Routing Table Report 04:00 +10GMT Thu 27 Oct, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 380904
Prefixes after maximum aggregation: 166266
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 185894
Total ASes present in the Internet Routing Table: 39178
Prefixes per ASN: 9.72
Origin-only ASes present in the Internet Routing Table: 32362
Origin ASes announcing only one prefix: 15515
Transit ASes present in the Internet Routing Table: 5257
Transit-only ASes present in the Internet Routing Table: 131
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: 1528
Unregistered ASNs in the Routing Table: 836
Number of 32-bit ASNs allocated by the RIRs: 1897
Number of 32-bit ASNs visible in the Routing Table: 1559
Prefixes from 32-bit ASNs in the Routing Table: 3586
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 88
Number of addresses announced to Internet: 2488497760
Equivalent to 148 /8s, 83 /16s and 118 /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: 161192
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 94427
Total APNIC prefixes after maximum aggregation: 30981
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 90875
Unique aggregates announced from the APNIC address blocks: 38009
APNIC Region origin ASes present in the Internet Routing Table: 4587
APNIC Prefixes per ASN: 19.81
APNIC Region origin ASes announcing only one prefix: 1263
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: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 98
Number of APNIC addresses announced to Internet: 629292384
Equivalent to 37 /8s, 130 /16s and 61 /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: 145749
Total ARIN prefixes after maximum aggregation: 74509
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 117659
Unique aggregates announced from the ARIN address blocks: 48152
ARIN Region origin ASes present in the Internet Routing Table: 14746
ARIN Prefixes per ASN: 7.98
ARIN Region origin ASes announcing only one prefix: 5667
ARIN Region transit ASes present in the Internet Routing Table: 1558
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: 804668928
Equivalent to 47 /8s, 246 /16s and 70 /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: 93008
Total RIPE prefixes after maximum aggregation: 50782
RIPE Deaggregation factor: 1.83
Prefixes being announced from the RIPE address blocks: 85653
Unique aggregates announced from the RIPE address blocks: 54255
RIPE Region origin ASes present in the Internet Routing Table: 16074
RIPE Prefixes per ASN: 5.33
RIPE Region origin ASes announcing only one prefix: 7980
RIPE Region transit ASes present in the Internet Routing Table: 2521
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: 1092
Number of RIPE addresses announced to Internet: 491190464
Equivalent to 29 /8s, 70 /16s and 248 /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: 35438
Total LACNIC prefixes after maximum aggregation: 7896
LACNIC Deaggregation factor: 4.49
Prefixes being announced from the LACNIC address blocks: 34871
Unique aggregates announced from the LACNIC address blocks: 18096
LACNIC Region origin ASes present in the Internet Routing Table: 1542
LACNIC Prefixes per ASN: 22.61
LACNIC Region origin ASes announcing only one prefix: 447
LACNIC Region transit ASes present in the Internet Routing Table: 282
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: 353
Number of LACNIC addresses announced to Internet: 92286656
Equivalent to 5 /8s, 128 /16s and 46 /24s
Percentage of available LACNIC address space announced: 61.1
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: 8526
Total AfriNIC prefixes after maximum aggregation: 2020
AfriNIC Deaggregation factor: 4.22
Prefixes being announced from the AfriNIC address blocks: 6599
Unique aggregates announced from the AfriNIC address blocks: 1989
AfriNIC Region origin ASes present in the Internet Routing Table: 493
AfriNIC Prefixes per ASN: 13.39
AfriNIC Region origin ASes announcing only one prefix: 158
AfriNIC Region transit ASes present in the Internet Routing Table: 108
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: 27903488
Equivalent to 1 /8s, 169 /16s and 198 /24s
Percentage of available AfriNIC address space announced: 41.6
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 11096 967 Korea Telecom (KIX)
17974 1924 519 33 PT TELEKOMUNIKASI INDONESIA
7545 1612 303 85 TPG Internet Pty Ltd
4755 1541 637 175 TATA Communications formerly
9829 1166 989 28 BSNL National Internet Backbo
9583 1091 80 499 Sify Limited
4808 1090 2103 312 CNCGROUP IP network: China169
7552 979 1062 11 Vietel Corporation
24560 964 342 218 Bharti Airtel Ltd., Telemedia
18101 952 166 150 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 2329 1016 197 Windstream Communications Inc
18566 2098 383 177 Covad Communications
1785 1840 680 122 PaeTec Communications, Inc.
4323 1623 1078 388 Time Warner Telecom
20115 1595 1546 620 Charter Communications
22773 1464 2907 100 Cox Communications, Inc.
