[SANOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Mar 29 18:33:27 UTC 2013
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,
TRNOG, 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 30 Mar, 2013
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 447475
Prefixes after maximum aggregation: 183552
Deaggregation factor: 2.44
Unique aggregates announced to Internet: 220877
Total ASes present in the Internet Routing Table: 43648
Prefixes per ASN: 10.25
Origin-only ASes present in the Internet Routing Table: 34351
Origin ASes announcing only one prefix: 16022
Transit ASes present in the Internet Routing Table: 5791
Transit-only ASes present in the Internet Routing Table: 140
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 32
Max AS path prepend of ASN ( 28730) 25
Prefixes from unregistered ASNs in the Routing Table: 384
Unregistered ASNs in the Routing Table: 137
Number of 32-bit ASNs allocated by the RIRs: 4661
Number of 32-bit ASNs visible in the Routing Table: 3506
Prefixes from 32-bit ASNs in the Routing Table: 10199
Special use prefixes present in the Routing Table: 16
Prefixes being announced from unallocated address space: 208
Number of addresses announced to Internet: 2624177100
Equivalent to 156 /8s, 105 /16s and 195 /24s
Percentage of available address space announced: 70.9
Percentage of allocated address space announced: 70.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 94.4
Total number of prefixes smaller than registry allocations: 158321
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 107311
Total APNIC prefixes after maximum aggregation: 33191
APNIC Deaggregation factor: 3.23
Prefixes being announced from the APNIC address blocks: 108485
Unique aggregates announced from the APNIC address blocks: 44275
APNIC Region origin ASes present in the Internet Routing Table: 4812
APNIC Prefixes per ASN: 22.54
APNIC Region origin ASes announcing only one prefix: 1227
APNIC Region transit ASes present in the Internet Routing Table: 817
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 23
Number of APNIC region 32-bit ASNs visible in the Routing Table: 473
Number of APNIC addresses announced to Internet: 719971904
Equivalent to 42 /8s, 233 /16s and 230 /24s
Percentage of available APNIC address space announced: 84.1
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-133119
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, 150/8, 153/8,
163/8, 171/8, 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: 157280
Total ARIN prefixes after maximum aggregation: 79283
ARIN Deaggregation factor: 1.98
Prefixes being announced from the ARIN address blocks: 157969
Unique aggregates announced from the ARIN address blocks: 72182
ARIN Region origin ASes present in the Internet Routing Table: 15575
ARIN Prefixes per ASN: 10.14
ARIN Region origin ASes announcing only one prefix: 5914
ARIN Region transit ASes present in the Internet Routing Table: 1617
Average ARIN Region AS path length visible: 4.1
Max ARIN Region AS path length visible: 27
Number of ARIN region 32-bit ASNs visible in the Routing Table: 18
Number of ARIN addresses announced to Internet: 1079709056
Equivalent to 64 /8s, 91 /16s and 13 /24s
Percentage of available ARIN address space announced: 57.1
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, 128/8,
129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8,
137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8,
146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8,
157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8,
165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8,
173/8, 174/8, 184/8, 192/8, 198/8, 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: 115077
Total RIPE prefixes after maximum aggregation: 59200
RIPE Deaggregation factor: 1.94
Prefixes being announced from the RIPE address blocks: 118791
Unique aggregates announced from the RIPE address blocks: 76668
RIPE Region origin ASes present in the Internet Routing Table: 17110
RIPE Prefixes per ASN: 6.94
RIPE Region origin ASes announcing only one prefix: 8143
RIPE Region transit ASes present in the Internet Routing Table: 2794
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 32
Number of RIPE region 32-bit ASNs visible in the Routing Table: 2256
Number of RIPE addresses announced to Internet: 654721764
Equivalent to 39 /8s, 6 /16s and 66 /24s
Percentage of available RIPE address space announced: 95.2
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
59392-61439, 196608-199679
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,
141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
193/8, 194/8, 195/8, 212/8, 213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 47583
