[lacnog] [caribnog-discuss] Weekly Routing Table Report
Routing Analysis Role Account
cscora en apnic.net
Vie Sep 17 15:48:06 BRT 2010
This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.
The posting is sent to APOPS, NANOG, AfNOG, AusNOG, SANOG, PacNOG, LacNOG,
CaribNOG and the RIPE Routing Working Group.
Daily listings are sent to bgp-stats en lists.apnic.net
For historical data, please see http://thyme.apnic.net.
If you have any comments please contact Philip Smith <pfs en cisco.com>.
Routing Table Report 04:00 +10GMT Sat 18 Sep, 2010
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 331135
Prefixes after maximum aggregation: 152252
Deaggregation factor: 2.17
Unique aggregates announced to Internet: 162663
Total ASes present in the Internet Routing Table: 34823
Prefixes per ASN: 9.51
Origin-only ASes present in the Internet Routing Table: 30197
Origin ASes announcing only one prefix: 14661
Transit ASes present in the Internet Routing Table: 4626
Transit-only ASes present in the Internet Routing Table: 101
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 24
Max AS path prepend of ASN (41664) 21
Prefixes from unregistered ASNs in the Routing Table: 2711
Unregistered ASNs in the Routing Table: 1247
Number of 32-bit ASNs allocated by the RIRs: 777
Prefixes from 32-bit ASNs in the Routing Table: 1013
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 195
Number of addresses announced to Internet: 2269815744
Equivalent to 135 /8s, 74 /16s and 163 /24s
Percentage of available address space announced: 61.2
Percentage of allocated address space announced: 65.4
Percentage of available address space allocated: 93.7
Percentage of address space in use by end-sites: 84.8
Total number of prefixes smaller than registry allocations: 156540
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 80501
Total APNIC prefixes after maximum aggregation: 27663
APNIC Deaggregation factor: 2.91
Prefixes being announced from the APNIC address blocks: 77482
Unique aggregates announced from the APNIC address blocks: 34148
APNIC Region origin ASes present in the Internet Routing Table: 4193
APNIC Prefixes per ASN: 18.48
APNIC Region origin ASes announcing only one prefix: 1170
APNIC Region transit ASes present in the Internet Routing Table: 649
Average APNIC Region AS path length visible: 3.7
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 548634656
Equivalent to 32 /8s, 179 /16s and 128 /24s
Percentage of available APNIC address space announced: 77.9
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, 43/8, 49/8, 58/8, 59/8,
60/8, 61/8, 101/8, 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: 135830
Total ARIN prefixes after maximum aggregation: 70008
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 108483
Unique aggregates announced from the ARIN address blocks: 42882
ARIN Region origin ASes present in the Internet Routing Table: 13915
ARIN Prefixes per ASN: 7.80
ARIN Region origin ASes announcing only one prefix: 5331
ARIN Region transit ASes present in the Internet Routing Table: 1382
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 733654048
Equivalent to 43 /8s, 186 /16s and 172 /24s
Percentage of available ARIN address space announced: 62.5
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: 76004
Total RIPE prefixes after maximum aggregation: 44137
RIPE Deaggregation factor: 1.72
Prefixes being announced from the RIPE address blocks: 69440
Unique aggregates announced from the RIPE address blocks: 45491
RIPE Region origin ASes present in the Internet Routing Table: 14793
RIPE Prefixes per ASN: 4.69
RIPE Region origin ASes announcing only one prefix: 7615
RIPE Region transit ASes present in the Internet Routing Table: 2223
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 24
Number of RIPE addresses announced to Internet: 439134848
Equivalent to 26 /8s, 44 /16s and 170 /24s
Percentage of available RIPE address space announced: 77.0
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, 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: 30120
Total LACNIC prefixes after maximum aggregation: 7214
