[afnog] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Sep 2 19:10:00 UTC 2011
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 at lists.apnic.net
For historical data, please see http://thyme.rand.apnic.net.
If you have any comments please contact Philip Smith <pfsinoz at gmail.com>.
Routing Table Report 04:00 +10GMT Sat 03 Sep, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 370062
Prefixes after maximum aggregation: 167213
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 183305
Total ASes present in the Internet Routing Table: 38662
Prefixes per ASN: 9.57
Origin-only ASes present in the Internet Routing Table: 32065
Origin ASes announcing only one prefix: 15405
Transit ASes present in the Internet Routing Table: 5220
Transit-only ASes present in the Internet Routing Table: 139
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 36
Max AS path prepend of ASN (22394) 33
Prefixes from unregistered ASNs in the Routing Table: 1179
Unregistered ASNs in the Routing Table: 675
Number of 32-bit ASNs allocated by the RIRs: 1700
Number of 32-bit ASNs visible in the Routing Table: 1377
Prefixes from 32-bit ASNs in the Routing Table: 3177
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 110
Number of addresses announced to Internet: 2472185408
Equivalent to 147 /8s, 90 /16s and 142 /24s
Percentage of available address space announced: 66.7
Percentage of allocated address space announced: 66.7
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.2
Total number of prefixes smaller than registry allocations: 154267
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93241
Total APNIC prefixes after maximum aggregation: 30588
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 89767
Unique aggregates announced from the APNIC address blocks: 38038
APNIC Region origin ASes present in the Internet Routing Table: 4545
APNIC Prefixes per ASN: 19.75
APNIC Region origin ASes announcing only one prefix: 1248
APNIC Region transit ASes present in the Internet Routing Table: 709
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: 79
Number of APNIC addresses announced to Internet: 625813024
Equivalent to 37 /8s, 77 /16s and 38 /24s
Percentage of available APNIC address space announced: 79.4
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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: 142899
Total ARIN prefixes after maximum aggregation: 73449
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 114823
Unique aggregates announced from the ARIN address blocks: 47244
ARIN Region origin ASes present in the Internet Routing Table: 14626
ARIN Prefixes per ASN: 7.85
ARIN Region origin ASes announcing only one prefix: 5626
ARIN Region transit ASes present in the Internet Routing Table: 1551
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 36
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 804272128
Equivalent to 47 /8s, 240 /16s and 56 /24s
Percentage of available ARIN address space announced: 63.9
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: 87977
Total RIPE prefixes after maximum aggregation: 49929
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 81096
Unique aggregates announced from the RIPE address blocks: 53651
RIPE Region origin ASes present in the Internet Routing Table: 15930
RIPE Prefixes per ASN: 5.09
RIPE Region origin ASes announcing only one prefix: 7931
RIPE Region transit ASes present in the Internet Routing Table: 2507
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: 981
Number of RIPE addresses announced to Internet: 488374784
Equivalent to 29 /8s, 28 /16s and 2 /24s
Percentage of available RIPE address space announced: 78.7
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, 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: 34284
Total LACNIC prefixes after maximum aggregation: 7721
LACNIC Deaggregation factor: 4.44
Prefixes being announced from the LACNIC address blocks: 33570
Unique aggregates announced from the LACNIC address blocks: 17498
LACNIC Region origin ASes present in the Internet Routing Table: 1514
LACNIC Prefixes per ASN: 22.17
LACNIC Region origin ASes announcing only one prefix: 447
LACNIC Region transit ASes present in the Internet Routing Table: 279
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 301
Number of LACNIC addresses announced to Internet: 87749504
Equivalent to 5 /8s, 58 /16s and 243 /24s
Percentage of available LACNIC address space announced: 58.1
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: 8317
Total AfriNIC prefixes after maximum aggregation: 2022
AfriNIC Deaggregation factor: 4.11
Prefixes being announced from the AfriNIC address blocks: 6417
Unique aggregates announced from the AfriNIC address blocks: 2012
AfriNIC Region origin ASes present in the Internet Routing Table: 483
AfriNIC Prefixes per ASN: 13.29
AfriNIC Region origin ASes announcing only one prefix: 153
AfriNIC Region transit ASes present in the Internet Routing Table: 104
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 26801152
Equivalent to 1 /8s, 152 /16s and 244 /24s
Percentage of available AfriNIC address space announced: 39.9
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 2508 11047 954 Korea Telecom (KIX)
17974 1949 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1577 301 83 TPG Internet Pty Ltd
4755 1538 635 169 TATA Communications formerly
24560 1195 337 187 Bharti Airtel Ltd., Telemedia
9829 1151 989 28 BSNL National Internet Backbo
4808 1073 2092 305 CNCGROUP IP network: China169
9583 1073 79 503 Sify Limited
17488 1031 192 150 Hathway IP Over Cable Interne
7552 991 1062 11 Vietel Corporation
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 3564 3817 227 bellsouth.net, inc.
18566 1913 365 238 Covad Communications
1785 1822 680 122 PaeTec Communications, Inc.
4323 1624 1085 396 Time Warner Telecom
20115 1590 1540 633 Charter Communications
7029 1581 995 230 Windstream Communications Inc
22773 1452 2906 99 Cox Communications, Inc.
19262 1393 4716 399 Verizon Global Networks
7018 1341 7051 877 AT&T WorldNet Services
2386 1222 515 880 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 541 107 182 BILISIM TELEKOM
6830 523 1811 321 UPC Distribution Services
20940 490 148 383 Akamai Technologies European
3292 470 2079 404 TDC Tele Danmark
12479 466 593 7 Uni2 Autonomous System
8866 459 133 26 Bulgarian Telecommunication C
3320 430 8152 374 Deutsche Telekom AG
29049 424 31 55 AzerSat LLC.
