[SANOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Jun 15 19:05:08 UTC 2012
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 16 Jun, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 413957
Prefixes after maximum aggregation: 175177
Deaggregation factor: 2.36
Unique aggregates announced to Internet: 201673
Total ASes present in the Internet Routing Table: 41298
Prefixes per ASN: 10.02
Origin-only ASes present in the Internet Routing Table: 33296
Origin ASes announcing only one prefix: 15667
Transit ASes present in the Internet Routing Table: 5521
Transit-only ASes present in the Internet Routing Table: 139
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 28
Max AS path prepend of ASN ( 36992) 22
Prefixes from unregistered ASNs in the Routing Table: 413
Unregistered ASNs in the Routing Table: 140
Number of 32-bit ASNs allocated by the RIRs: 2842
Number of 32-bit ASNs visible in the Routing Table: 2481
Prefixes from 32-bit ASNs in the Routing Table: 6297
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 331
Number of addresses announced to Internet: 2566262828
Equivalent to 152 /8s, 246 /16s and 16 /24s
Percentage of available address space announced: 69.2
Percentage of allocated address space announced: 69.3
Percentage of available address space allocated: 99.9
Percentage of address space in use by end-sites: 92.9
Total number of prefixes smaller than registry allocations: 143956
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 100691
Total APNIC prefixes after maximum aggregation: 32639
APNIC Deaggregation factor: 3.08
Prefixes being announced from the APNIC address blocks: 101099
Unique aggregates announced from the APNIC address blocks: 41731
APNIC Region origin ASes present in the Internet Routing Table: 4707
APNIC Prefixes per ASN: 21.48
APNIC Region origin ASes announcing only one prefix: 1248
APNIC Region transit ASes present in the Internet Routing Table: 742
Average APNIC Region AS path length visible: 4.7
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 227
Number of APNIC addresses announced to Internet: 702947456
Equivalent to 41 /8s, 230 /16s and 32 /24s
Percentage of available APNIC address space announced: 82.2
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: 151879
Total ARIN prefixes after maximum aggregation: 77226
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 152854
Unique aggregates announced from the ARIN address blocks: 68024
ARIN Region origin ASes present in the Internet Routing Table: 15161
ARIN Prefixes per ASN: 10.08
ARIN Region origin ASes announcing only one prefix: 5752
ARIN Region transit ASes present in the Internet Routing Table: 1600
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 24
Number of ARIN region 32-bit ASNs visible in the Routing Table: 16
Number of ARIN addresses announced to Internet: 1081034368
Equivalent to 64 /8s, 111 /16s and 70 /24s
Percentage of available ARIN address space announced: 57.2
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: 103555
Total RIPE prefixes after maximum aggregation: 54773
RIPE Deaggregation factor: 1.89
Prefixes being announced from the RIPE address blocks: 105450
Unique aggregates announced from the RIPE address blocks: 66502
RIPE Region origin ASes present in the Internet Routing Table: 16625
RIPE Prefixes per ASN: 6.34
RIPE Region origin ASes announcing only one prefix: 8065
RIPE Region transit ASes present in the Internet Routing Table: 2664
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 28
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1645
Number of RIPE addresses announced to Internet: 630722692
Equivalent to 37 /8s, 152 /16s and 16 /24s
Percentage of available RIPE address space announced: 91.7
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
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: 42038
Total LACNIC prefixes after maximum aggregation: 8316
LACNIC Deaggregation factor: 5.06
Prefixes being announced from the LACNIC address blocks: 44471
Unique aggregates announced from the LACNIC address blocks: 21854
LACNIC Region origin ASes present in the Internet Routing Table: 1603
LACNIC Prefixes per ASN: 27.74
LACNIC Region origin ASes announcing only one prefix: 436
LACNIC Region transit ASes present in the Internet Routing Table: 306
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: 588
Number of LACNIC addresses announced to Internet: 110613672
Equivalent to 6 /8s, 151 /16s and 212 /24s
Percentage of available LACNIC address space announced: 65.9
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: 9310
Total AfriNIC prefixes after maximum aggregation: 2159
AfriNIC Deaggregation factor: 4.31
Prefixes being announced from the AfriNIC address blocks: 9752
Unique aggregates announced from the AfriNIC address blocks: 3261
AfriNIC Region origin ASes present in the Internet Routing Table: 546
AfriNIC Prefixes per ASN: 17.86
AfriNIC Region origin ASes announcing only one prefix: 166
AfriNIC Region transit ASes present in the Internet Routing Table: 119
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 40404480
Equivalent to 2 /8s, 104 /16s and 134 /24s
Percentage of available AfriNIC address space announced: 40.1
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 2672 11116 1158 Korea Telecom (KIX)
17974 1929 531 82 PT TELEKOMUNIKASI INDONESIA
7545 1684 301 86 TPG Internet Pty Ltd
4755 1593 386 155 TATA Communications formerly
9829 1300 1085 28 BSNL National Internet Backbo
9583 1183 89 509 Sify Limited
4808 1103 2049 314 CNCGROUP IP network: China169
7552 1089 1062 11 Vietel Corporation
24560 1031 385 163 Bharti Airtel Ltd., Telemedia
9498 966 291 63 BHARTI Airtel Ltd.
