[AusNOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Sat Nov 19 06:19:54 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 19 Nov, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 382518
Prefixes after maximum aggregation: 166913
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 187922
Total ASes present in the Internet Routing Table: 39344
Prefixes per ASN: 9.72
Origin-only ASes present in the Internet Routing Table: 32426
Origin ASes announcing only one prefix: 15480
Transit ASes present in the Internet Routing Table: 5275
Transit-only ASes present in the Internet Routing Table: 133
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: 1738
Unregistered ASNs in the Routing Table: 898
Number of 32-bit ASNs allocated by the RIRs: 1966
Number of 32-bit ASNs visible in the Routing Table: 1643
Prefixes from 32-bit ASNs in the Routing Table: 3811
Special use prefixes present in the Routing Table: 3
Prefixes being announced from unallocated address space: 85
Number of addresses announced to Internet: 2491183488
Equivalent to 148 /8s, 124 /16s and 113 /24s
Percentage of available address space announced: 67.2
Percentage of allocated address space announced: 67.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.6
Total number of prefixes smaller than registry allocations: 161662
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 95270
Total APNIC prefixes after maximum aggregation: 31163
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 91712
Unique aggregates announced from the APNIC address blocks: 38427
APNIC Region origin ASes present in the Internet Routing Table: 4610
APNIC Prefixes per ASN: 19.89
APNIC Region origin ASes announcing only one prefix: 1269
APNIC Region transit ASes present in the Internet Routing Table: 709
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: 110
Number of APNIC addresses announced to Internet: 630281568
Equivalent to 37 /8s, 145 /16s and 85 /24s
Percentage of available APNIC address space announced: 79.9
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: 145957
Total ARIN prefixes after maximum aggregation: 74487
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 118097
Unique aggregates announced from the ARIN address blocks: 48616
ARIN Region origin ASes present in the Internet Routing Table: 14749
ARIN Prefixes per ASN: 8.01
ARIN Region origin ASes announcing only one prefix: 5633
ARIN Region transit ASes present in the Internet Routing Table: 1567
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: 13
Number of ARIN addresses announced to Internet: 803282880
Equivalent to 47 /8s, 225 /16s and 31 /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: 92363
Total RIPE prefixes after maximum aggregation: 51229
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 84633
Unique aggregates announced from the RIPE address blocks: 54540
RIPE Region origin ASes present in the Internet Routing Table: 16120
RIPE Prefixes per ASN: 5.25
RIPE Region origin ASes announcing only one prefix: 7983
RIPE Region transit ASes present in the Internet Routing Table: 2536
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: 1143
Number of RIPE addresses announced to Internet: 492243904
Equivalent to 29 /8s, 87 /16s and 11 /24s
Percentage of available RIPE address space announced: 79.3
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: 36318
Total LACNIC prefixes after maximum aggregation: 7909
LACNIC Deaggregation factor: 4.59
Prefixes being announced from the LACNIC address blocks: 35776
Unique aggregates announced from the LACNIC address blocks: 18643
LACNIC Region origin ASes present in the Internet Routing Table: 1547
LACNIC Prefixes per ASN: 23.13
LACNIC Region origin ASes announcing only one prefix: 439
LACNIC Region transit ASes present in the Internet Routing Table: 283
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: 373
Number of LACNIC addresses announced to Internet: 93166208
Equivalent to 5 /8s, 141 /16s and 154 /24s
Percentage of available LACNIC address space announced: 61.7
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: 8616
Total AfriNIC prefixes after maximum aggregation: 2052
AfriNIC Deaggregation factor: 4.20
Prefixes being announced from the AfriNIC address blocks: 6675
Unique aggregates announced from the AfriNIC address blocks: 2049
AfriNIC Region origin ASes present in the Internet Routing Table: 499
AfriNIC Prefixes per ASN: 13.38
AfriNIC Region origin ASes announcing only one prefix: 156
AfriNIC Region transit ASes present in the Internet Routing Table: 108
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: 4
Number of AfriNIC addresses announced to Internet: 27745280
Equivalent to 1 /8s, 167 /16s and 92 /24s
Percentage of available AfriNIC address space announced: 41.3
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 11072 963 Korea Telecom (KIX)
17974 1647 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1627 303 87 TPG Internet Pty Ltd
4755 1528 378 169 TATA Communications formerly
7552 1394 1064 7 Vietel Corporation
9829 1166 989 28 BSNL National Internet Backbo
4808 1097 2073 310 CNCGROUP IP network: China169
9583 1094 80 494 Sify Limited
24560 965 343 218 Bharti Airtel Ltd., Telemedia
18101 952 119 148 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 3543 3814 219 bellsouth.net, inc.
7029 2906 1016 199 Windstream Communications Inc
18566 2093 383 177 Covad Communications
1785 1848 680 121 PaeTec Communications, Inc.
4323 1613 1077 387 Time Warner Telecom
20115 1596 1546 624 Charter Communications
22773 1500 2909 103 Cox Communications, Inc.
