[lacnog] Weekly Routing Table Report
Routing Analysis Role Account
cscora en apnic.net
Vie Oct 22 16:51:43 BRST 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.rand.apnic.net.
If you have any comments please contact Philip Smith <pfs en cisco.com>.
Routing Table Report 04:00 +10GMT Sat 23 Oct, 2010
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 334429
Prefixes after maximum aggregation: 152752
Deaggregation factor: 2.19
Unique aggregates announced to Internet: 164630
Total ASes present in the Internet Routing Table: 35103
Prefixes per ASN: 9.53
Origin-only ASes present in the Internet Routing Table: 30270
Origin ASes announcing only one prefix: 14793
Transit ASes present in the Internet Routing Table: 4833
Transit-only ASes present in the Internet Routing Table: 122
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 31
Max AS path prepend of ASN (36992) 29
Prefixes from unregistered ASNs in the Routing Table: 309
Unregistered ASNs in the Routing Table: 130
Number of 32-bit ASNs allocated by the RIRs: 829
Prefixes from 32-bit ASNs in the Routing Table: 0
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 196
Number of addresses announced to Internet: 2290781856
Equivalent to 136 /8s, 138 /16s and 142 /24s
Percentage of available address space announced: 61.8
Percentage of allocated address space announced: 65.4
Percentage of available address space allocated: 94.6
Percentage of address space in use by end-sites: 85.3
Total number of prefixes smaller than registry allocations: 137383
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 81988
Total APNIC prefixes after maximum aggregation: 27957
APNIC Deaggregation factor: 2.93
Prefixes being announced from the APNIC address blocks: 78894
Unique aggregates announced from the APNIC address blocks: 34579
APNIC Region origin ASes present in the Internet Routing Table: 4218
APNIC Prefixes per ASN: 18.70
APNIC Region origin ASes announcing only one prefix: 1178
APNIC Region transit ASes present in the Internet Routing Table: 675
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 560261152
Equivalent to 33 /8s, 100 /16s and 232 /24s
Percentage of available APNIC address space announced: 75.9
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, 42/8, 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: 137432
Total ARIN prefixes after maximum aggregation: 71024
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 108852
Unique aggregates announced from the ARIN address blocks: 43520
ARIN Region origin ASes present in the Internet Routing Table: 13992
ARIN Prefixes per ASN: 7.78
ARIN Region origin ASes announcing only one prefix: 5369
ARIN Region transit ASes present in the Internet Routing Table: 1478
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 737933824
Equivalent to 43 /8s, 251 /16s and 250 /24s
Percentage of available ARIN address space announced: 62.8
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, 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: 76974
Total RIPE prefixes after maximum aggregation: 44606
RIPE Deaggregation factor: 1.73
Prefixes being announced from the RIPE address blocks: 70398
Unique aggregates announced from the RIPE address blocks: 46166
RIPE Region origin ASes present in the Internet Routing Table: 14926
RIPE Prefixes per ASN: 4.72
RIPE Region origin ASes announcing only one prefix: 7695
RIPE Region transit ASes present in the Internet Routing Table: 2306
Average RIPE Region AS path length visible: 4.4
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 442325120
Equivalent to 26 /8s, 93 /16s and 88 /24s
Percentage of available RIPE address space announced: 77.5
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: 30290
Total LACNIC prefixes after maximum aggregation: 7185
LACNIC Deaggregation factor: 4.22
Prefixes being announced from the LACNIC address blocks: 28964
Unique aggregates announced from the LACNIC address blocks: 15428
LACNIC Region origin ASes present in the Internet Routing Table: 1371
LACNIC Prefixes per ASN: 21.13
LACNIC Region origin ASes announcing only one prefix: 427
LACNIC Region transit ASes present in the Internet Routing Table: 238
Average LACNIC Region AS path length visible: 4.3
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 76358016
Equivalent to 4 /8s, 141 /16s and 33 /24s
Percentage of available LACNIC address space announced: 56.9
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: 7519
Total AfriNIC prefixes after maximum aggregation: 1866
AfriNIC Deaggregation factor: 4.03
Prefixes being announced from the AfriNIC address blocks: 5824
Unique aggregates announced from the AfriNIC address blocks: 1725
AfriNIC Region origin ASes present in the Internet Routing Table: 410
AfriNIC Prefixes per ASN: 14.20
AfriNIC Region origin ASes announcing only one prefix: 124
AfriNIC Region transit ASes present in the Internet Routing Table: 91
Average AfriNIC Region AS path length visible: 5.2
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 20921088
Equivalent to 1 /8s, 63 /16s and 59 /24s
Percentage of available AfriNIC address space announced: 62.3
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 1875 9453 513 Korea Telecom (KIX)
7545 1417 299 78 TPG Internet Pty Ltd
4755 1373 382 158 TATA Communications formerly
17488 1364 156 121 Hathway IP Over Cable Interne
17974 1274 304 79 PT TELEKOMUNIKASI INDONESIA
24560 1051 309 180 Bharti Airtel Ltd., Telemedia
9583 1030 76 493 Sify Limited
4808 977 1722 266 CNCGROUP IP network: China169
18101 892 116 134 Reliance Infocom Ltd Internet
9829 827 694 27 BSNL National Internet Backbo
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 3765 3667 278 bellsouth.net, inc.
4323 2621 1103 394 Time Warner Telecom
1785 1794 698 130 PaeTec Communications, Inc.
