[AusNOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Sat Aug 27 05:09:20 EST 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 27 Aug, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 368931
Prefixes after maximum aggregation: 167074
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 182937
Total ASes present in the Internet Routing Table: 38620
Prefixes per ASN: 9.55
Origin-only ASes present in the Internet Routing Table: 32036
Origin ASes announcing only one prefix: 15383
Transit ASes present in the Internet Routing Table: 5228
Transit-only ASes present in the Internet Routing Table: 145
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 34
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 1164
Unregistered ASNs in the Routing Table: 661
Number of 32-bit ASNs allocated by the RIRs: 1679
Number of 32-bit ASNs visible in the Routing Table: 1356
Prefixes from 32-bit ASNs in the Routing Table: 3121
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 110
Number of addresses announced to Internet: 2471627360
Equivalent to 147 /8s, 82 /16s and 10 /24s
Percentage of available address space announced: 66.7
Percentage of allocated address space announced: 66.7
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.2
Total number of prefixes smaller than registry allocations: 153708
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92897
Total APNIC prefixes after maximum aggregation: 30576
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 89398
Unique aggregates announced from the APNIC address blocks: 37839
APNIC Region origin ASes present in the Internet Routing Table: 4549
APNIC Prefixes per ASN: 19.65
APNIC Region origin ASes announcing only one prefix: 1254
APNIC Region transit ASes present in the Internet Routing Table: 714
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: 75
Number of APNIC addresses announced to Internet: 625593632
Equivalent to 37 /8s, 73 /16s and 205 /24s
Percentage of available APNIC address space announced: 79.3
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: 142685
Total ARIN prefixes after maximum aggregation: 73434
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 114619
Unique aggregates announced from the ARIN address blocks: 47132
ARIN Region origin ASes present in the Internet Routing Table: 14615
ARIN Prefixes per ASN: 7.84
ARIN Region origin ASes announcing only one prefix: 5614
ARIN Region transit ASes present in the Internet Routing Table: 1545
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 34
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 803940128
Equivalent to 47 /8s, 235 /16s and 39 /24s
Percentage of available ARIN address space announced: 63.9
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: 87756
Total RIPE prefixes after maximum aggregation: 49836
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 80901
Unique aggregates announced from the RIPE address blocks: 53610
RIPE Region origin ASes present in the Internet Routing Table: 15920
RIPE Prefixes per ASN: 5.08
RIPE Region origin ASes announcing only one prefix: 7922
RIPE Region transit ASes present in the Internet Routing Table: 2510
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 33
Number of RIPE region 32-bit ASNs visible in the Routing Table: 967
Number of RIPE addresses announced to Internet: 488260864
Equivalent to 29 /8s, 26 /16s and 69 /24s
Percentage of available RIPE address space announced: 78.7
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
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: 34135
Total LACNIC prefixes after maximum aggregation: 7718
LACNIC Deaggregation factor: 4.42
Prefixes being announced from the LACNIC address blocks: 33388
Unique aggregates announced from the LACNIC address blocks: 17451
LACNIC Region origin ASes present in the Internet Routing Table: 1507
LACNIC Prefixes per ASN: 22.16
LACNIC Region origin ASes announcing only one prefix: 443
LACNIC Region transit ASes present in the Internet Routing Table: 278
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: 298
Number of LACNIC addresses announced to Internet: 87851136
Equivalent to 5 /8s, 60 /16s and 128 /24s
Percentage of available LACNIC address space announced: 58.2
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: 8161
Total AfriNIC prefixes after maximum aggregation: 2047
AfriNIC Deaggregation factor: 3.99
Prefixes being announced from the AfriNIC address blocks: 6264
Unique aggregates announced from the AfriNIC address blocks: 2070
AfriNIC Region origin ASes present in the Internet Routing Table: 479
AfriNIC Prefixes per ASN: 13.08
AfriNIC Region origin ASes announcing only one prefix: 150
AfriNIC Region transit ASes present in the Internet Routing Table: 103
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: 4
Number of AfriNIC addresses announced to Internet: 26705664
Equivalent to 1 /8s, 151 /16s and 127 /24s
Percentage of available AfriNIC address space announced: 39.8
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 2506 11047 952 Korea Telecom (KIX)
17974 1995 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1575 301 84 TPG Internet Pty Ltd
4755 1537 635 168 TATA Communications formerly
7552 1416 1064 7 Vietel Corporation
24560 1198 336 189 Bharti Airtel Ltd., Telemedia
9829 1153 989 28 BSNL National Internet Backbo
9583 1076 79 496 Sify Limited
4808 1059 2094 305 CNCGROUP IP network: China169
17488 1020 192 147 Hathway IP Over Cable Interne
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 3580 3817 226 bellsouth.net, inc.
18566 1912 364 240 Covad Communications
1785 1821 680 122 PaeTec Communications, Inc.
4323 1613 1085 395 Time Warner Telecom
20115 1588 1538 632 Charter Communications
7029 1580 995 230 Windstream Communications Inc
22773 1442 2903 97 Cox Communications, Inc.
19262 1405 4778 395 Verizon Global Networks
7018 1349 7051 881 AT&T WorldNet Services
2386 1225 515 885 AT&T Data Communications Serv
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
34984 541 107 182 BILISIM TELEKOM
6830 522 1810 321 UPC Distribution Services
20940 490 146 381 Akamai Technologies European
3292 469 2080 404 TDC Tele Danmark
8866 458 133 26 Bulgarian Telecommunication C
12479 457 593 7 Uni2 Autonomous System
3320 425 8151 371 Deutsche Telekom AG
29049 424 31 55 AzerSat LLC.
