Routing Table Report 04:00 +10GMT Fri 21 May, 2010
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 321308
Prefixes after maximum aggregation: 148403
Deaggregation factor: 2.17
Unique aggregates announced to Internet: 156907
Total ASes present in the Internet Routing Table: 34051
Prefixes per ASN: 9.44
Origin-only ASes present in the Internet Routing Table: 29552
Origin ASes announcing only one prefix: 14366
Transit ASes present in the Internet Routing Table: 4499
Transit-only ASes present in the Internet Routing Table: 104
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 24
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 330
Unregistered ASNs in the Routing Table: 122
Number of 32-bit ASNs allocated by the RIRs: 579
Prefixes from 32-bit ASNs in the Routing Table: 652
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 162
Number of addresses announced to Internet: 2221104448
Equivalent to 132 /8s, 99 /16s and 93 /24s
Percentage of available address space announced: 59.9
Percentage of allocated address space announced: 65.2
Percentage of available address space allocated: 91.9
Percentage of address space in use by end-sites: 82.9
Total number of prefixes smaller than registry allocations: 153954
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 76562
Total APNIC prefixes after maximum aggregation: 26756
APNIC Deaggregation factor: 2.86
Prefixes being announced from the APNIC address blocks: 73562
Unique aggregates announced from the APNIC address blocks: 32337
APNIC Region origin ASes present in the Internet Routing Table: 4042
APNIC Prefixes per ASN: 18.20
APNIC Region origin ASes announcing only one prefix: 1109
APNIC Region transit ASes present in the Internet Routing Table: 623
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 519862592
Equivalent to 30 /8s, 252 /16s and 121 /24s
Percentage of available APNIC address space announced: 77.5
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, 43/8, 58/8, 59/8, 60/8,
61/8, 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: 134124
Total ARIN prefixes after maximum aggregation: 69091
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 107042
Unique aggregates announced from the ARIN address blocks: 41485
ARIN Region origin ASes present in the Internet Routing Table: 13703
ARIN Prefixes per ASN: 7.81
ARIN Region origin ASes announcing only one prefix: 5283
ARIN Region transit ASes present in the Internet Routing Table: 1360
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 731086368
Equivalent to 43 /8s, 147 /16s and 126 /24s
Percentage of available ARIN address space announced: 62.3
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, 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, 54/8,
55/8, 56/8, 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, 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: 74025
Total RIPE prefixes after maximum aggregation: 42973
RIPE Deaggregation factor: 1.72
Prefixes being announced from the RIPE address blocks: 66986
Unique aggregates announced from the RIPE address blocks: 44033
RIPE Region origin ASes present in the Internet Routing Table: 14470
RIPE Prefixes per ASN: 4.63
RIPE Region origin ASes announcing only one prefix: 7462
RIPE Region transit ASes present in the Internet Routing Table: 2163
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 426202336
Equivalent to 25 /8s, 103 /16s and 84 /24s
Percentage of available RIPE address space announced: 74.7
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, 196608-197631
RIPE Address Blocks 2/8, 25/8, 31/8, 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,
193/8, 194/8, 195/8, 212/8, 213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 28393
Total LACNIC prefixes after maximum aggregation: 6818
LACNIC Deaggregation factor: 4.16
Prefixes being announced from the LACNIC address blocks: 26817
Unique aggregates announced from the LACNIC address blocks: 14011
LACNIC Region origin ASes present in the Internet Routing Table: 1293
LACNIC Prefixes per ASN: 20.74
LACNIC Region origin ASes announcing only one prefix: 405
LACNIC Region transit ASes present in the Internet Routing Table: 224
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 73193472
Equivalent to 4 /8s, 92 /16s and 216 /24s
Percentage of available LACNIC address space announced: 72.7
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 186/8, 187/8, 189/8, 190/8, 200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 7318
Total AfriNIC prefixes after maximum aggregation: 1858
AfriNIC Deaggregation factor: 3.94
Prefixes being announced from the AfriNIC address blocks: 5618
Unique aggregates announced from the AfriNIC address blocks: 1665
AfriNIC Region origin ASes present in the Internet Routing Table: 364
AfriNIC Prefixes per ASN: 15.43
AfriNIC Region origin ASes announcing only one prefix: 107
AfriNIC Region transit ASes present in the Internet Routing Table: 84
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC addresses announced to Internet: 17851648
Equivalent to 1 /8s, 16 /16s and 101 /24s
Percentage of available AfriNIC address space announced: 53.2
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1848 8422 483 Korea Telecom (KIX)
17488 1316 140 123 Hathway IP Over Cable Interne
4755 1306 293 151 TATA Communications formerly
7545 1209 232 105 TPG Internet Pty Ltd
17974 1057 281 18 PT TELEKOMUNIKASI INDONESIA
9583 994 73 485 Sify Limited
24560 898 304 167 Bharti Airtel Ltd., Telemedia
4134 886 21194 404 CHINANET-BACKBONE
4808 846 1589 215 CNCGROUP IP network: China169
9829 790 680 33 BSNL National Internet Backbo
Complete listing at http://thyme.apnic.net/current/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3933 3733 288 bellsouth.net, inc.