8402 404 352 13 Corbina telecom
8551 404 354 44 Bezeq International
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 1628 298 154 TVCABLE BOGOTA
8151 1405 2775 351 UniNet S.A. de C.V.
28573 1283 1003 71 NET Servicos de Comunicao S.A
7303 1058 578 170 Telecom Argentina Stet-France
14420 715 57 88 CORPORACION NACIONAL DE TELEC
6503 591 450 68 AVANTEL, S.A.
22047 579 322 17 VTR PUNTO NET S.A.
27947 561 55 82 Telconet S.A
3816 531 232 96 Empresa Nacional de Telecomun
7738 515 986 31 Telecomunicacoes da Bahia 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 809 147 43 LINKdotNET AS number
8452 625 445 11 TEDATA
15475 512 74 8 Nile Online
36992 302 415 14 Etisalat MISR
3741 266 937 227 The Internet Solution
6713 242 519 14 Itissalat Al-MAGHRIB
15706 219 32 6 Sudatel Internet Exchange Aut
33776 207 13 14 Starcomms Nigeria Limited
12258 194 28 61 Vodacom Internet Company
24835 181 70 12 RAYA Telecom - Egypt
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 3564 3817 227 bellsouth.net, inc.
23456 3177 752 1709 32-bit ASN transition
4766 2508 11047 954 Korea Telecom (KIX)
17974 1949 516 31 PT TELEKOMUNIKASI INDONESIA
18566 1913 365 238 Covad Communications
1785 1822 680 122 PaeTec Communications, Inc.
10620 1628 298 154 TVCABLE BOGOTA
4323 1624 1085 396 Time Warner Telecom
20115 1590 1540 633 Charter Communications
7029 1581 995 230 Windstream Communications Inc
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 1949 1918 PT TELEKOMUNIKASI INDONESIA
1785 1822 1700 PaeTec Communications, Inc.
18566 1913 1675 Covad Communications
4766 2508 1554 Korea Telecom (KIX)
7545 1577 1494 TPG Internet Pty Ltd
10620 1628 1474 TVCABLE BOGOTA
23456 3177 1468 32-bit ASN transition
4755 1538 1369 TATA Communications formerly
22773 1452 1353 Cox Communications, Inc.
7029 1581 1351 Windstream 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<<
46.18.104.0/21 23456 32-bit ASN transition
50.115.0.0/20 40431 Travail Systems, LLC
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 /9:12 /10:27 /11:81 /12:233
/13:461 /14:796 /15:1410 /16:11946 /17:5944 /18:9965
/19:19636 /20:26661 /21:26765 /22:35839 /23:34555 /24:192384
/25:1117 /26:1301 /27:736 /28:165 /29:4 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2200 3564 bellsouth.net, inc.
18566 1868 1913 Covad Communications
23456 1553 3177 32-bit ASN transition
10620 1523 1628 TVCABLE BOGOTA
7029 1280 1581 Windstream Communications Inc
11492 1107 1153 Cable One
7011 1057 1182 Citizens Utilities
1785 1053 1822 PaeTec Communications, Inc.
22773 942 1452 Cox Communications, Inc.
30036 928 956 Mediacom Communications Corp
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:363 2:51 4:15 5:1 6:3 8:348
12:1950 13:1 14:529 15:13 16:3 17:5
20:10 23:31 24:1678 27:931 31:518 32:64
33:3 34:2 36:4 38:734 40:107 41:2413
42:40 44:3 46:1076 47:3 49:229 50:413
52:13 54:2 55:3 56:2 57:35 58:873
59:491 60:376 61:1172 62:1095 63:1940 64:4007
65:2307 66:3927 67:1931 68:1111 69:3129 70:781
71:375 72:1857 74:2422 75:328 76:339 77:862
78:705 79:452 80:1120 81:840 82:493 83:494
84:683 85:1083 86:497 87:860 88:338 89:1532
90:231 91:4054 92:524 93:1139 94:1382 95:879
96:416 97:271 98:924 99:37 101:203 103:250
106:79 107:41 108:75 109:1012 110:662 111:748
112:309 113:429 114:565 115:704 116:997 117:681
118:884 119:1197 120:334 121:686 122:1618 123:1003
124:1343 125:1355 128:248 129:178 130:166 131:579
132:119 133:21 134:214 135:53 136:213 137:136
138:294 139:116 140:492 141:286 142:389 143:418
144:487 145:61 146:464 147:222 148:631 149:250
150:152 151:190 152:441 153:179 154:6 155:398
156:201 157:354 158:141 159:450 160:319 161:207
162:335 163:167 164:512 165:366 166:537 167:433
168:748 169:146 170:847 171:84 172:1 173:1646
174:615 175:399 176:156 177:244 178:1019 180:1013
181:25 182:609 183:243 184:351 185:1 186:1408
187:687 188:938 189:878 190:5153 192:5927 193:5001
194:3518 195:3050 196:1237 197:144 198:3585 199:4086
200:5440 201:1567 202:8525 203:8502 204:4241 205:2329
206:2675 207:2832 208:4034 209:3433 210:2712 211:1466
212:2084 213:1764 214:776 215:76 216:4854 217:1624
218:550 219:344 220:1195 221:515 222:353 223:261
End of report
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