19262 1395 4728 400 Verizon Global Networks
30036 1390 252 670 Mediacom Communications Corp
7018 1317 7030 862 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 2187 2317 51 Ibernet, Internet Access Netw
8402 1522 352 13 Corbina telecom
6830 653 1927 415 UPC Distribution Services
34984 590 108 180 BILISIM TELEKOM
20940 548 182 422 Akamai Technologies European
3320 504 8169 384 Deutsche Telekom AG
12479 482 595 8 Uni2 Autonomous System
3292 478 2074 405 TDC Tele Danmark
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 1468 1032 69 NET Servicos de Comunicao S.A
8151 1430 2929 352 UniNet S.A. de C.V.
7303 1229 747 177 Telecom Argentina Stet-France
27947 589 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 538 233 95 Empresa Nacional de Telecomun
11172 523 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 802 146 36 LINKdotNET AS number
8452 640 446 12 TEDATA
15475 443 74 8 Nile Online
36992 298 415 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 209 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 2507 11096 967 Korea Telecom (KIX)
7029 2329 1016 197 Windstream Communications Inc
3352 2187 2317 51 Ibernet, Internet Access Netw
18566 2098 383 177 Covad Communications
17974 1924 519 33 PT TELEKOMUNIKASI INDONESIA
1785 1840 680 122 PaeTec Communications, Inc.
10620 1694 313 155 TVCABLE BOGOTA
4323 1623 1078 388 Time Warner Telecom
7545 1612 303 85 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 2187 2136 Ibernet, Internet Access Netw
7029 2329 2132 Windstream Communications Inc
18566 2098 1921 Covad Communications
17974 1924 1891 PT TELEKOMUNIKASI INDONESIA
1785 1840 1718 PaeTec Communications, Inc.
4766 2507 1540 Korea Telecom (KIX)
10620 1694 1539 TVCABLE BOGOTA
7545 1612 1527 TPG Internet Pty Ltd
8402 1522 1509 Corbina telecom
28573 1468 1399 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
41.222.79.0/24 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
/13:465 /14:808 /15:1427 /16:12024 /17:6071 /18:10068
/19:19936 /20:27419 /21:27671 /22:37370 /23:35935 /24:197853
/25:1174 /26:1367 /27:764 /28:168 /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 1999 2329 Windstream Communications Inc
3352 1736 2187 Ibernet, Internet Access Netw
10620 1589 1694 TVCABLE BOGOTA
8402 1498 1522 Corbina telecom
30036 1351 1390 Mediacom Communications Corp
11492 1110 1148 Cable One
1785 1056 1840 PaeTec Communications, Inc.
7011 1050 1168 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:408 2:486 4:15 5:1 6:3 7:1
8:361 12:1956 13:1 14:540 15:11 16:3
17:7 20:9 23:59 24:1672 27:963 31:616
32:65 33:4 34:2 36:4 38:756 40:110
41:2660 42:54 44:3 46:1007 47:3 49:292
50:439 52:13 55:6 56:2 57:40 58:884
59:489 60:363 61:1173 62:1084 63:1960 64:4055
65:2308 66:4285 67:1985 68:1153 69:3192 70:894
71:380 72:1802 74:2572 75:392 76:320 77:885
78:872 79:455 80:1582 81:954 82:502 83:576
84:619 85:1126 86:398 87:890 88:419 89:1601
90:238 91:4229 92:531 93:1539 94:1310 95:1090
96:434 97:284 98:923 99:37 101:220 103:404
106:70 107:77 108:72 109:1048 110:664 111:792
112:332 113:486 114:614 115:696 116:888 117:710
118:901 119:1264 120:337 121:692 122:1566 123:1015
124:1356 125:1318 128:243 129:185 130:165 131:592
132:146 133:21 134:219 135:54 136:213 137:140
138:284 139:123 140:485 141:300 142:389 143:417
144:492 145:63 146:473 147:223 148:640 149:265
150:166 151:192 152:447 153:178 154:7 155:388
156:208 157:363 158:153 159:481 160:329 161:214
162:341 163:174 164:510 165:370 166:537 167:437
168:741 169:146 170:872 171:86 172:4 173:1713
174:685 175:423 176:293 177:356 178:1072 180:1122
181:36 182:653 183:216 184:378 185:1 186:1303
187:707 188:939 189:870 190:5135 192:5930 193:5044
194:3558 195:3109 196:1252 197:161 198:3624 199:4174
200:5531 201:1687 202:8572 203:8482 204:4299 205:2362
206:2671 207:2816 208:4017 209:3569 210:2714 211:1459
212:2088 213:1799 214:797 215:95 216:4915 217:1613
218:563 219:343 220:1219 221:517 222:345 223:271
End of report