Routing Table Report 04:00 +10GMT Thu 28 Jul, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 365210
Prefixes after maximum aggregation: 165751
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 181242
Total ASes present in the Internet Routing Table: 38296
Prefixes per ASN: 9.54
Origin-only ASes present in the Internet Routing Table: 31806
Origin ASes announcing only one prefix: 15306
Transit ASes present in the Internet Routing Table: 5217
Transit-only ASes present in the Internet Routing Table: 136
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 34
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 995
Unregistered ASNs in the Routing Table: 562
Number of 32-bit ASNs allocated by the RIRs: 1594
Number of 32-bit ASNs visible in the Routing Table: 1273
Prefixes from 32-bit ASNs in the Routing Table: 2934
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 117
Number of addresses announced to Internet: 2486895200
Equivalent to 148 /8s, 59 /16s and 2 /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: 91.1
Total number of prefixes smaller than registry allocations: 152335
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 91408
Total APNIC prefixes after maximum aggregation: 30400
APNIC Deaggregation factor: 3.01
Prefixes being announced from the APNIC address blocks: 88033
Unique aggregates announced from the APNIC address blocks: 37489
APNIC Region origin ASes present in the Internet Routing Table: 4527
APNIC Prefixes per ASN: 19.45
APNIC Region origin ASes announcing only one prefix: 1255
APNIC Region transit ASes present in the Internet Routing Table: 717
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 62
Number of APNIC addresses announced to Internet: 622446144
Equivalent to 37 /8s, 25 /16s and 198 /24s
Percentage of available APNIC address space announced: 78.9
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
55296-56319, 131072-132095
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: 142004
Total ARIN prefixes after maximum aggregation: 73116
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113809
Unique aggregates announced from the ARIN address blocks: 46745
ARIN Region origin ASes present in the Internet Routing Table: 14525
ARIN Prefixes per ASN: 7.84
ARIN Region origin ASes announcing only one prefix: 5570
ARIN Region transit ASes present in the Internet Routing Table: 1533
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: 803179904
Equivalent to 47 /8s, 223 /16s and 141 /24s
Percentage of available ARIN address space announced: 63.8
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: 86701
Total RIPE prefixes after maximum aggregation: 49401
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 80044
Unique aggregates announced from the RIPE address blocks: 53023
RIPE Region origin ASes present in the Internet Routing Table: 15820
RIPE Prefixes per ASN: 5.06
RIPE Region origin ASes announcing only one prefix: 7889
RIPE Region transit ASes present in the Internet Routing Table: 2508
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: 923
Number of RIPE addresses announced to Internet: 484345216
Equivalent to 28 /8s, 222 /16s and 133 /24s
Percentage of available RIPE address space announced: 78.0
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: 33775
Total LACNIC prefixes after maximum aggregation: 7635
LACNIC Deaggregation factor: 4.42
Prefixes being announced from the LACNIC address blocks: 32967
Unique aggregates announced from the LACNIC address blocks: 17235
LACNIC Region origin ASes present in the Internet Routing Table: 1491
LACNIC Prefixes per ASN: 22.11
LACNIC Region origin ASes announcing only one prefix: 440
LACNIC Region transit ASes present in the Internet Routing Table: 277
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: 272
Number of LACNIC addresses announced to Internet: 86948352
Equivalent to 5 /8s, 46 /16s and 186 /24s
Percentage of available LACNIC address space announced: 57.6
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: 8197
Total AfriNIC prefixes after maximum aggregation: 1967
AfriNIC Deaggregation factor: 4.17
Prefixes being announced from the AfriNIC address blocks: 6496
Unique aggregates announced from the AfriNIC address blocks: 2020
AfriNIC Region origin ASes present in the Internet Routing Table: 476
AfriNIC Prefixes per ASN: 13.65
AfriNIC Region origin ASes announcing only one prefix: 152
AfriNIC Region transit ASes present in the Internet Routing Table: 105
Average AfriNIC Region AS path length visible: 4.8
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 25743616
Equivalent to 1 /8s, 136 /16s and 209 /24s
Percentage of available AfriNIC address space announced: 38.4
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 2483 11045 947 Korea Telecom (KIX)
17974 1782 508 32 PT TELEKOMUNIKASI INDONESIA
7545 1556 301 85 TPG Internet Pty Ltd
4755 1509 631 171 TATA Communications formerly
7552 1269 1064 7 Vietel Corporation
24560 1162 336 187 Bharti Airtel Ltd., Telemedia
9829 1121 936 41 BSNL National Internet Backbo
9583 1061 78 499 Sify Limited
4808 1051 2093 299 CNCGROUP IP network: China169
17488 966 188 113 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 3618 3818 237 bellsouth.net, inc.
18566 1913 365 241 Covad Communications
1785 1810 681 121 PaeTec Communications, Inc.
7029 1721 1006 196 Windstream Communications Inc
4323 1616 1082 401 Time Warner Telecom
20115 1590 1538 623 Charter Communications
19262 1411 4760 391 Verizon Global Networks
7018 1360 7068 887 AT&T WorldNet Services
22773 1354 2897 88 Cox Communications, Inc.
2386 1257 520 907 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 533 106 186 BILISIM TELEKOM
6830 512 1788 316 UPC Distribution Services
3292 468 2078 403 TDC Tele Danmark
20940 465 133 357 Akamai Technologies European
8866 453 133 26 Bulgarian Telecommunication C
12479 453 593 7 Uni2 Autonomous System
29049 431 31 49 AzerSat LLC.