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 3405 3791 191 bellsouth.net, inc.
7029 3298 986 159 Windstream Communications Inc
18566 2091 382 181 Covad Communications
1785 1919 681 132 PaeTec Communications, Inc.
22773 1649 2911 121 Cox Communications, Inc.
20115 1643 1570 613 Charter Communications
4323 1574 1043 385 Time Warner Telecom
30036 1433 266 752 Mediacom Communications Corp
7018 1226 10014 825 AT&T WorldNet Services
11492 1189 216 356 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 1771 544 16 Corbina telecom
2118 1239 97 14 EUnet/RELCOM Autonomous Syste
12479 745 713 90 Uni2 Autonomous System
34984 708 188 172 BILISIM TELEKOM
31148 685 37 9 FreeNet ISP
20940 676 222 528 Akamai Technologies European
6830 661 2219 427 UPC Distribution Services
8551 575 364 61 Bezeq International
3320 489 8442 402 Deutsche Telekom AG
3292 475 2108 408 TDC Tele Danmark
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 1967 342 205 TVCABLE BOGOTA
28573 1917 1188 52 NET Servicos de Comunicao S.A
6503 1527 418 65 AVANTEL, S.A.
8151 1487 3068 336 UniNet S.A. de C.V.
7303 1440 901 195 Telecom Argentina Stet-France
26615 900 696 35 Tim Brasil S.A.
27947 705 73 93 Telconet S.A
11172 646 91 74 Servicios Alestra S.A de C.V
3816 584 245 92 Empresa Nacional de Telecomun
22047 583 326 15 VTR PUNTO NET 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 1254 958 13 TEDATA
24863 854 274 35 LINKdotNET AS number
6713 497 649 18 Itissalat Al-MAGHRIB
24835 321 80 8 RAYA Telecom - Egypt
3741 262 905 223 The Internet Solution
33776 210 12 21 Starcomms Nigeria Limited
12258 197 28 62 Vodacom Internet Company
16637 171 664 87 MTN Network Solutions
29975 167 571 19 Vodacom
29571 157 15 16 Ci Telecom Autonomous system
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 3405 3791 191 bellsouth.net, inc.
7029 3298 986 159 Windstream Communications Inc
4766 2672 11116 1158 Korea Telecom (KIX)
18566 2091 382 181 Covad Communications
10620 1967 342 205 TVCABLE BOGOTA
17974 1929 531 82 PT TELEKOMUNIKASI INDONESIA
1785 1919 681 132 PaeTec Communications, Inc.
28573 1917 1188 52 NET Servicos de Comunicao S.A
8402 1771 544 16 Corbina telecom
7545 1684 301 86 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 3298 3139 Windstream Communications Inc
18566 2091 1910 Covad Communications
28573 1917 1865 NET Servicos de Comunicao S.A
17974 1929 1847 PT TELEKOMUNIKASI INDONESIA
1785 1919 1787 PaeTec Communications, Inc.
