[AusNOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Sat Mar 17 05:57:41 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 17 Mar, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 401129
Prefixes after maximum aggregation: 170803
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 194695
Total ASes present in the Internet Routing Table: 40373
Prefixes per ASN: 9.94
Origin-only ASes present in the Internet Routing Table: 32891
Origin ASes announcing only one prefix: 15486
Transit ASes present in the Internet Routing Table: 5406
Transit-only ASes present in the Internet Routing Table: 141
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 33
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 407
Unregistered ASNs in the Routing Table: 187
Number of 32-bit ASNs allocated by the RIRs: 2322
Number of 32-bit ASNs visible in the Routing Table: 2076
Prefixes from 32-bit ASNs in the Routing Table: 5015
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 687
Number of addresses announced to Internet: 2526912912
Equivalent to 150 /8s, 157 /16s and 161 /24s
Percentage of available address space announced: 68.2
Percentage of allocated address space announced: 68.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.1
Total number of prefixes smaller than registry allocations: 170384
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 98366
Total APNIC prefixes after maximum aggregation: 31927
APNIC Deaggregation factor: 3.08
Prefixes being announced from the APNIC address blocks: 94757
Unique aggregates announced from the APNIC address blocks: 39280
APNIC Region origin ASes present in the Internet Routing Table: 4667
APNIC Prefixes per ASN: 20.30
APNIC Region origin ASes announcing only one prefix: 1233
APNIC Region transit ASes present in the Internet Routing Table: 728
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: 165
Number of APNIC addresses announced to Internet: 640873312
Equivalent to 38 /8s, 50 /16s and 243 /24s
Percentage of available APNIC address space announced: 81.3
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: 148801
Total ARIN prefixes after maximum aggregation: 75607
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 120341
Unique aggregates announced from the ARIN address blocks: 49824
ARIN Region origin ASes present in the Internet Routing Table: 14938
ARIN Prefixes per ASN: 8.06
ARIN Region origin ASes announcing only one prefix: 5674
ARIN Region transit ASes present in the Internet Routing Table: 1573
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 15
Number of ARIN addresses announced to Internet: 806524160
Equivalent to 48 /8s, 18 /16s and 149 /24s
Percentage of available ARIN address space announced: 64.1
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, 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: 100879
Total RIPE prefixes after maximum aggregation: 52925
RIPE Deaggregation factor: 1.91
Prefixes being announced from the RIPE address blocks: 92343
Unique aggregates announced from the RIPE address blocks: 57046
RIPE Region origin ASes present in the Internet Routing Table: 16347
RIPE Prefixes per ASN: 5.65
RIPE Region origin ASes announcing only one prefix: 7976
RIPE Region transit ASes present in the Internet Routing Table: 2618
Average RIPE Region AS path length visible: 4.7
Max RIPE Region AS path length visible: 33
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1415
Number of RIPE addresses announced to Internet: 502120968
Equivalent to 29 /8s, 237 /16s and 194 /24s
Percentage of available RIPE address space announced: 80.9
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: 39029
Total LACNIC prefixes after maximum aggregation: 8078
LACNIC Deaggregation factor: 4.83
Prefixes being announced from the LACNIC address blocks: 38752
Unique aggregates announced from the LACNIC address blocks: 19591
LACNIC Region origin ASes present in the Internet Routing Table: 1572
LACNIC Prefixes per ASN: 24.65
LACNIC Region origin ASes announcing only one prefix: 438
LACNIC Region transit ASes present in the Internet Routing Table: 289
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 18
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 476
Number of LACNIC addresses announced to Internet: 98357384
Equivalent to 5 /8s, 220 /16s and 208 /24s
Percentage of available LACNIC address space announced: 65.1
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: 8782
Total AfriNIC prefixes after maximum aggregation: 2113
AfriNIC Deaggregation factor: 4.16
Prefixes being announced from the AfriNIC address blocks: 6876
Unique aggregates announced from the AfriNIC address blocks: 2175
AfriNIC Region origin ASes present in the Internet Routing Table: 522
AfriNIC Prefixes per ASN: 13.17
AfriNIC Region origin ASes announcing only one prefix: 165
AfriNIC Region transit ASes present in the Internet Routing Table: 116
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: 31557120
Equivalent to 1 /8s, 225 /16s and 134 /24s
Percentage of available AfriNIC address space announced: 47.0
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 2492 11110 994 Korea Telecom (KIX)
17974 1744 503 36 PT TELEKOMUNIKASI INDONESIA
7545 1652 303 87 TPG Internet Pty Ltd
4755 1569 386 160 TATA Communications formerly
9583 1202 91 509 Sify Limited
9829 1189 1001 30 BSNL National Internet Backbo
7552 1162 1062 11 Vietel Corporation
4808 1095 2048 312 CNCGROUP IP network: China169
24560 1012 384 166 Bharti Airtel Ltd., Telemedia
18101 948 130 160 Reliance Infocom Ltd Internet
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
7029 3395 1006 158 Windstream Communications Inc
6389 3384 3807 198 bellsouth.net, inc.
18566 2091 382 177 Covad Communications
1785 1882 680 127 PaeTec Communications, Inc.
20115 1631 1558 628 Charter Communications
4323 1603 1060 382 Time Warner Telecom
22773 1547 2910 111 Cox Communications, Inc.