3320 425 8151 371 Deutsche Telekom AG
8551 404 354 44 Bezeq International
702 397 1802 310 UUNET - Commercial IP service
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 1561 287 164 TVCABLE BOGOTA
8151 1415 2746 354 UniNet S.A. de C.V.
28573 1283 995 78 NET Servicos de Comunicao S.A
7303 1033 545 174 Telecom Argentina Stet-France
6503 743 450 68 AVANTEL, S.A.
14420 701 56 82 CORPORACION NACIONAL DE TELEC
22047 578 322 17 VTR PUNTO NET S.A.
3816 532 232 97 Empresa Nacional de Telecomun
7738 516 986 31 Telecomunicacoes da Bahia S.A
27947 509 53 54 Telconet 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 799 147 36 LINKdotNET AS number
8452 794 445 11 TEDATA
15475 510 74 8 Nile Online
3741 265 937 226 The Internet Solution
6713 260 519 14 Itissalat Al-MAGHRIB
36992 259 415 15 Etisalat MISR
33776 226 13 5 Starcomms Nigeria Limited
15706 198 32 6 Sudatel Internet Exchange Aut
24835 177 78 10 RAYA Telecom - Egypt
29571 158 17 11 Ci Telecom Autonomous system
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 3618 3818 237 bellsouth.net, inc.
23456 2934 710 1573 32-bit ASN transition
4766 2483 11045 947 Korea Telecom (KIX)
18566 1913 365 241 Covad Communications
1785 1810 681 121 PaeTec Communications, Inc.
17974 1782 508 32 PT TELEKOMUNIKASI INDONESIA
7029 1721 1006 196 Windstream Communications Inc
4323 1616 1082 401 Time Warner Telecom
20115 1590 1538 623 Charter Communications
10620 1561 287 164 TVCABLE BOGOTA
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 1782 1750 PT TELEKOMUNIKASI INDONESIA
1785 1810 1689 PaeTec Communications, Inc.
18566 1913 1672 Covad Communications
4766 2483 1536 Korea Telecom (KIX)
7029 1721 1525 Windstream Communications Inc
7545 1556 1471 TPG Internet Pty Ltd
10620 1561 1397 TVCABLE BOGOTA
23456 2934 1361 32-bit ASN transition
4755 1509 1338 TATA Communications formerly
22773 1354 1266 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<<
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 /8:20 /9:12 /10:27 /11:80 /12:232
/13:465 /14:799 /15:1404 /16:12050 /17:5892 /18:9816
/19:19528 /20:26222 /21:26310 /22:34988 /23:33935 /24:190123
/25:1089 /26:1265 /27:738 /28:198 /29:9 /30:2
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2240 3618 bellsouth.net, inc.
18566 1869 1913 Covad Communications
10620 1456 1561 TVCABLE BOGOTA
23456 1450 2934 32-bit ASN transition
7029 1400 1721 Windstream Communications Inc
11492 1094 1140 Cable One
7011 1056 1158 Citizens Utilities
1785 1053 1810 PaeTec Communications, Inc.
6478 963 991 AT&T Worldnet Services
22773 868 1354 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:340 2:48 4:16 5:1 6:3 8:338
12:1957 13:1 14:491 15:15 16:3 17:5
20:10 23:17 24:1677 27:852 31:511 32:64
33:4 34:2 36:4 38:728 40:104 41:2620
42:35 44:3 46:1051 47:3 49:204 50:370
52:13 54:2 55:4 56:2 57:34 58:864
59:486 60:378 61:1185 62:1040 63:1929 64:4002
65:2296 66:3940 67:1884 68:1118 69:3056 70:792
71:373 72:1868 74:2446 75:335 76:342 77:862
78:709 79:468 80:1112 81:839 82:501 83:466
84:686 85:1069 86:518 87:763 88:333 89:1539
90:224 91:3962 92:527 93:1058 94:1340 95:864
96:420 97:263 98:889 99:37 101:81 103:158
106:77 107:25 108:73 109:1024 110:610 111:715
112:301 113:407 114:558 115:682 116:988 117:678
118:843 119:1181 120:313 121:678 122:1606 123:977
124:1312 125:1328 128:246 129:169 130:170 131:579
132:113 133:21 134:214 135:52 136:215 137:139
138:300 139:115 140:480 141:254 142:403 143:420
144:477 145:55 146:454 147:219 148:671 149:249
150:166 151:189 152:341 153:182 154:5 155:399
156:198 157:356 158:140 159:454 160:315 161:205
162:310 163:165 164:504 165:368 166:531 167:433
168:746 169:153 170:836 171:81 172:1 173:1630
174:636 175:385 176:144 177:170 178:998 180:913
181:26 182:511 183:233 184:345 185:1 186:1313
187:755 188:893 189:952 190:5012 192:5913 193:4972
194:3515 195:3019 196:1213 197:42 198:3583 199:3979
200:5562 201:1468 202:8395 203:8461 204:4234 205:2317
206:2665 207:2802 208:3994 209:3447 210:2680 211:1453
212:2085 213:1743 214:790 215:70 216:4939 217:1631
218:549 219:348 220:1232 221:494 222:359 223:229
End of report
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