[afnog] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Dec 2 19:21:11 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 Dec, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 383257
Prefixes after maximum aggregation: 167342
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 188231
Total ASes present in the Internet Routing Table: 39463
Prefixes per ASN: 9.71
Origin-only ASes present in the Internet Routing Table: 32445
Origin ASes announcing only one prefix: 15489
Transit ASes present in the Internet Routing Table: 5326
Transit-only ASes present in the Internet Routing Table: 142
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 33
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 1825
Unregistered ASNs in the Routing Table: 938
Number of 32-bit ASNs allocated by the RIRs: 2031
Number of 32-bit ASNs visible in the Routing Table: 1692
Prefixes from 32-bit ASNs in the Routing Table: 4000
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 86
Number of addresses announced to Internet: 2497290368
Equivalent to 148 /8s, 217 /16s and 160 /24s
Percentage of available address space announced: 67.4
Percentage of allocated address space announced: 67.4
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.7
Total number of prefixes smaller than registry allocations: 161883
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 95145
Total APNIC prefixes after maximum aggregation: 31175
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 91627
Unique aggregates announced from the APNIC address blocks: 38267
APNIC Region origin ASes present in the Internet Routing Table: 4600
APNIC Prefixes per ASN: 19.92
APNIC Region origin ASes announcing only one prefix: 1249
APNIC Region transit ASes present in the Internet Routing Table: 727
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 116
Number of APNIC addresses announced to Internet: 631205216
Equivalent to 37 /8s, 159 /16s and 109 /24s
Percentage of available APNIC address space announced: 80.0
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: 146116
Total ARIN prefixes after maximum aggregation: 74691
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 118285
Unique aggregates announced from the ARIN address blocks: 48671
ARIN Region origin ASes present in the Internet Routing Table: 14775
ARIN Prefixes per ASN: 8.01
ARIN Region origin ASes announcing only one prefix: 5644
ARIN Region transit ASes present in the Internet Routing Table: 1574
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 25
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 803370432
Equivalent to 47 /8s, 226 /16s and 117 /24s
Percentage of available ARIN address space announced: 63.8
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: 92913
Total RIPE prefixes after maximum aggregation: 51424
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 85148
Unique aggregates announced from the RIPE address blocks: 54728
RIPE Region origin ASes present in the Internet Routing Table: 16155
RIPE Prefixes per ASN: 5.27
RIPE Region origin ASes announcing only one prefix: 7997
RIPE Region transit ASes present in the Internet Routing Table: 2543
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: 1186
Number of RIPE addresses announced to Internet: 492772928
Equivalent to 29 /8s, 95 /16s and 30 /24s
Percentage of available RIPE address space announced: 79.4
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: 36582
Total LACNIC prefixes after maximum aggregation: 7943
LACNIC Deaggregation factor: 4.61
Prefixes being announced from the LACNIC address blocks: 36006
Unique aggregates announced from the LACNIC address blocks: 18774
LACNIC Region origin ASes present in the Internet Routing Table: 1554
LACNIC Prefixes per ASN: 23.17
LACNIC Region origin ASes announcing only one prefix: 442
LACNIC Region transit ASes present in the Internet Routing Table: 286
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 18
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 374
Number of LACNIC addresses announced to Internet: 94397312
Equivalent to 5 /8s, 160 /16s and 99 /24s
Percentage of available LACNIC address space announced: 62.5
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: 8338
Total AfriNIC prefixes after maximum aggregation: 2041
AfriNIC Deaggregation factor: 4.09
Prefixes being announced from the AfriNIC address blocks: 6390
Unique aggregates announced from the AfriNIC address blocks: 2012
AfriNIC Region origin ASes present in the Internet Routing Table: 504
AfriNIC Prefixes per ASN: 12.68
AfriNIC Region origin ASes announcing only one prefix: 157
AfriNIC Region transit ASes present in the Internet Routing Table: 110
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: 4
Number of AfriNIC addresses announced to Internet: 30034432
Equivalent to 1 /8s, 202 /16s and 74 /24s
Percentage of available AfriNIC address space announced: 44.8
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 2510 11105 973 Korea Telecom (KIX)
17974 1652 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1626 303 87 TPG Internet Pty Ltd
4755 1511 381 157 TATA Communications formerly
7552 1386 1064 7 Vietel Corporation
9829 1166 989 28 BSNL National Internet Backbo
9583 1095 80 494 Sify Limited
4808 1079 2038 305 CNCGROUP IP network: China169
24560 985 390 151 Bharti Airtel Ltd., Telemedia
18101 958 121 155 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
6389 3483 3814 218 bellsouth.net, inc.
7029 2912 1016 199 Windstream Communications Inc
18566 2093 383 177 Covad Communications
1785 1852 680 120 PaeTec Communications, Inc.
4323 1616 1073 386 Time Warner Telecom
20115 1603 1546 625 Charter Communications
22773 1507 2909 104 Cox Communications, Inc.
30036 1435 257 675 Mediacom Communications Corp
19262 1388 4683 401 Verizon Global Networks
7018 1314 7029 860 AT&T WorldNet Services
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 1552 480 15 Corbina telecom
6830 645 1927 412 UPC Distribution Services
34984 616 116 195 BILISIM TELEKOM
20940 546 174 437 Akamai Technologies European
3320 517 8168 390 Deutsche Telekom AG
12479 494 601 13 Uni2 Autonomous System
3292 480 2106 407 TDC Tele Danmark
8866 462 133 26 Bulgarian Telecommunication C
8551 451 366 45 Bezeq International
31148 413 22 115 FreeNet ISP
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 1702 315 180 TVCABLE BOGOTA
28573 1537 1059 72 NET Servicos de Comunicao S.A
8151 1334 2985 345 UniNet S.A. de C.V.