8551 404 354 44 Bezeq International
3301 399 1855 348 TeliaNet Sweden
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 1622 297 155 TVCABLE BOGOTA
8151 1407 2792 350 UniNet S.A. de C.V.
28573 1271 996 67 NET Servicos de Comunicao S.A
7303 1059 578 173 Telecom Argentina Stet-France
14420 711 56 87 CORPORACION NACIONAL DE TELEC
6503 591 450 68 AVANTEL, S.A.
22047 578 322 17 VTR PUNTO NET S.A.
27947 559 55 82 Telconet S.A
7738 515 986 31 Telecomunicacoes da Bahia S.A
11172 509 85 89 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
24863 808 145 59 LINKdotNET AS number
8452 530 445 11 TEDATA
15475 512 74 8 Nile Online
36992 300 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 229 503 17 Itissalat Al-MAGHRIB
15706 219 32 6 Sudatel Internet Exchange Aut
33776 196 12 22 Starcomms Nigeria Limited
12258 194 28 61 Vodacom Internet Company
24835 176 70 11 RAYA Telecom - Egypt
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 3580 3817 226 bellsouth.net, inc.
23456 3121 743 1687 32-bit ASN transition
4766 2506 11047 952 Korea Telecom (KIX)
17974 1995 516 31 PT TELEKOMUNIKASI INDONESIA
18566 1912 364 240 Covad Communications
1785 1821 680 122 PaeTec Communications, Inc.
10620 1622 297 155 TVCABLE BOGOTA
4323 1613 1085 395 Time Warner Telecom
20115 1588 1538 632 Charter Communications
7029 1580 995 230 Windstream Communications Inc
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 1995 1964 PT TELEKOMUNIKASI INDONESIA
1785 1821 1699 PaeTec Communications, Inc.
18566 1912 1672 Covad Communications
4766 2506 1554 Korea Telecom (KIX)
7545 1575 1491 TPG Internet Pty Ltd
10620 1622 1467 TVCABLE BOGOTA
23456 3121 1434 32-bit ASN transition
7552 1416 1409 Vietel Corporation
4755 1537 1369 TATA Communications formerly
7029 1580 1350 Windstream 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
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.155.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.159.0/24 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
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
41.222.79.0/24 36938 >>UNKNOWN<<
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
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 /12:233
/13:461 /14:796 /15:1413 /16:11945 /17:5943 /18:9960
/19:19583 /20:26662 /21:26700 /22:35757 /23:34404 /24:191586
/25:1115 /26:1320 /27:746 /28:159 /29:4 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2213 3580 bellsouth.net, inc.
18566 1868 1912 Covad Communications
23456 1532 3121 32-bit ASN transition
10620 1517 1622 TVCABLE BOGOTA
7029 1280 1580 Windstream Communications Inc
11492 1108 1154 Cable One
7011 1061 1186 Citizens Utilities
1785 1053 1821 PaeTec Communications, Inc.
22773 936 1442 Cox Communications, Inc.
30036 925 953 Mediacom Communications Corp
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:361 2:43 4:15 5:1 6:3 8:344
12:1959 13:1 14:521 15:13 16:3 17:5
20:10 23:31 24:1677 27:913 31:514 32:64
33:4 34:2 36:4 38:734 40:107 41:2367
42:50 44:3 46:1076 47:3 49:217 50:416
52:13 54:2 55:6 56:2 57:35 58:860
59:500 60:376 61:1170 62:1088 63:1931 64:4004
65:2306 66:3920 67:1924 68:1101 69:3125 70:779
71:373 72:1842 74:2439 75:330 76:339 77:865
78:708 79:472 80:1118 81:828 82:495 83:473
84:683 85:1078 86:494 87:849 88:337 89:1537
90:224 91:4054 92:525 93:1136 94:1347 95:878
96:418 97:267 98:927 99:37 101:79 103:240
106:79 107:37 108:75 109:1013 110:636 111:734
112:315 113:415 114:555 115:702 116:995 117:682
118:882 119:1197 120:331 121:688 122:1616 123:988
124:1319 125:1328 128:245 129:178 130:166 131:579
132:119 133:21 134:213 135:54 136:213 137:136
138:293 139:116 140:488 141:281 142:387 143:420
144:487 145:61 146:460 147:245 148:638 149:251
150:155 151:190 152:441 153:179 154:5 155:401
156:202 157:351 158:140 159:457 160:318 161:207
162:334 163:166 164:514 165:366 166:537 167:434
168:745 169:151 170:848 171:82 172:1 173:1647
174:628 175:395 176:155 177:241 178:1009 180:1004
181:25 182:600 183:242 184:339 185:1 186:1386
187:690 188:936 189:873 190:5123 192:5921 193:4985
194:3506 195:3045 196:1236 197:143 198:3580 199:4070
200:5502 201:1515 202:8402 203:8471 204:4254 205:2333
206:2668 207:2825 208:4008 209:3434 210:2705 211:1456
212:2083 213:1761 214:778 215:76 216:4831 217:1610
218:551 219:352 220:1220 221:514 222:352 223:248
End of report
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