LACNIC Deaggregation factor: 4.18
Prefixes being announced from the LACNIC address blocks: 28673
Unique aggregates announced from the LACNIC address blocks: 15258
LACNIC Region origin ASes present in the Internet Routing Table: 1350
LACNIC Prefixes per ASN: 21.24
LACNIC Region origin ASes announcing only one prefix: 421
LACNIC Region transit ASes present in the Internet Routing Table: 235
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 75506304
Equivalent to 4 /8s, 128 /16s and 34 /24s
Percentage of available LACNIC address space announced: 56.3
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 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: 7414
Total AfriNIC prefixes after maximum aggregation: 1892
AfriNIC Deaggregation factor: 3.92
Prefixes being announced from the AfriNIC address blocks: 5721
Unique aggregates announced from the AfriNIC address blocks: 1674
AfriNIC Region origin ASes present in the Internet Routing Table: 405
AfriNIC Prefixes per ASN: 14.13
AfriNIC Region origin ASes announcing only one prefix: 124
AfriNIC Region transit ASes present in the Internet Routing Table: 90
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 20253184
Equivalent to 1 /8s, 53 /16s and 10 /24s
Percentage of available AfriNIC address space announced: 60.4
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 1860 9436 501 Korea Telecom (KIX)
7545 1369 298 84 TPG Internet Pty Ltd
4755 1346 370 160 TATA Communications formerly
17488 1346 153 123 Hathway IP Over Cable Interne
17974 1234 298 70 PT TELEKOMUNIKASI INDONESIA
24560 1029 304 177 Bharti Airtel Ltd., Telemedia
9583 1016 76 490 Sify Limited
4808 931 1713 260 CNCGROUP IP network: China169
18101 879 99 131 Reliance Infocom Ltd Internet
9829 821 691 36 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 3792 3667 278 bellsouth.net, inc.
4323 2702 1107 390 Time Warner Telecom
19262 1816 4668 286 Verizon Global Networks
1785 1793 698 131 PaeTec Communications, Inc.
20115 1494 1529 653 Charter Communications
7018 1459 5732 946 AT&T WorldNet Services
6478 1341 274 132 AT&T Worldnet Services
2386 1293 554 911 AT&T Data Communications Serv
11492 1194 228 89 Cable One
22773 1193 2858 61 Cox Communications, Inc.
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
3292 448 2026 389 TDC Tele Danmark
30890 439 99 209 Evolva Telecom
702 409 1869 323 UUNET - Commercial IP service
8866 403 117 19 Bulgarian Telecommunication C
8551 402 353 46 Bezeq International
3301 376 1672 331 TeliaNet Sweden
34984 374 90 185 BILISIM TELEKOM
3320 371 7328 323 Deutsche Telekom AG
12479 360 576 5 Uni2 Autonomous System
31148 338 18 79 FreeNet ISP
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 1381 2655 343 UniNet S.A. de C.V.
10620 1319 247 148 TVCABLE BOGOTA
28573 1095 866 109 NET Servicos de Comunicao S.A
7303 794 408 101 Telecom Argentina Stet-France
6503 772 193 277 AVANTEL, S.A.
14420 578 37 74 CORPORACION NACIONAL DE TELEC
22047 559 310 15 VTR PUNTO NET S.A.
3816 480 209 94 Empresa Nacional de Telecomun
7738 477 922 30 Telecomunicacoes da Bahia S.A
11172 444 99 76 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 1152 445 10 TEDATA
24863 728 147 39 LINKdotNET AS number
36992 661 279 176 Etisalat MISR
3741 266 906 224 The Internet Solution
6713 203 199 12 Itissalat Al-MAGHRIB
29571 200 19 11 Ci Telecom Autonomous system
2018 197 277 64 Tertiary Education Network
33776 196 12 14 Starcomms Nigeria Limited
24835 165 78 9 RAYA Telecom - Egypt
16637 155 440 93 MTN Network Solutions
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 3792 3667 278 bellsouth.net, inc.
4323 2702 1107 390 Time Warner Telecom
4766 1860 9436 501 Korea Telecom (KIX)
19262 1816 4668 286 Verizon Global Networks
1785 1793 698 131 PaeTec Communications, Inc.
20115 1494 1529 653 Charter Communications
7018 1459 5732 946 AT&T WorldNet Services
8151 1381 2655 343 UniNet S.A. de C.V.
7545 1369 298 84 TPG Internet Pty Ltd
4755 1346 370 160 TATA Communications formerly
Complete listing at http://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 2702 2312 Time Warner Telecom
1785 1793 1662 PaeTec Communications, Inc.