Total LACNIC prefixes after maximum aggregation: 9393
LACNIC Deaggregation factor: 5.07
Prefixes being announced from the LACNIC address blocks: 51566
Unique aggregates announced from the LACNIC address blocks: 23883
LACNIC Region origin ASes present in the Internet Routing Table: 1875
LACNIC Prefixes per ASN: 27.50
LACNIC Region origin ASes announcing only one prefix: 555
LACNIC Region transit ASes present in the Internet Routing Table: 348
Average LACNIC Region AS path length visible: 4.8
Max LACNIC Region AS path length visible: 29
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 753
Number of LACNIC addresses announced to Internet: 125351976
Equivalent to 7 /8s, 120 /16s and 184 /24s
Percentage of available LACNIC address space announced: 74.7
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,
191/8, 200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 9887
Total AfriNIC prefixes after maximum aggregation: 2435
AfriNIC Deaggregation factor: 4.06
Prefixes being announced from the AfriNIC address blocks: 10456
Unique aggregates announced from the AfriNIC address blocks: 3677
AfriNIC Region origin ASes present in the Internet Routing Table: 601
AfriNIC Prefixes per ASN: 17.40
AfriNIC Region origin ASes announcing only one prefix: 183
AfriNIC Region transit ASes present in the Internet Routing Table: 131
Average AfriNIC Region AS path length visible: 4.8
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 6
Number of AfriNIC addresses announced to Internet: 44065536
Equivalent to 2 /8s, 160 /16s and 99 /24s
Percentage of available AfriNIC address space announced: 43.8
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 2950 11558 922 Korea Telecom (KIX)
17974 2507 840 86 PT TELEKOMUNIKASI INDONESIA
7545 1850 301 90 TPG Internet Pty Ltd
4755 1723 392 198 TATA Communications formerly
9829 1482 1189 43 BSNL National Internet Backbo
9583 1211 91 497 Sify Limited
7552 1171 1066 12 Vietel Corporation
4808 1122 2109 326 CNCGROUP IP network: China169
9498 1060 310 73 BHARTI Airtel Ltd.
24560 1056 385 169 Bharti Airtel Ltd., Telemedia
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 3032 3694 87 bellsouth.net, inc.
7029 2194 1266 213 Windstream Communications Inc
18566 2070 382 185 Covad Communications
22773 2006 2929 125 Cox Communications, Inc.
1785 1973 677 125 PaeTec Communications, Inc.
20115 1669 1610 613 Charter Communications
4323 1605 1138 396 Time Warner Telecom
30036 1322 291 666 Mediacom Communications Corp
7018 1311 10805 851 AT&T WorldNet Services
11492 1215 223 328 Cable One
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
8402 1851 544 16 Corbina telecom
34984 1121 234 207 BILISIM TELEKOM
2118 1116 97 13 EUnet/RELCOM Autonomous Syste
12479 843 786 66 Uni2 Autonomous System
13188 837 99 33 Educational Network
20940 794 276 632 Akamai Technologies European
31148 786 41 19 FreeNet ISP
8551 717 370 43 Bezeq International
6830 715 2314 436 UPC Distribution Services
58113 666 74 386 LIR DATACENTER TELECOM SRL
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
28573 2489 1346 92 NET Servicos de Comunicao S.A
10620 2360 407 236 TVCABLE BOGOTA
7303 1673 1152 210 Telecom Argentina Stet-France
8151 1360 2674 402 UniNet S.A. de C.V.
6503 1186 435 68 AVANTEL, S.A.
14754 941 127 87 Telgua S. A.
18881 841 716 18 Global Village Telecom
27947 803 87 94 Telconet S.A
11830 725 364 14 Instituto Costarricense de El
3816 692 306 85 Empresa Nacional de Telecomun
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
36998 1137 80 4 MOBITEL
24863 666 274 33 LINKdotNET AS number
6713 536 615 23 Itissalat Al-MAGHRIB
8452 346 446 12 TEDATA
24835 275 80 8 RAYA Telecom - Egypt
3741 262 906 220 The Internet Solution
12258 193 28 67 Vodacom Internet Company
29975 191 667 21 Vodacom
16637 189 698 88 MTN Network Solutions
33776 182 12 19 Starcomms Nigeria Limited
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 3032 3694 87 bellsouth.net, inc.
4766 2950 11558 922 Korea Telecom (KIX)
17974 2507 840 86 PT TELEKOMUNIKASI INDONESIA
28573 2489 1346 92 NET Servicos de Comunicao S.A
10620 2360 407 236 TVCABLE BOGOTA
7029 2194 1266 213 Windstream Communications Inc
18566 2070 382 185 Covad Communications
22773 2006 2929 125 Cox Communications, Inc.
1785 1973 677 125 PaeTec Communications, Inc.
8402 1851 544 16 Corbina telecom
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 2507 2421 PT TELEKOMUNIKASI INDONESIA
28573 2489 2397 NET Servicos de Comunicao S.A
10620 2360 2124 TVCABLE BOGOTA
4766 2950 2028 Korea Telecom (KIX)
7029 2194 1981 Windstream Communications Inc
18566 2070 1885 Covad Communications
22773 2006 1881 Cox Communications, Inc.
1785 1973 1848 PaeTec Communications, Inc.