30036 1428 257 670 Mediacom Communications Corp
19262 1387 4683 401 Verizon Global Networks
7018 1312 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 1548 416 14 Corbina telecom
6830 646 1927 411 UPC Distribution Services
34984 601 112 188 BILISIM TELEKOM
20940 553 182 435 Akamai Technologies European
3320 512 8168 389 Deutsche Telekom AG
12479 484 596 9 Uni2 Autonomous System
3292 480 2106 408 TDC Tele Danmark
8866 462 133 26 Bulgarian Telecommunication C
8551 415 366 45 Bezeq International
31148 409 22 114 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 1706 316 157 TVCABLE BOGOTA
28573 1500 1044 70 NET Servicos de Comunicao S.A
8151 1448 2972 345 UniNet S.A. de C.V.
7303 1238 751 173 Telecom Argentina Stet-France
27947 602 72 86 Telconet S.A
22047 580 322 17 VTR PUNTO NET S.A.
6503 557 434 68 AVANTEL, S.A.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
3816 540 234 96 Empresa Nacional de Telecomun
11172 529 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
24863 778 146 36 LINKdotNET AS number
8452 685 446 12 TEDATA
15475 444 74 8 Nile Online
36992 283 415 21 Etisalat MISR
3741 281 939 230 The Internet Solution
15706 242 32 6 Sudatel Internet Exchange Aut
6713 235 519 14 Itissalat Al-MAGHRIB
29571 218 17 13 Ci Telecom Autonomous system
33776 212 13 14 Starcomms Nigeria Limited
12258 196 28 57 Vodacom Internet Company
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 3543 3814 219 bellsouth.net, inc.
7029 2906 1016 199 Windstream Communications Inc
4766 2506 11072 963 Korea Telecom (KIX)
18566 2093 383 177 Covad Communications
1785 1848 680 121 PaeTec Communications, Inc.
10620 1706 316 157 TVCABLE BOGOTA
17974 1647 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1627 303 87 TPG Internet Pty Ltd
4323 1613 1077 387 Time Warner Telecom
20115 1596 1546 624 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 2906 2707 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1848 1727 PaeTec Communications, Inc.
17974 1647 1611 PT TELEKOMUNIKASI INDONESIA
10620 1706 1549 TVCABLE BOGOTA
4766 2506 1543 Korea Telecom (KIX)
7545 1627 1540 TPG Internet Pty Ltd
8402 1548 1534 Corbina telecom
28573 1500 1430 NET Servicos de Comunicao S.A
22773 1500 1397 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
128.0.0.0/16 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
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 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
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
/13:465 /14:807 /15:1426 /16:12011 /17:6087 /18:10125
/19:20002 /20:27673 /21:27853 /22:37927 /23:35487 /24:198837
/25:1153 /26:1361 /27:758 /28:162 /29:4 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2535 2906 Windstream Communications Inc
6389 2185 3543 bellsouth.net, inc.
18566 2042 2093 Covad Communications
10620 1601 1706 TVCABLE BOGOTA
8402 1524 1548 Corbina telecom
30036 1388 1428 Mediacom Communications Corp
11492 1117 1154 Cable One
1785 1058 1848 PaeTec Communications, Inc.
7011 1050 1167 Citizens Utilities
22773 960 1500 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:411 2:487 4:15 5:1 6:3 8:355
12:1959 13:1 14:551 15:11 16:3 17:7
20:9 23:63 24:1688 27:1027 31:697 32:65
33:2 34:2 36:4 38:762 39:1 40:109
41:2689 42:61 43:1 44:3 46:1051 47:3
49:295 50:455 52:13 55:8 56:2 57:49
58:927 59:479 60:360 61:1143 62:1095 63:1965
64:4075 65:2301 66:4334 67:2000 68:1170 69:3146
70:904 71:384 72:1816 74:2640 75:429 76:320
77:892 78:891 79:439 80:1123 81:838 82:513
83:518 84:622 85:1150 86:405 87:907 88:357
89:1597 90:235 91:4274 92:539 93:1446 94:1306
95:1115 96:428 97:285 98:805 99:37 101:240
103:489 106:1 107:94 108:81 109:1188 110:674
111:805 112:363 113:497 114:595 115:715 116:879
117:720 118:894 119:1271 120:353 121:670 122:1576
123:1028 124:1367 125:1352 128:247 129:184 130:176
131:630 132:155 133:21 134:228 135:54 136:212
137:146 138:285 139:122 140:492 141:251 142:389
143:400 144:489 145:65 146:470 147:219 148:632
149:263 150:161 151:192 152:449 153:172 154:7
155:390 156:208 157:358 158:158 159:494 160:330
161:215 162:368 163:175 164:511 165:369 166:542
167:444 168:823 169:145 170:879 171:87 172:4
173:1745 174:592 175:432 176:297 177:393 178:1117
180:1147 181:39 182:656 183:239 184:394 185:1
186:1409 187:779 188:980 189:1159 190:5209 192:5933
193:5038 194:3544 195:3108 196:1276 197:166 198:3623
199:4216 200:5533 201:1704 202:8546 203:8549 204:4307
205:2398 206:2592 207:2820 208:4030 209:3577 210:2740
211:1465 212:2010 213:1807 214:815 215:97 216:4923
217:1601 218:577 219:339 220:1253 221:520 222:327
223:279
End of report
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