19262 1816 1530 Verizon Global Networks
4766 1860 1359 Korea Telecom (KIX)
7545 1369 1285 TPG Internet Pty Ltd
17488 1346 1223 Hathway IP Over Cable Interne
6478 1341 1209 AT&T Worldnet Services
4755 1346 1186 TATA Communications formerly
10620 1319 1171 TVCABLE BOGOTA
17974 1234 1164 PT TELEKOMUNIKASI INDONESIA
Complete listing at http://thyme.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
11946 UNALLOCATED 8.12.155.0/24 40913 Quality Technology S
33084 UNALLOCATED 8.15.195.0/24 3356 Level 3 Communicatio
18826 UNALLOCATED 8.17.208.0/20 2828 XO Communications
16734 UNALLOCATED 8.18.204.0/24 26914 Global Netoptex, Inc
53562 UNALLOCATED 8.19.94.0/24 3356 Level 3 Communicatio
22015 UNALLOCATED 8.22.137.0/24 14989 Broadview Networks
46856 UNALLOCATED 8.22.184.0/22 3356 Level 3 Communicatio
21893 UNALLOCATED 8.26.33.0/24 3356 Level 3 Communicatio
26169 UNALLOCATED 8.225.177.0/24 20225 TelJet
32249 UNALLOCATED 8.225.178.0/24 3356 Level 3 Communicatio
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
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.196.0/24 36990 Alkan Telecom Ltd
41.223.197.0/24 36990 Alkan Telecom Ltd
41.223.198.0/24 36990 Alkan Telecom Ltd
41.223.199.0/24 36990 Alkan Telecom Ltd
46.45.128.0/21 42926 RIPE Network Coordination Cen
46.45.136.0/21 42926 RIPE Network Coordination Cen
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 /10:25 /11:67 /12:201
/13:419 /14:730 /15:1320 /16:11275 /17:5437 /18:9283
/19:18511 /20:23458 /21:23639 /22:30953 /23:30252 /24:172587
/25:1015 /26:1124 /27:583 /28:167 /29:47 /30:6
/31:0 /32:7
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2418 3792 bellsouth.net, inc.
4766 1477 1860 Korea Telecom (KIX)
4323 1367 2702 Time Warner Telecom
1785 1256 1793 PaeTec Communications, Inc.
10620 1207 1319 TVCABLE BOGOTA
11492 1096 1194 Cable One
17488 1087 1346 Hathway IP Over Cable Interne
18566 1068 1087 Covad Communications
8452 1044 1152 TEDATA
24560 930 1029 Bharti Airtel Ltd., Telemedia
Complete listing at http://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:71 2:11 4:13 8:307 12:2012 13:8
14:4 15:20 16:3 17:9 20:8 24:1393
27:339 31:1 32:61 33:12 38:701 40:97
41:2526 44:3 46:72 47:13 49:1 52:12
55:6 56:2 57:29 58:827 59:497 60:474
61:1081 62:1020 63:1968 64:3722 65:2300 66:3998
67:1862 68:1136 69:2797 70:739 71:372 72:1948
73:2 74:2326 75:284 76:329 77:906 78:647
79:414 80:1011 81:781 82:496 83:445 84:680
85:1036 86:432 87:682 88:324 89:1562 90:96
91:3044 92:426 93:992 94:1419 95:705 96:380
97:219 98:623 99:34 101:1 108:64 109:667
110:502 111:580 112:298 113:291 114:453 115:587
116:1098 117:658 118:510 119:869 120:137 121:703
122:1541 123:918 124:1221 125:1242 128:226 129:157
130:170 131:541 132:258 133:20 134:201 135:46
136:223 137:138 138:273 139:109 140:479 141:197
142:345 143:353 144:475 145:54 146:428 147:169
148:630 149:294 150:152 151:233 152:288 153:170
154:3 155:365 156:169 157:335 158:112 159:359
160:313 161:190 162:268 163:167 164:418 165:370
166:468 167:413 168:666 169:156 170:727 171:61
172:2 173:1078 174:500 175:169 176:1 177:1
178:483 180:648 181:1 182:211 183:254 184:156
186:644 187:479 188:809 189:811 190:4139 192:5775
193:4736 194:3435 195:2798 196:1188 198:3557 199:3579
200:5398 201:1578 202:8098 203:8290 204:3996 205:2383
206:2537 207:3065 208:3868 209:3469 210:2560 211:1307
212:1742 213:1684 214:673 215:66 216:4753 217:1573
218:473 219:398 220:1176 221:386 222:316 223:45
End of report
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