[AusNOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Sat May 12 04:44:41 EST 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 12 May, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 407563
Prefixes after maximum aggregation: 173478
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 199037
Total ASes present in the Internet Routing Table: 40961
Prefixes per ASN: 9.95
Origin-only ASes present in the Internet Routing Table: 33155
Origin ASes announcing only one prefix: 15644
Transit ASes present in the Internet Routing Table: 5484
Transit-only ASes present in the Internet Routing Table: 137
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 64
Max AS path prepend of ASN ( 9902) 56
Prefixes from unregistered ASNs in the Routing Table: 374
Unregistered ASNs in the Routing Table: 130
Number of 32-bit ASNs allocated by the RIRs: 2687
Number of 32-bit ASNs visible in the Routing Table: 2322
Prefixes from 32-bit ASNs in the Routing Table: 5860
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 108
Number of addresses announced to Internet: 2547853104
Equivalent to 151 /8s, 221 /16s and 39 /24s
Percentage of available address space announced: 68.7
Percentage of allocated address space announced: 68.8
Percentage of available address space allocated: 99.9
Percentage of address space in use by end-sites: 92.6
Total number of prefixes smaller than registry allocations: 173961
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 100290
Total APNIC prefixes after maximum aggregation: 32360
APNIC Deaggregation factor: 3.10
Prefixes being announced from the APNIC address blocks: 96740
Unique aggregates announced from the APNIC address blocks: 39871
APNIC Region origin ASes present in the Internet Routing Table: 4683
APNIC Prefixes per ASN: 20.66
APNIC Region origin ASes announcing only one prefix: 1234
APNIC Region transit ASes present in the Internet Routing Table: 729
Average APNIC Region AS path length visible: 4.7
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 203
Number of APNIC addresses announced to Internet: 644595328
Equivalent to 38 /8s, 107 /16s and 190 /24s
Percentage of available APNIC address space announced: 81.7
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: 150584
Total ARIN prefixes after maximum aggregation: 76455
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 121585
Unique aggregates announced from the ARIN address blocks: 50780
ARIN Region origin ASes present in the Internet Routing Table: 15088
ARIN Prefixes per ASN: 8.06
ARIN Region origin ASes announcing only one prefix: 5739
ARIN Region transit ASes present in the Internet Routing Table: 1596
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: 17
Number of ARIN addresses announced to Internet: 812031680
Equivalent to 48 /8s, 102 /16s and 158 /24s
Percentage of available ARIN address space announced: 64.8
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, 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: 100227
Total RIPE prefixes after maximum aggregation: 54165
RIPE Deaggregation factor: 1.85
Prefixes being announced from the RIPE address blocks: 92408
Unique aggregates announced from the RIPE address blocks: 58733
RIPE Region origin ASes present in the Internet Routing Table: 16564
RIPE Prefixes per ASN: 5.58
RIPE Region origin ASes announcing only one prefix: 8064
RIPE Region transit ASes present in the Internet Routing Table: 2649
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 30
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1551
Number of RIPE addresses announced to Internet: 512885448
Equivalent to 30 /8s, 146 /16s and 2 /24s
Percentage of available RIPE address space announced: 82.6
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: 41419
Total LACNIC prefixes after maximum aggregation: 8278
LACNIC Deaggregation factor: 5.00
Prefixes being announced from the LACNIC address blocks: 41394
Unique aggregates announced from the LACNIC address blocks: 20500
LACNIC Region origin ASes present in the Internet Routing Table: 1598
LACNIC Prefixes per ASN: 25.90
LACNIC Region origin ASes announcing only one prefix: 441
LACNIC Region transit ASes present in the Internet Routing Table: 300
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 21
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 546
Number of LACNIC addresses announced to Internet: 100238984
Equivalent to 5 /8s, 249 /16s and 134 /24s
Percentage of available LACNIC address space announced: 66.4
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: 8993
Total AfriNIC prefixes after maximum aggregation: 2154
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 7041
Unique aggregates announced from the AfriNIC address blocks: 2219
AfriNIC Region origin ASes present in the Internet Routing Table: 532
AfriNIC Prefixes per ASN: 13.23
AfriNIC Region origin ASes announcing only one prefix: 166
AfriNIC Region transit ASes present in the Internet Routing Table: 122
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: 5
Number of AfriNIC addresses announced to Internet: 31782656
Equivalent to 1 /8s, 228 /16s and 247 /24s
Percentage of available AfriNIC address space announced: 47.4
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 2540 11114 1040 Korea Telecom (KIX)
17974 1869 510 73 PT TELEKOMUNIKASI INDONESIA
7545 1678 301 85 TPG Internet Pty Ltd
4755 1593 388 162 TATA Communications formerly
9829 1283 1069 30 BSNL National Internet Backbo
7552 1164 1062 11 Vietel Corporation
9583 1156 86 500 Sify Limited
4808 1104 2049 315 CNCGROUP IP network: China169
24560 1027 385 167 Bharti Airtel Ltd., Telemedia
9498 965 291 64 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 3415 3807 193 bellsouth.net, inc.
7029 3376 986 159 Windstream Communications Inc
18566 2093 382 179 Covad Communications
1785 1903 681 131 PaeTec Communications, Inc.
20115 1638 1566 620 Charter Communications
4323 1606 1044 383 Time Warner Telecom
22773 1597 2911 115 Cox Communications, Inc.