30036 1396 252 747 Mediacom Communications Corp
7018 1275 9776 835 AT&T WorldNet Services
11492 1164 212 415 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 1779 544 16 Corbina telecom
2118 1427 97 13 EUnet/RELCOM Autonomous Syste
15557 1089 2247 55 LDCOM NETWORKS
34984 664 188 172 BILISIM TELEKOM
6830 641 1943 412 UPC Distribution Services
12479 638 653 67 Uni2 Autonomous System
20940 628 201 487 Akamai Technologies European
8551 575 360 81 Bezeq International
31148 539 37 9 FreeNet ISP
3320 533 8442 399 Deutsche Telekom AG
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 1789 328 143 TVCABLE BOGOTA
28573 1721 1094 58 NET Servicos de Comunicao S.A
8151 1484 3015 348 UniNet S.A. de C.V.
7303 1330 823 185 Telecom Argentina Stet-France
26615 900 676 30 Tim Brasil S.A.
27947 680 68 108 Telconet S.A
11172 635 91 73 Servicios Alestra S.A de C.V
22047 584 326 15 VTR PUNTO NET S.A.
3816 559 240 89 Empresa Nacional de Telecomun
6503 559 418 65 AVANTEL, 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 1258 958 13 TEDATA
24863 842 274 37 LINKdotNET AS number
6713 489 649 18 Itissalat Al-MAGHRIB
3741 271 923 228 The Internet Solution
15706 227 32 6 Sudatel Internet Exchange Aut
12258 197 28 62 Vodacom Internet Company
24835 182 80 8 RAYA Telecom - Egypt
33776 158 12 25 Starcomms Nigeria Limited
36923 157 20 4 Swift Networks Limited
29571 153 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
7029 3395 1006 158 Windstream Communications Inc
6389 3384 3807 198 bellsouth.net, inc.
4766 2492 11110 994 Korea Telecom (KIX)
18566 2091 382 177 Covad Communications
1785 1882 680 127 PaeTec Communications, Inc.
10620 1789 328 143 TVCABLE BOGOTA
8402 1779 544 16 Corbina telecom
17974 1744 503 36 PT TELEKOMUNIKASI INDONESIA
28573 1721 1094 58 NET Servicos de Comunicao S.A
7545 1652 303 87 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
6389 3384 3186 bellsouth.net, inc.
18566 2091 1914 Covad Communications
8402 1779 1763 Corbina telecom
1785 1882 1755 PaeTec Communications, Inc.
17974 1744 1708 PT TELEKOMUNIKASI INDONESIA
28573 1721 1663 NET Servicos de Comunicao S.A
10620 1789 1646 TVCABLE BOGOTA
7545 1652 1565 TPG Internet Pty Ltd
4766 2492 1498 Korea Telecom (KIX)
22773 1547 1436 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
14.192.0.0/22 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
23.27.0.0/20 54500 EGIHosting
23.27.16.0/20 54500 EGIHosting
23.27.32.0/20 54500 EGIHosting
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 /10:28 /11:81 /12:235
/13:458 /14:821 /15:1475 /16:12185 /17:6236 /18:10418
/19:20518 /20:28618 /21:29535 /22:40003 /23:37293 /24:209464
/25:1218 /26:1453 /27:794 /28:169 /29:60 /30:17
/31:0 /32:19
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3051 3395 Windstream Communications Inc
6389 2092 3384 bellsouth.net, inc.
18566 2040 2091 Covad Communications
8402 1756 1779 Corbina telecom
10620 1686 1789 TVCABLE BOGOTA
30036 1345 1396 Mediacom Communications Corp
11492 1127 1164 Cable One
8452 1068 1258 TEDATA
1785 1065 1882 PaeTec Communications, Inc.
7011 1038 1152 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:531 2:798 4:14 6:3 8:394 12:1972
13:1 14:599 15:11 16:3 17:7 20:8
23:144 24:1753 27:1239 31:956 32:62 33:2
34:2 36:8 37:259 38:777 40:122 41:3013
42:128 44:3 46:1421 47:3 49:342 50:515
52:13 54:5 55:10 56:3 57:38 58:953
59:495 60:278 61:1191 62:978 63:2014 64:4163
65:2285 66:4487 67:2000 68:1159 69:3170 70:900
71:389 72:1779 74:2583 75:490 76:319 77:968
78:979 79:497 80:1218 81:891 82:633 83:547
84:596 85:1186 86:726 87:910 88:335 89:1565
90:288 91:4598 92:517 93:1454 94:1393 95:1125
96:375 97:316 98:818 99:38 100:6 101:203
103:901 106:64 107:173 108:204 109:1531 110:746
111:881 112:441 113:562 114:617 115:776 116:868
117:723 118:906 119:1203 120:336 121:690 122:1626
123:1088 124:1364 125:1274 128:547 129:190 130:263
131:595 132:170 133:21 134:239 135:63 136:212
137:185 138:275 139:145 140:493 141:241 142:389
143:418 144:500 145:69 146:490 147:240 148:724
149:300 150:158 151:176 152:455 153:171 154:7
155:430 156:213 157:379 158:163 159:521 160:327
161:246 162:341 163:185 164:533 165:393 166:563
167:462 168:803 169:148 170:842 171:121 172:4
173:1715 174:596 175:434 176:416 177:553 178:1286
180:1132 181:73 182:793 183:284 184:445 185:1
186:2114 187:843 188:1060 189:1208 190:5534 192:5989
193:5588 194:4562 195:3639 196:1280 197:170 198:3616
199:4453 200:5750 201:1646 202:8431 203:8592 204:4347
205:2458 206:2720 207:2797 208:4073 209:3586 210:2764
211:1463 212:1966 213:1877 214:861 215:105 216:5053
217:1522 218:540 219:339 220:1231 221:552 222:324
223:325
End of report
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