Routing Table Report 04:00 +10GMT Fri 01 Jul, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 362290
Prefixes after maximum aggregation: 164685
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 179648
Total ASes present in the Internet Routing Table: 38075
Prefixes per ASN: 9.52
Origin-only ASes present in the Internet Routing Table: 31684
Origin ASes announcing only one prefix: 15237
Transit ASes present in the Internet Routing Table: 5174
Transit-only ASes present in the Internet Routing Table: 135
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 33
Max AS path prepend of ASN (22394) 27
Prefixes from unregistered ASNs in the Routing Table: 869
Unregistered ASNs in the Routing Table: 478
Number of 32-bit ASNs allocated by the RIRs: 1510
Number of 32-bit ASNs visible in the Routing Table: 1217
Prefixes from 32-bit ASNs in the Routing Table: 2772
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 133
Number of addresses announced to Internet: 2492526784
Equivalent to 148 /8s, 144 /16s and 240 /24s
Percentage of available address space announced: 67.2
Percentage of allocated address space announced: 67.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.0
Total number of prefixes smaller than registry allocations: 150984
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89983
Total APNIC prefixes after maximum aggregation: 30240
APNIC Deaggregation factor: 2.98
Prefixes being announced from the APNIC address blocks: 86731
Unique aggregates announced from the APNIC address blocks: 37088
APNIC Region origin ASes present in the Internet Routing Table: 4497
APNIC Prefixes per ASN: 19.29
APNIC Region origin ASes announcing only one prefix: 1247
APNIC Region transit ASes present in the Internet Routing Table: 711
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 53
Number of APNIC addresses announced to Internet: 621100064
Equivalent to 37 /8s, 5 /16s and 60 /24s
Percentage of available APNIC address space announced: 78.8
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: 141372
Total ARIN prefixes after maximum aggregation: 72740
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113333
Unique aggregates announced from the ARIN address blocks: 46397
ARIN Region origin ASes present in the Internet Routing Table: 14459
ARIN Prefixes per ASN: 7.84
ARIN Region origin ASes announcing only one prefix: 5525
ARIN Region transit ASes present in the Internet Routing Table: 1518
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 30
Number of ARIN region 32-bit ASNs visible in the Routing Table: 13
Number of ARIN addresses announced to Internet: 819630464
Equivalent to 48 /8s, 218 /16s and 145 /24s
Percentage of available ARIN address space announced: 65.1
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: 86328
Total RIPE prefixes after maximum aggregation: 49067
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 79732
Unique aggregates announced from the RIPE address blocks: 52698
RIPE Region origin ASes present in the Internet Routing Table: 15777
RIPE Prefixes per ASN: 5.05
RIPE Region origin ASes announcing only one prefix: 7876
RIPE Region transit ASes present in the Internet Routing Table: 2501
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: 895
Number of RIPE addresses announced to Internet: 478574080
Equivalent to 28 /8s, 134 /16s and 118 /24s
Percentage of available RIPE address space announced: 77.1
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: 33447
Total LACNIC prefixes after maximum aggregation: 7575
LACNIC Deaggregation factor: 4.42
Prefixes being announced from the LACNIC address blocks: 32521
Unique aggregates announced from the LACNIC address blocks: 16997
LACNIC Region origin ASes present in the Internet Routing Table: 1473
LACNIC Prefixes per ASN: 22.08
LACNIC Region origin ASes announcing only one prefix: 442
LACNIC Region transit ASes present in the Internet Routing Table: 269
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: 252
Number of LACNIC addresses announced to Internet: 85710336
Equivalent to 5 /8s, 27 /16s and 214 /24s
Percentage of available LACNIC address space announced: 56.8
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: 8176
Total AfriNIC prefixes after maximum aggregation: 1963
AfriNIC Deaggregation factor: 4.17
Prefixes being announced from the AfriNIC address blocks: 6447
Unique aggregates announced from the AfriNIC address blocks: 1968
AfriNIC Region origin ASes present in the Internet Routing Table: 467
AfriNIC Prefixes per ASN: 13.81
AfriNIC Region origin ASes announcing only one prefix: 147
AfriNIC Region transit ASes present in the Internet Routing Table: 101
Average AfriNIC Region AS path length visible: 4.7
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: 24262400
Equivalent to 1 /8s, 114 /16s and 55 /24s
Percentage of available AfriNIC address space announced: 36.2
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 2455 9500 928 Korea Telecom (KIX)
17974 1818 461 43 PT TELEKOMUNIKASI INDONESIA
7545 1543 301 85 TPG Internet Pty Ltd
4755 1492 635 169 TATA Communications formerly
24560 1153 336 187 Bharti Airtel Ltd., Telemedia
9583 1056 78 506 Sify Limited
4808 1051 2092 299 CNCGROUP IP network: China169
9829 1047 888 54 BSNL National Internet Backbo
17488 960 186 103 Hathway IP Over Cable Interne
18101 931 116 139 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 3619 3819 247 bellsouth.net, inc.
18566 1913 365 241 Covad Communications
1785 1801 681 122 PaeTec Communications, Inc.
4323 1661 1082 399 Time Warner Telecom
20115 1588 1531 635 Charter Communications
19262 1450 4806 370 Verizon Global Networks
7018 1392 7092 869 AT&T WorldNet Services
22773 1346 2897 87 Cox Communications, Inc.