10620 1967 1762 TVCABLE BOGOTA
8402 1771 1755 Corbina telecom
7545 1684 1598 TPG Internet Pty Ltd
22773 1649 1528 Cox Communications, Inc.
4766 2672 1514 Korea Telecom (KIX)
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
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
17300 UNALLOCATED 12.45.103.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic
32873 UNALLOCATED 12.46.100.0/23 10912 InterNAP Network Ser
32873 UNALLOCATED 12.46.102.0/24 10912 InterNAP Network Ser
14764 UNALLOCATED 12.108.237.0/24 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
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project
Complete listing at http://thyme.rand.apnic.net/current/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
5.83.16.0/21 35362 Best ISP
14.192.0.0/22 45464 Room 201, TGU Bldg
14.192.4.0/22 45464 Room 201, TGU Bldg
14.192.8.0/22 45464 Room 201, TGU Bldg
14.192.12.0/22 45464 Room 201, TGU Bldg
14.192.16.0/22 45464 Room 201, TGU Bldg
14.192.20.0/22 45464 Room 201, TGU Bldg
14.192.24.0/22 45464 Room 201, TGU Bldg
14.192.28.0/22 45464 Room 201, TGU Bldg
27.112.114.0/24 23884 Proimage Engineering and Comm
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 /9:13 /10:28 /11:83 /12:236
/13:462 /14:834 /15:1508 /16:12304 /17:6324 /18:10705
/19:20805 /20:29533 /21:31182 /22:40852 /23:38649 /24:216623
/25:1232 /26:1440 /27:848 /28:169 /29:68 /30:18
/31:0 /32:22
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2679 3298 Windstream Communications Inc
18566 2040 2091 Covad Communications
6389 1876 3405 bellsouth.net, inc.
8402 1465 1771 Corbina telecom
30036 1373 1433 Mediacom Communications Corp
11492 1152 1189 Cable One
22773 1081 1649 Cox Communications, Inc.
6503 1061 1527 AVANTEL, S.A.
1785 1032 1919 PaeTec Communications, Inc.
8452 1023 1254 TEDATA
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:529 2:767 3:1 4:13 5:60 6:3
8:426 12:2016 13:1 14:625 15:12 16:3
17:5 20:25 23:183 24:1777 27:1311 31:990
32:56 33:2 34:2 36:9 37:722 38:811
40:127 41:3113 42:135 44:3 46:1420 47:2
49:392 50:562 52:13 54:12 55:10 56:1
57:34 58:964 59:496 60:260 61:1213 62:1007
63:2007 64:4218 65:2251 66:4453 67:2007 68:1160
69:3172 70:981 71:509 72:1825 74:2599 75:478
76:329 77:958 78:979 79:491 80:1222 81:947
82:658 83:541 84:504 85:1190 86:424 87:926
88:337 89:1723 90:293 91:4931 92:572 93:1384
94:1591 95:1227 96:373 97:315 98:902 99:38
100:17 101:248 103:1163 106:103 107:186 108:332
109:1376 110:778 111:922 112:418 113:618 114:637
115:849 116:950 117:732 118:922 119:1223 120:350
121:692 122:1671 123:1090 124:1393 125:1254 128:559
129:199 130:250 131:633 132:289 133:22 134:244
135:61 136:215 137:239 138:334 139:191 140:494
141:253 142:416 143:377 144:531 145:73 146:510
147:292 148:768 149:314 150:161 151:176 152:472
153:173 154:16 155:447 156:223 157:381 158:188
159:603 160:350 161:268 162:352 163:190 164:641
165:416 166:588 167:473 168:862 169:127 170:882
171:138 172:4 173:1779 174:599 175:429 176:544
177:803 178:1455 180:1262 181:97 182:1018 183:229
184:535 185:1 186:2307 187:1106 188:1348 189:1842
190:5589 192:6010 193:5529 194:4539 195:3411 196:1222
197:156 198:3664 199:4787 200:5889 201:1948 202:8651
203:8543 204:4349 205:2539 206:2810 207:2795 208:4012
209:3608 210:2774 211:1548 212:2034 213:1931 214:868
215:86 216:5114 217:1565 218:553 219:312 220:1237
221:570 222:317 223:362
End of report
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