19262 1777 4833 279 Verizon Global Networks
20115 1506 1528 647 Charter Communications
7018 1437 5692 920 AT&T WorldNet Services
6478 1387 279 98 AT&T Worldnet Services
2386 1311 556 927 AT&T Data Communications Serv
11492 1236 231 74 Cable One
22773 1207 2859 62 Cox 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
3292 444 2027 389 TDC Tele Danmark
8866 420 133 25 Bulgarian Telecommunication C
8551 402 353 46 Bezeq International
702 397 1866 311 UUNET - Commercial IP service
34984 381 91 188 BILISIM TELEKOM
3301 379 1688 335 TeliaNet Sweden
3320 377 7332 330 Deutsche Telekom AG
30890 376 80 205 Evolva Telecom
12479 364 576 5 Uni2 Autonomous System
31148 359 19 79 FreeNet ISP
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 1332 247 150 TVCABLE BOGOTA
8151 1327 2597 363 UniNet S.A. de C.V.
28573 1220 920 84 NET Servicos de Comunicao S.A
7303 831 441 107 Telecom Argentina Stet-France
6503 785 223 258 AVANTEL, S.A.
22047 564 310 15 VTR PUNTO NET S.A.
14420 545 39 76 CORPORACION NACIONAL DE TELEC
3816 484 210 95 Empresa Nacional de Telecomun
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 448 32 27 Telefonica del Sur 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
8452 1060 445 10 TEDATA
24863 742 147 39 LINKdotNET AS number
36992 639 278 159 Etisalat MISR
3741 268 907 225 The Internet Solution
24835 210 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
29571 203 19 11 Ci Telecom Autonomous system
2018 197 277 64 Tertiary Education Network
33776 196 12 14 Starcomms Nigeria Limited
16637 154 440 91 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 3765 3667 278 bellsouth.net, inc.
4323 2621 1103 394 Time Warner Telecom
4766 1875 9453 513 Korea Telecom (KIX)
1785 1794 698 130 PaeTec Communications, Inc.
19262 1777 4833 279 Verizon Global Networks
20115 1506 1528 647 Charter Communications
7018 1437 5692 920 AT&T WorldNet Services
7545 1417 299 78 TPG Internet Pty Ltd
6478 1387 279 98 AT&T Worldnet Services
4755 1373 382 158 TATA Communications formerly
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 2621 2227 Time Warner Telecom
1785 1794 1664 PaeTec Communications, Inc.
19262 1777 1498 Verizon Global Networks
4766 1875 1362 Korea Telecom (KIX)
7545 1417 1339 TPG Internet Pty Ltd
6478 1387 1289 AT&T Worldnet Services
17488 1364 1243 Hathway IP Over Cable Interne
4755 1373 1215 TATA Communications formerly
17974 1274 1195 PT TELEKOMUNIKASI INDONESIA
10620 1332 1182 TVCABLE BOGOTA
Complete listing at http://thyme.rand.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 4323 Time Warner Telecom
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic
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
Complete listing at http://thyme.rand.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<<
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
64.21.192.0/20 11610 Internet Nebraska Corporation
64.21.212.0/22 11610 Internet Nebraska Corporation
64.21.216.0/21 11610 Internet Nebraska Corporation
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 /9:10 /10:25 /11:68 /12:207
/13:420 /14:744 /15:1345 /16:11370 /17:5497 /18:9345
/19:18553 /20:23802 /21:23849 /22:31438 /23:30643 /24:174207
/25:999 /26:1129 /27:583 /28:155 /29:12 /30:2
/31:0 /32:7
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2330 3765 bellsouth.net, inc.
4323 1410 2621 Time Warner Telecom
6478 1349 1387 AT&T Worldnet Services
10620 1220 1332 TVCABLE BOGOTA
11492 1193 1236 Cable One
1785 1077 1794 PaeTec Communications, Inc.
18566 1069 1088 Covad Communications
7011 1058 1159 Citizens Utilities
8452 967 1060 TEDATA
19262 903 1777 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:87 2:12 4:13 8:313 12:2010 13:8
14:44 15:20 16:3 17:9 20:9 24:1386
27:383 31:1 32:61 33:12 38:696 40:97
41:2563 44:3 46:164 47:10 49:4 50:1
52:12 55:5 56:2 57:31 58:837 59:498
60:480 61:1112 62:1012 63:1964 64:3748 65:2344
66:4066 67:1819 68:1139 69:2850 70:757 71:376
72:1937 73:2 74:2334 75:295 76:326 77:868
78:691 79:445 80:1047 81:805 82:499 83:453
84:690 85:1020 86:433 87:694 88:326 89:1569
90:110 91:3125 92:431 93:1019 94:1110 95:700
96:395 97:222 98:628 99:33 101:3 108:64
109:708 110:434 111:608 112:305 113:305 114:483
115:607 116:1137 117:662 118:541 119:983 120:164
121:720 122:1596 123:917 124:1226 125:1270 128:228
129:152 130:167 131:566 132:275 133:20 134:207
135:46 136:212 137:139 138:280 139:109 140:479
141:198 142:347 143:383 144:498 145:55 146:432
147:174 148:621 149:308 150:146 151:231 152:293
153:175 154:3 155:369 156:166 157:334 158:112
159:361 160:313 161:198 162:271 163:166 164:424
165:349 166:469 167:424 168:683 169:154 170:718
171:61 172:2 173:1042 174:496 175:241 176:1
177:1 178:542 180:682 181:1 182:240 183:236
184:131 186:740 187:541 188:850 189:804 190:4189
192:5761 193:4752 194:3434 195:2826 196:1199 198:3542
199:3632 200:5419 201:1575 202:8158 203:8282 204:4008
205:2316 206:2566 207:3028 208:3907 209:3476 210:2559
211:1281 212:1798 213:1719 214:686 215:66 216:4769
217:1558 218:521 219:401 220:1182 221:429 222:343
223:58
End of report
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