30036 1407 262 752 Mediacom Communications Corp
7018 1251 10038 820 AT&T WorldNet Services
11492 1186 216 364 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 1728 544 16 Corbina telecom
34984 693 188 172 BILISIM TELEKOM
31148 685 37 9 FreeNet ISP
12479 679 671 69 Uni2 Autonomous System
20940 657 216 511 Akamai Technologies European
6830 656 2215 426 UPC Distribution Services
8551 573 360 80 Bezeq International
3320 485 8442 401 Deutsche Telekom AG
3292 473 2108 407 TDC Tele Danmark
8866 436 134 27 Bulgarian Telecommunication C
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 1869 334 175 TVCABLE BOGOTA
28573 1849 1137 58 NET Servicos de Comunicao S.A
6503 1524 418 66 AVANTEL, S.A.
8151 1480 3003 342 UniNet S.A. de C.V.
7303 1371 837 188 Telecom Argentina Stet-France
26615 903 761 33 Tim Brasil S.A.
27947 693 74 98 Telconet S.A
11172 642 91 73 Servicios Alestra S.A de C.V
22047 582 326 15 VTR PUNTO NET S.A.
3816 576 243 98 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
8452 1307 958 13 TEDATA
24863 845 274 35 LINKdotNET AS number
6713 496 649 18 Itissalat Al-MAGHRIB
3741 263 921 223 The Internet Solution
12258 197 28 62 Vodacom Internet Company
33776 197 12 21 Starcomms Nigeria Limited
24835 179 80 8 RAYA Telecom - Egypt
16637 170 666 83 MTN Network Solutions
15706 169 32 6 Sudatel Internet Exchange Aut
29571 158 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 3415 3807 193 bellsouth.net, inc.
7029 3376 986 159 Windstream Communications Inc
4766 2540 11114 1040 Korea Telecom (KIX)
18566 2093 382 179 Covad Communications
1785 1903 681 131 PaeTec Communications, Inc.
10620 1869 334 175 TVCABLE BOGOTA
17974 1869 510 73 PT TELEKOMUNIKASI INDONESIA
28573 1849 1137 58 NET Servicos de Comunicao S.A
8402 1728 544 16 Corbina telecom
7545 1678 301 85 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 3376 3217 Windstream Communications Inc
18566 2093 1914 Covad Communications
17974 1869 1796 PT TELEKOMUNIKASI INDONESIA
28573 1849 1791 NET Servicos de Comunicao S.A
1785 1903 1772 PaeTec Communications, Inc.
8402 1728 1712 Corbina telecom
10620 1869 1694 TVCABLE BOGOTA
7545 1678 1593 TPG Internet Pty Ltd
4766 2540 1500 Korea Telecom (KIX)
22773 1597 1482 Cox 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
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
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
5.32.168.0/21 15836 ARAX Autonomous System
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 /9:12 /10:29 /11:81 /12:235
/13:460 /14:831 /15:1496 /16:12241 /17:6253 /18:10573
/19:20706 /20:29319 /21:30533 /22:39962 /23:38226 /24:212903
/25:1197 /26:1433 /27:787 /28:164 /29:66 /30:17
/31:0 /32:20
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3033 3376 Windstream Communications Inc
6389 2134 3415 bellsouth.net, inc.
18566 2042 2093 Covad Communications
10620 1715 1869 TVCABLE BOGOTA
8402 1706 1728 Corbina telecom
30036 1348 1407 Mediacom Communications Corp
6503 1282 1524 AVANTEL, S.A.
11492 1149 1186 Cable One
8452 1108 1307 TEDATA
7011 1069 1184 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:543 2:704 4:14 5:2 6:3 8:411
12:2001 13:1 14:610 15:12 16:3 17:5
20:23 23:166 24:1769 27:1298 31:953 32:57
33:2 34:2 36:8 37:440 38:808 40:120
41:3115 42:136 44:3 46:1417 47:3 49:402
50:546 52:13 54:10 55:13 56:3 57:32
58:961 59:509 60:255 61:1280 62:986 63:2056
64:4181 65:2241 66:4468 67:2019 68:1166 69:3209
70:905 71:484 72:1818 74:2592 75:492 76:319
77:948 78:985 79:489 80:1215 81:909 82:667
83:554 84:487 85:1224 86:438 87:918 88:334
89:1694 90:292 91:4810 92:539 93:1469 94:1519
95:903 96:369 97:316 98:873 99:38 100:7
101:186 103:1059 106:103 107:187 108:284 109:1337
110:769 111:915 112:409 113:605 114:631 115:898
116:938 117:715 118:911 119:1236 120:352 121:805
122:1668 123:1102 124:1382 125:1246 128:561 129:197
130:252 131:629 132:179 133:22 134:247 135:62
136:214 137:178 138:334 139:183 140:493 141:243
142:413 143:432 144:526 145:70 146:497 147:282
148:772 149:306 150:157 151:176 152:466 153:172
154:12 155:400 156:219 157:381 158:179 159:545
160:338 161:260 162:347 163:191 164:588 165:386
166:572 167:467 168:859 169:126 170:770 171:131
172:2 173:1738 174:583 175:432 176:696 177:735
178:1361 180:1208 181:82 182:974 183:290 184:486
185:1 186:2282 187:1074 188:1264 189:1791 190:5572
192:6002 193:5288 194:3807 195:3217 196:1283 197:135
198:3640 199:4605 200:5855 201:1936 202:8565 203:8595
204:4327 205:2526 206:2763 207:2798 208:4078 209:3616
210:2752 211:1489 212:2026 213:1935 214:851 215:103
216:5104 217:1546 218:544 219:338 220:1231 221:558
222:322 223:339
End of report
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