4323 3840 1116 404 Time Warner Telecom
1785 1784 699 131 PaeTec Communications, Inc.
7018 1541 5754 978 AT&T WorldNet Services
20115 1538 1506 654 Charter Communications
2386 1284 568 914 AT&T Data Communications Serv
6478 1247 257 98 AT&T Worldnet Services
3356 1188 10887 405 Level 3 Communications, LLC
22773 1155 2604 64 Cox Communications, Inc.
11492 1146 210 285 Cable One
Complete listing at http://thyme.apnic.net/current/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
35805 625 56 6 United Telecom of Georgia
3292 454 2027 393 TDC Tele Danmark
30890 442 116 207 Evolva Telecom
702 414 1869 328 UUNET - Commercial IP service
8551 402 355 38 Bezeq International
8866 394 117 18 Bulgarian Telecommunication C
3301 365 1413 321 TeliaNet Sweden
3320 364 7072 317 Deutsche Telekom AG
12479 337 576 5 Uni2 Autonomous System
3215 333 3218 101 France Telecom Transpac
Complete listing at http://thyme.apnic.net/current/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1553 2965 244 UniNet S.A. de C.V.
10620 1042 234 152 TVCABLE BOGOTA
28573 877 720 76 NET Servicos de Comunicao S.A
7303 728 375 105 Telecom Argentina Stet-France
6503 577 173 209 AVANTEL, S.A.
22047 545 310 15 VTR PUNTO NET S.A.
7738 477 922 30 Telecomunicacoes da Bahia S.A
3816 469 202 73 Empresa Nacional de Telecomun
14117 455 30 13 Telefonica del Sur S.A.
11172 444 99 72 Servicios Alestra S.A de C.V
Complete listing at http://thyme.apnic.net/current/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 1262 445 10 TEDATA
24863 712 147 39 LINKdotNET AS number
36992 634 276 180 Etisalat MISR
3741 270 852 231 The Internet Solution
2018 216 231 112 Tertiary Education Network
33776 213 11 14 Starcomms Nigeria Limited
6713 176 167 12 Itissalat Al-MAGHRIB
24835 175 78 10 RAYA Telecom - Egypt
29571 172 19 9 Ci Telecom Autonomous system
29975 132 490 17 Vodacom
Complete listing at http://thyme.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3933 3733 288 bellsouth.net, inc.
4323 3840 1116 404 Time Warner Telecom
4766 1848 8422 483 Korea Telecom (KIX)
1785 1784 699 131 PaeTec Communications, Inc.
8151 1553 2965 244 UniNet S.A. de C.V.
7018 1541 5754 978 AT&T WorldNet Services
20115 1538 1506 654 Charter Communications
17488 1316 140 123 Hathway IP Over Cable Interne
4755 1306 293 151 TATA Communications formerly
2386 1284 568 914 AT&T Data Communications Serv
Complete listing at http://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 3840 3436 Time Warner Telecom
1785 1784 1653 PaeTec Communications, Inc.
