[AusNOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Sat Nov 12 06:18:28 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 12 Nov, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 381658
Prefixes after maximum aggregation: 166539
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 187635
Total ASes present in the Internet Routing Table: 39286
Prefixes per ASN: 9.71
Origin-only ASes present in the Internet Routing Table: 32382
Origin ASes announcing only one prefix: 15485
Transit ASes present in the Internet Routing Table: 5290
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: 1677
Unregistered ASNs in the Routing Table: 881
Number of 32-bit ASNs allocated by the RIRs: 1940
Number of 32-bit ASNs visible in the Routing Table: 1614
Prefixes from 32-bit ASNs in the Routing Table: 3721
Special use prefixes present in the Routing Table: 3
Prefixes being announced from unallocated address space: 87
Number of addresses announced to Internet: 2490142976
Equivalent to 148 /8s, 108 /16s and 145 /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: 161365
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 95008
Total APNIC prefixes after maximum aggregation: 31143
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 91456
Unique aggregates announced from the APNIC address blocks: 38380
APNIC Region origin ASes present in the Internet Routing Table: 4602
APNIC Prefixes per ASN: 19.87
APNIC Region origin ASes announcing only one prefix: 1269
APNIC Region transit ASes present in the Internet Routing Table: 720
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 107
Number of APNIC addresses announced to Internet: 629934432
Equivalent to 37 /8s, 140 /16s and 9 /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: 146101
Total ARIN prefixes after maximum aggregation: 74287
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 118152
Unique aggregates announced from the ARIN address blocks: 48520
ARIN Region origin ASes present in the Internet Routing Table: 14740
ARIN Prefixes per ASN: 8.02
ARIN Region origin ASes announcing only one prefix: 5637
ARIN Region transit ASes present in the Internet Routing Table: 1565
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: 804207808
Equivalent to 47 /8s, 239 /16s and 60 /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: 92019
Total RIPE prefixes after maximum aggregation: 51066
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 84487
Unique aggregates announced from the RIPE address blocks: 54587
RIPE Region origin ASes present in the Internet Routing Table: 16107
RIPE Prefixes per ASN: 5.25
RIPE Region origin ASes announcing only one prefix: 7977
RIPE Region transit ASes present in the Internet Routing Table: 2539
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: 1119
Number of RIPE addresses announced to Internet: 491921856
Equivalent to 29 /8s, 82 /16s and 33 /24s
Percentage of available RIPE address space announced: 79.2
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: 36135
Total LACNIC prefixes after maximum aggregation: 7921
LACNIC Deaggregation factor: 4.56
Prefixes being announced from the LACNIC address blocks: 35567
Unique aggregates announced from the LACNIC address blocks: 18567
LACNIC Region origin ASes present in the Internet Routing Table: 1549
LACNIC Prefixes per ASN: 22.96
LACNIC Region origin ASes announcing only one prefix: 446
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: 372
Number of LACNIC addresses announced to Internet: 92919936
Equivalent to 5 /8s, 137 /16s and 216 /24s
Percentage of available LACNIC address space announced: 61.5
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: 8487
Total AfriNIC prefixes after maximum aggregation: 2043
AfriNIC Deaggregation factor: 4.15
Prefixes being announced from the AfriNIC address blocks: 6576
Unique aggregates announced from the AfriNIC address blocks: 2022
AfriNIC Region origin ASes present in the Internet Routing Table: 496
AfriNIC Prefixes per ASN: 13.26
AfriNIC Region origin ASes announcing only one prefix: 156
AfriNIC Region transit ASes present in the Internet Routing Table: 106
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: 27687168
Equivalent to 1 /8s, 166 /16s and 121 /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 2510 11108 968 Korea Telecom (KIX)
17974 1649 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1625 303 88 TPG Internet Pty Ltd
4755 1544 377 172 TATA Communications formerly
7552 1394 1064 7 Vietel Corporation
9829 1166 989 28 BSNL National Internet Backbo
9583 1116 83 512 Sify Limited
4808 1093 2095 313 CNCGROUP IP network: China169
24560 964 343 218 Bharti Airtel Ltd., Telemedia
18101 953 119 149 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 3544 3814 219 bellsouth.net, inc.
7029 2918 1016 199 Windstream Communications Inc
18566 2093 383 177 Covad Communications
1785 1847 680 122 PaeTec Communications, Inc.
4323 1622 1077 387 Time Warner Telecom
20115 1595 1545 624 Charter Communications
22773 1495 2909 102 Cox Communications, Inc.