6478 1337 248 613 AT&T Worldnet Services
7029 1309 790 298 Windstream Communications Inc
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 534 106 185 BILISIM TELEKOM
6830 513 1780 318 UPC Distribution Services
3292 468 2080 403 TDC Tele Danmark
20940 466 136 359 Akamai Technologies European
8866 451 134 26 Bulgarian Telecommunication C
29049 444 33 45 AzerSat LLC.
12479 440 593 7 Uni2 Autonomous System
3320 420 8151 367 Deutsche Telekom AG
8551 404 354 44 Bezeq International
702 396 1803 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 1538 282 157 TVCABLE BOGOTA
8151 1423 2742 356 UniNet S.A. de C.V.
28573 1274 996 80 NET Servicos de Comunicao S.A
7303 995 507 170 Telecom Argentina Stet-France
6503 746 354 74 AVANTEL, S.A.
14420 685 55 81 CORPORACION NACIONAL DE TELEC
22047 576 322 17 VTR PUNTO NET S.A.
3816 534 232 92 Empresa Nacional de Telecomun
7738 516 986 31 Telecomunicacoes da Bahia S.A
27947 510 53 57 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 791 147 37 LINKdotNET AS number
8452 789 445 11 TEDATA
15475 524 74 8 Nile Online
36992 315 415 14 Etisalat MISR
3741 261 937 223 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
24835 211 78 10 RAYA Telecom - Egypt
33776 209 12 10 Starcomms Nigeria Limited
29571 192 17 11 Ci Telecom Autonomous system
16637 149 441 86 MTN Network Solutions
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 3619 3819 247 bellsouth.net, inc.
23456 2772 689 1503 32-bit ASN transition
4766 2455 9500 928 Korea Telecom (KIX)
18566 1913 365 241 Covad Communications
17974 1818 461 43 PT TELEKOMUNIKASI INDONESIA
1785 1801 681 122 PaeTec Communications, Inc.
4323 1661 1082 399 Time Warner Telecom
20115 1588 1531 635 Charter Communications
7545 1543 301 85 TPG Internet Pty Ltd
10620 1538 282 157 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 1818 1775 PT TELEKOMUNIKASI INDONESIA
1785 1801 1679 PaeTec Communications, Inc.
18566 1913 1672 Covad Communications
4766 2455 1527 Korea Telecom (KIX)
7545 1543 1458 TPG Internet Pty Ltd
10620 1538 1381 TVCABLE BOGOTA
4755 1492 1323 TATA Communications formerly
23456 2772 1269 32-bit ASN transition
4323 1661 1262 Time Warner Telecom
22773 1346 1259 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
27.0.128.0/17 7514 Media Exchange, Inc.
41.190.32.0/23 31856 CABSAS
41.190.34.0/23 31856 CABSAS
41.190.36.0/23 31856 CABSAS
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 /8:22 /9:12 /10:28 /11:81 /12:231
/13:461 /14:801 /15:1396 /16:11985 /17:5877 /18:9765
/19:19447 /20:25844 /21:26150 /22:34605 /23:33519 /24:188746
/25:1089 /26:1273 /27:740 /28:201 /29:9 /30:2
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2225 3619 bellsouth.net, inc.
18566 1869 1913 Covad Communications
10620 1433 1538 TVCABLE BOGOTA
23456 1351 2772 32-bit ASN transition
6478 1308 1337 AT&T Worldnet Services
11492 1090 1136 Cable One
7011 1056 1157 Citizens Utilities
7029 1056 1309 Windstream Communications Inc
1785 1052 1801 PaeTec Communications, Inc.
22773 861 1346 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:319 2:46 4:16 5:1 6:3 8:338
12:1975 13:1 14:471 15:15 16:3 17:8
20:10 23:12 24:1656 27:802 31:486 32:64
33:4 34:2 36:4 37:1 38:739 39:3
40:103 41:2539 42:10 44:3 46:990 47:3
49:196 50:431 52:13 54:2 55:4 56:2
57:33 58:859 59:476 60:386 61:1173 62:1048
63:1937 64:3947 65:2275 66:3874 67:1902 68:1094
69:3023 70:757 71:395 72:1890 74:2380 75:320
76:340 77:884 78:712 79:461 80:1119 81:846
82:495 83:457 84:687 85:1080 86:552 87:759
88:336 89:1531 90:211 91:3911 92:536 93:1048
94:1319 95:851 96:446 97:255 98:890 99:36
101:77 103:99 106:10 107:15 108:70 109:1016
110:600 111:711 112:303 113:409 114:542 115:665
116:967 117:671 118:851 119:1156 120:307 121:670
122:1612 123:962 124:1298 125:1240 128:246 129:172
130:167 131:577 132:112 133:21 134:214 135:48
136:215 137:136 138:299 139:115 140:480 141:239
142:403 143:415 144:482 145:54 146:448 147:214
148:657 149:247 150:165 151:191 152:330 153:180
154:4 155:399 156:195 157:351 158:138 159:452
160:314 161:211 162:310 163:165 164:505 165:354
166:536 167:431 168:737 169:158 170:842 171:78
172:1 173:1636 174:611 175:373 176:141 177:153
178:995 180:896 181:19 182:486 183:223 184:310
185:1 186:1251 187:729 188:877 189:929 190:4957
192:5891 193:4973 194:3493 195:3030 196:1232 197:41
198:3574 199:3964 200:5550 201:1512 202:8389 203:8431
204:4225 205:2342 206:2677 207:2815 208:3959 209:3463
210:2690 211:1450 212:2100 213:1743 214:770 215:70
216:4931 217:1643 218:545 219:356 220:1203 221:492
222:361 223:179
End of report
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