4766 1848 1365 Korea Telecom (KIX)
8151 1553 1309 UniNet S.A. de C.V.
8452 1262 1252 TEDATA
17488 1316 1193 Hathway IP Over Cable Interne
4755 1306 1155 TATA Communications formerly
6478 1247 1149 AT&T Worldnet Services
7545 1209 1104 TPG Internet Pty Ltd
22773 1155 1091 Cox Communications, Inc.
Complete listing at http://thyme.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
16927 UNALLOCATED 12.0.252.0/23 7018 AT&T WorldNet Servic
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 7018 AT&T WorldNet Servic
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
Complete listing at http://thyme.apnic.net/current/data-badAS
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
31.0.0.0/16 12654 RIPE NCC RIS Project
31.1.0.0/21 12654 RIPE NCC RIS Project
31.1.24.0/24 12654 RIPE NCC RIS Project
41.202.96.0/19 29571 Ci Telecom Autonomous system
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
41.223.188.0/24 22351 Intelsat
41.223.189.0/24 6453 Teleglobe Inc.
41.223.196.0/24 36990 Alkan Telecom Ltd
41.223.197.0/24 36990 Alkan Telecom Ltd
Complete listing at http://thyme.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 /9:10 /10:26 /11:67 /12:194
/13:401 /14:691 /15:1271 /16:11078 /17:5268 /18:8974
/19:18253 /20:22550 /21:22620 /22:29433 /23:29129 /24:168388
/25:951 /26:1199 /27:619 /28:143 /29:9 /30:7
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2517 3933 bellsouth.net, inc.
4323 2329 3840 Time Warner Telecom
4766 1480 1848 Korea Telecom (KIX)
1785 1247 1784 PaeTec Communications, Inc.
8452 1140 1262 TEDATA
17488 1063 1316 Hathway IP Over Cable Interne
11492 1062 1146 Cable One
18566 1040 1059 Covad Communications
10620 958 1042 TVCABLE BOGOTA
7018 926 1541 AT&T WorldNet Services
Complete listing at http://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1 4:13 8:262 12:2010 13:10 14:1
15:23 16:3 17:8 20:21 24:1428 27:96
31:1 32:47 33:12 38:671 40:98 41:2471
44:3 47:26 52:6 55:7 56:2 57:24
58:725 59:497 60:434 61:1071 62:1056 63:1978
64:3851 65:2364 66:4202 67:1843 68:1111 69:2821
70:713 71:243 72:1818 73:2 74:2293 75:251
76:309 77:870 78:633 79:411 80:1014 81:792
82:482 83:454 84:696 85:1061 86:465 87:704
88:329 89:1552 90:88 91:2760 92:501 93:1109
94:1426 95:596 96:280 97:313 98:547 99:28
108:32 109:478 110:353 111:504 112:261 113:282
114:402 115:557 116:1040 117:647 118:442 119:943
120:140 121:725 122:1433 123:899 124:1104 125:1293
128:209 129:210 130:192 131:560 132:246 133:17
134:193 135:44 136:228 137:172 138:255 139:92
140:484 141:136 142:353 143:386 144:479 145:52
146:426 147:164 148:610 149:288 150:153 151:169
152:261 153:167 154:2 155:324 156:154 157:324
158:107 159:375 160:313 161:185 162:262 163:179
164:407 165:346 166:477 167:393 168:784 169:161
170:705 171:51 172:2 173:738 174:650 175:93
176:1 178:91 180:474 182:60 183:247 184:45
186:383 187:336 188:1337 189:781 190:3669 192:5741
193:4696 194:3353 195:2770 196:1210 197:1 198:3566
199:3431 200:5376 201:1512 202:7999 203:8288 204:4062
205:2329 206:2540 207:3035 208:3900 209:3417 210:2500
211:1244 212:1735 213:1675 214:658 215:70 216:4588
217:1536 218:488 219:371 220:1107 221:400 222:315
223:1
End of report