30036 1415 255 671 Mediacom Communications Corp
19262 1395 4728 400 Verizon Global Networks
7018 1314 7029 862 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 1519 416 14 Corbina telecom
6830 646 1927 411 UPC Distribution Services
34984 596 110 184 BILISIM TELEKOM
20940 551 182 433 Akamai Technologies European
3320 503 8168 388 Deutsche Telekom AG
3292 479 2074 407 TDC Tele Danmark
12479 479 596 9 Uni2 Autonomous System
8866 463 133 26 Bulgarian Telecommunication C
31148 408 22 114 FreeNet ISP
8551 402 354 43 Bezeq International
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 1490 1043 79 NET Servicos de Comunicao S.A
8151 1446 2937 346 UniNet S.A. de C.V.
7303 1238 751 173 Telecom Argentina Stet-France
27947 591 72 84 Telconet S.A
22047 580 322 17 VTR PUNTO NET S.A.
6503 566 434 68 AVANTEL, S.A.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
3816 539 234 96 Empresa Nacional de Telecomun
11172 525 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 716 146 36 LINKdotNET AS number
8452 665 446 12 TEDATA
15475 444 74 8 Nile Online
36992 285 415 20 Etisalat MISR
3741 281 939 230 The Internet Solution
15706 240 32 6 Sudatel Internet Exchange Aut
33776 239 13 8 Starcomms Nigeria Limited
6713 235 519 14 Itissalat Al-MAGHRIB
29571 218 17 13 Ci Telecom Autonomous system
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 3544 3814 219 bellsouth.net, inc.
7029 2918 1016 199 Windstream Communications Inc
4766 2510 11108 968 Korea Telecom (KIX)
18566 2093 383 177 Covad Communications
1785 1847 680 122 PaeTec Communications, Inc.
10620 1706 316 157 TVCABLE BOGOTA
17974 1649 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1625 303 88 TPG Internet Pty Ltd
4323 1622 1077 387 Time Warner Telecom
20115 1595 1545 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 2918 2719 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1847 1725 PaeTec Communications, Inc.
17974 1649 1613 PT TELEKOMUNIKASI INDONESIA
10620 1706 1549 TVCABLE BOGOTA
4766 2510 1542 Korea Telecom (KIX)
7545 1625 1537 TPG Internet Pty Ltd
8402 1519 1505 Corbina telecom
28573 1490 1411 NET Servicos de Comunicao S.A
22773 1495 1393 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 /14:808 /15:1422 /16:12006 /17:6064 /18:10089
/19:19963 /20:27615 /21:27723 /22:37556 /23:35208 /24:198912
/25:1154 /26:1364 /27:759 /28:166 /29:4 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2548 2918 Windstream Communications Inc
6389 2185 3544 bellsouth.net, inc.
18566 2042 2093 Covad Communications
10620 1601 1706 TVCABLE BOGOTA
8402 1495 1519 Corbina telecom
30036 1375 1415 Mediacom Communications Corp
11492 1117 1154 Cable One
1785 1057 1847 PaeTec Communications, Inc.
7011 1051 1168 Citizens Utilities
22773 958 1495 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:408 2:484 4:15 5:1 6:3 8:356
12:1966 13:1 14:547 15:11 16:3 17:7
20:9 23:63 24:1683 27:1031 31:675 32:65
33:2 34:2 36:4 38:756 39:1 40:110
41:2681 42:59 43:1 44:3 46:1050 47:3
49:298 50:449 52:13 55:8 56:2 57:47
58:920 59:496 60:362 61:1131 62:1094 63:1970
64:4065 65:2302 66:4319 67:2019 68:1174 69:3142
70:905 71:387 72:1820 74:2633 75:430 76:319
77:881 78:887 79:479 80:1133 81:836 82:516
83:518 84:621 85:1154 86:400 87:931 88:356
89:1591 90:235 91:4257 92:536 93:1553 94:1303
95:1089 96:427 97:286 98:943 99:37 101:233
103:459 106:7 107:91 108:76 109:1184 110:671
111:807 112:362 113:480 114:623 115:715 116:881
117:722 118:889 119:1266 120:345 121:681 122:1574
123:1019 124:1353 125:1355 128:246 129:184 130:164
131:616 132:151 133:21 134:221 135:54 136:213
137:142 138:287 139:121 140:494 141:253 142:389
143:401 144:495 145:64 146:470 147:219 148:638
149:270 150:164 151:194 152:449 153:172 154:7
155:387 156:208 157:361 158:155 159:489 160:331
161:214 162:374 163:173 164:506 165:368 166:544
167:443 168:820 169:145 170:881 171:87 172:4
173:1742 174:702 175:432 176:297 177:367 178:1100
180:1145 181:38 182:652 183:236 184:393 185:1
186:1401 187:774 188:963 189:1157 190:5188 192:5923
193:5050 194:3554 195:3109 196:1268 197:170 198:3617
199:4206 200:5475 201:1704 202:8553 203:8538 204:4311
205:2370 206:2668 207:2816 208:4025 209:3584 210:2711
211:1463 212:2074 213:1804 214:777 215:96 216:4930
217:1601 218:560 219:343 220:1257 221:515 222:324
223:272
End of report
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