8402 1851 1835 Corbina telecom
7545 1850 1760 TPG Internet Pty Ltd
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
30031 UNALLOCATED 12.27.122.0/24 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
17300 UNALLOCATED 12.45.103.0/24 209 Qwest
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic
14764 UNALLOCATED 12.108.237.0/24 7018 AT&T WorldNet Servic
33649 UNALLOCATED 12.111.112.0/24 19029 New Edge Networks
26064 UNALLOCATED 12.149.37.0/24 7018 AT&T WorldNet Servic
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
128.0.0.0/24 2876 Jump Management SRL
128.0.16.0/21 43568 RIPE Network Coordination Cen
128.0.24.0/21 41794 Altline LLC
128.0.72.0/21 23456 32-bit ASN transition
128.0.80.0/20 52041 Timer LTD
128.0.96.0/21 12886 LEWTelNet GmbH
128.0.104.0/23 51848 FOP Gabidullina Ludmila Nikol
128.0.106.0/24 23456 32-bit ASN transition
128.0.128.0/20 29285 AMT closed joint-stock compan
128.0.144.0/22 59675 mywire Datentechnik GmbH
Complete listing at http://thyme.rand.apnic.net/current/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
41.222.80.0/21 37110 Moztel LDA
62.12.96.0/19 38478 SunnyVision Limited
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
64.185.224.0/24 27431 JTL Networks Inc.
64.185.225.0/24 27431 JTL Networks Inc.
64.185.226.0/24 27431 JTL Networks Inc.
64.185.227.0/24 27431 JTL Networks Inc.
64.185.228.0/24 27431 JTL Networks Inc.
64.185.229.0/24 27431 JTL Networks Inc.
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 /8:17 /9:13 /10:29 /11:87 /12:248
/13:483 /14:876 /15:1560 /16:12662 /17:6610 /18:10882
/19:21746 /20:31815 /21:33548 /22:46213 /23:41548 /24:234827
/25:1390 /26:1780 /27:863 /28:178 /29:63 /30:18
/31:0 /32:19
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 2020 2070 Covad Communications
6389 1742 3032 bellsouth.net, inc.
7029 1597 2194 Windstream Communications Inc
8402 1544 1851 Corbina telecom
22773 1315 2006 Cox Communications, Inc.
30036 1203 1322 Mediacom Communications Corp
11492 1177 1215 Cable One
36998 1131 1137 MOBITEL
1785 1044 1973 PaeTec Communications, Inc.
7011 931 1175 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:741 2:792 3:3 4:13 5:834 6:3
8:513 12:1920 13:3 14:764 15:11 16:3
17:8 20:19 23:245 24:1801 27:1445 31:1179
32:44 33:2 34:5 36:43 37:1696 38:861
39:2 40:160 41:2591 42:183 44:6 46:1763
47:2 49:613 50:671 52:12 54:28 55:11
57:27 58:1106 59:564 60:296 61:1381 62:983
63:2038 64:4292 65:2177 66:4285 67:2061 68:1115
69:3273 70:874 71:526 72:1899 74:2555 75:402
76:293 77:1089 78:1020 79:580 80:1251 81:974
82:610 83:579 84:555 85:1151 86:469 87:948
88:512 89:1786 90:262 91:5449 92:608 93:1690
94:1866 95:1524 96:499 97:340 98:1049 99:41
100:29 101:311 103:2325 105:488 106:135 107:207
108:514 109:1803 110:876 111:1043 112:499 113:767
114:684 115:960 116:869 117:798 118:1003 119:1265
120:382 121:716 122:1738 123:1194 124:1326 125:1315
128:640 129:222 130:331 131:655 132:332 133:145
134:258 135:62 136:220 137:244 138:343 139:181
140:197 141:313 142:542 143:366 144:483 145:90
146:524 147:363 148:698 149:356 150:162 151:532
152:415 153:194 154:34 155:384 156:251 157:391
158:271 159:711 160:334 161:424 162:375 163:202
164:572 165:451 166:371 167:575 168:1016 169:132
170:1021 171:172 172:4 173:1578 174:583 175:436
176:1135 177:1868 178:1971 179:1 180:1385 181:300
182:1037 183:355 184:662 185:324 186:2401 187:1245
188:1905 189:1403 190:6687 192:6457 193:5674 194:4521
195:3467 196:1300 197:765 198:4278 199:5281 200:5994
201:2362 202:8876 203:8751 204:4487 205:2547 206:2791
207:2831 208:4063 209:3540 210:2916 211:1566 212:1995
213:1931 214:928 215:94 216:5198 217:1579 218:605
219:330 220:1270 221:544 222:319 223:496
End of report
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