
20:9 23:58 24:1678 27:965 31:603 32:65
33:4 34:2 36:4 38:754 40:110 41:2671
42:52 44:3 46:999 47:3 49:297 50:441
52:13 55:6 56:2 57:37 58:884 59:495
60:362 61:1182 62:1085 63:1958 64:4054 65:2308
66:4286 67:1982 68:1154 69:3191 70:891 71:379
72:1804 74:2573 75:389 76:319 77:891 78:864
79:477 80:1591 81:939 82:494 83:575 84:621
85:1118 86:405 87:892 88:418 89:1595 90:237
91:4208 92:531 93:1540 94:1309 95:1087 96:437
97:284 98:920 99:37 101:212 103:387 106:70
107:73 108:72 109:1049 110:669 111:788 112:331
113:487 114:602 115:704 116:877 117:720 118:900
119:1247 120:339 121:692 122:1573 123:1016 124:1357
125:1361 128:249 129:184 130:165 131:592 132:145
133:21 134:219 135:54 136:213 137:140 138:284
139:123 140:482 141:297 142:389 143:432 144:492
145:63 146:475 147:215 148:640 149:267 150:166
151:192 152:447 153:178 154:7 155:388 156:208
157:362 158:153 159:479 160:323 161:214 162:340
163:174 164:509 165:370 166:537 167:440 168:741
169:146 170:872 171:86 172:4 173:1706 174:685
175:425 176:278 177:346 178:1064 180:1089 181:36
182:653 183:217 184:378 185:1 186:1295 187:706
188:937 189:872 190:5134 192:5920 193:5040 194:3562
195:3106 196:1251 197:164 198:3624 199:4170 200:5519
201:1682 202:8567 203:8493 204:4290 205:2361 206:2667
207:2830 208:4026 209:3570 210:2695 211:1460 212:2078
213:1799 214:777 215:95 216:4926 217:1616 218:566
219:343 220:1245 221:514 222:345 223:272
End of report
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