7303 1239 751 174 Telecom Argentina Stet-France
27947 606 72 89 Telconet S.A
22047 582 322 17 VTR PUNTO NET S.A.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
6503 552 434 68 AVANTEL, S.A.
3816 547 237 89 Empresa Nacional de Telecomun
11172 527 85 95 Servicios Alestra S.A de C.V
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 926 958 13 TEDATA
24863 785 146 35 LINKdotNET AS number
3741 281 939 230 The Internet Solution
15706 242 32 6 Sudatel Internet Exchange Aut
6713 235 519 14 Itissalat Al-MAGHRIB
33776 231 13 10 Starcomms Nigeria Limited
29571 217 17 13 Ci Telecom Autonomous system
12258 195 28 60 Vodacom Internet Company
24835 190 80 8 RAYA Telecom - Egypt
16637 160 662 82 MTN Network Solutions
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 3483 3814 218 bellsouth.net, inc.
7029 2912 1016 199 Windstream Communications Inc
4766 2510 11105 973 Korea Telecom (KIX)
18566 2093 383 177 Covad Communications
1785 1852 680 120 PaeTec Communications, Inc.
10620 1702 315 180 TVCABLE BOGOTA
17974 1652 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1626 303 87 TPG Internet Pty Ltd
4323 1616 1073 386 Time Warner Telecom
20115 1603 1546 625 Charter Communications
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 2912 2713 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1852 1732 PaeTec Communications, Inc.
17974 1652 1614 PT TELEKOMUNIKASI INDONESIA
7545 1626 1539 TPG Internet Pty Ltd
4766 2510 1537 Korea Telecom (KIX)
8402 1552 1537 Corbina telecom
10620 1702 1522 TVCABLE BOGOTA
28573 1537 1465 NET Servicos de Comunicao S.A
22773 1507 1403 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
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
41.222.79.0/24 37345 MEDALLION Communications
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
64.21.192.0/20 11610 Internet Nebraska Corporation
64.21.212.0/22 11610 Internet Nebraska Corporation
64.21.216.0/21 11610 Internet Nebraska Corporation
66.171.32.0/20 705 UUNET Technologies, Inc.
66.175.222.0/23 30058 FDC Servers.net, LLC
66.180.239.0/24 35888 VIGNETTE CORPORATION
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 /12:236
/13:463 /14:807 /15:1437 /16:12055 /17:6113 /18:10143
/19:20053 /20:27738 /21:28008 /22:38142 /23:35692 /24:198843
/25:1181 /26:1400 /27:785 /28:14 /29:3 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2541 2912 Windstream Communications Inc
6389 2126 3483 bellsouth.net, inc.
18566 2042 2093 Covad Communications
10620 1597 1702 TVCABLE BOGOTA
8402 1527 1552 Corbina telecom
30036 1395 1435 Mediacom Communications Corp
11492 1119 1156 Cable One
1785 1058 1852 PaeTec Communications, Inc.
7011 1048 1165 Citizens Utilities
22773 967 1507 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:442 2:489 4:15 5:1 6:3 8:359
12:1947 13:1 14:548 15:11 16:3 17:7
20:9 23:69 24:1694 27:1059 31:717 32:67
33:2 34:2 36:4 38:770 39:1 40:114
41:2860 42:66 43:1 44:3 46:1111 47:3
49:292 50:450 52:13 55:6 56:2 57:49
58:939 59:486 60:358 61:1178 62:913 63:1968
64:4049 65:2308 66:4368 67:1998 68:1174 69:3147
70:904 71:361 72:1772 74:2641 75:430 76:320
77:907 78:890 79:438 80:1142 81:834 82:523
83:527 84:471 85:1164 86:410 87:907 88:341
89:1587 90:246 91:4314 92:532 93:1423 94:1327
95:1096 96:397 97:285 98:764 99:37 101:121
103:523 106:7 107:103 108:88 109:1120 110:668
111:818 112:367 113:487 114:622 115:700 116:896
117:708 118:870 119:1229 120:349 121:667 122:1567
123:1019 124:1348 125:1349 128:278 129:185 130:183
131:632 132:155 133:21 134:222 135:54 136:212
137:146 138:287 139:123 140:491 141:253 142:379
143:405 144:498 145:62 146:475 147:221 148:643
149:270 150:166 151:192 152:449 153:171 154:7
155:381 156:209 157:359 158:156 159:523 160:333
161:214 162:364 163:176 164:521 165:385 166:542
167:453 168:823 169:146 170:822 171:87 172:4
173:1767 174:586 175:418 176:329 177:411 178:1150
180:1178 181:39 182:669 183:242 184:399 185:1
186:1478 187:784 188:947 189:1164 190:5286 192:5965
193:5118 194:3555 195:3119 196:1283 197:169 198:3624
199:4235 200:5523 201:1696 202:8474 203:8494 204:4322
205:2409 206:2668 207:2839 208:4011 209:3551 210:2730
211:1473 212:1991 213:1804 214:813 215:92 216:4933
217:1486 218:577 219:340 220:1252 221:525 222:325
223:229
End of report
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