[AusNOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Sat Nov 5 06:17:44 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 05 Nov, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 380959
Prefixes after maximum aggregation: 166564
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 187114
Total ASes present in the Internet Routing Table: 39222
Prefixes per ASN: 9.71
Origin-only ASes present in the Internet Routing Table: 32367
Origin ASes announcing only one prefix: 15483
Transit ASes present in the Internet Routing Table: 5264
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: 1628
Unregistered ASNs in the Routing Table: 862
Number of 32-bit ASNs allocated by the RIRs: 1925
Number of 32-bit ASNs visible in the Routing Table: 1591
Prefixes from 32-bit ASNs in the Routing Table: 3686
Special use prefixes present in the Routing Table: 3
Prefixes being announced from unallocated address space: 86
Number of addresses announced to Internet: 2489977408
Equivalent to 148 /8s, 106 /16s and 10 /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: 160771
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 94863
Total APNIC prefixes after maximum aggregation: 31059
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 91315
Unique aggregates announced from the APNIC address blocks: 38279
APNIC Region origin ASes present in the Internet Routing Table: 4595
APNIC Prefixes per ASN: 19.87
APNIC Region origin ASes announcing only one prefix: 1270
APNIC Region transit ASes present in the Internet Routing Table: 716
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: 101
Number of APNIC addresses announced to Internet: 629651296
Equivalent to 37 /8s, 135 /16s and 183 /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: 145925
Total ARIN prefixes after maximum aggregation: 74475
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 117809
Unique aggregates announced from the ARIN address blocks: 48321
ARIN Region origin ASes present in the Internet Routing Table: 14739
ARIN Prefixes per ASN: 7.99
ARIN Region origin ASes announcing only one prefix: 5639
ARIN Region transit ASes present in the Internet Routing Table: 1559
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: 804645888
Equivalent to 47 /8s, 245 /16s and 236 /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: 91828
Total RIPE prefixes after maximum aggregation: 51035
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 84299
Unique aggregates announced from the RIPE address blocks: 54500
RIPE Region origin ASes present in the Internet Routing Table: 16084
RIPE Prefixes per ASN: 5.24
RIPE Region origin ASes announcing only one prefix: 7968
RIPE Region transit ASes present in the Internet Routing Table: 2531
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: 1108
Number of RIPE addresses announced to Internet: 491707840
Equivalent to 29 /8s, 78 /16s and 221 /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: 35936
Total LACNIC prefixes after maximum aggregation: 7912
LACNIC Deaggregation factor: 4.54
Prefixes being announced from the LACNIC address blocks: 35352
Unique aggregates announced from the LACNIC address blocks: 18553
LACNIC Region origin ASes present in the Internet Routing Table: 1545
LACNIC Prefixes per ASN: 22.88
LACNIC Region origin ASes announcing only one prefix: 446
LACNIC Region transit ASes present in the Internet Routing Table: 281
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: 366
Number of LACNIC addresses announced to Internet: 92827520
Equivalent to 5 /8s, 136 /16s and 111 /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: 8537
Total AfriNIC prefixes after maximum aggregation: 2007
AfriNIC Deaggregation factor: 4.25
Prefixes being announced from the AfriNIC address blocks: 6608
Unique aggregates announced from the AfriNIC address blocks: 1974
AfriNIC Region origin ASes present in the Internet Routing Table: 491
AfriNIC Prefixes per ASN: 13.46
AfriNIC Region origin ASes announcing only one prefix: 160
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: 27570432
Equivalent to 1 /8s, 164 /16s and 177 /24s
Percentage of available AfriNIC address space announced: 41.1
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 2514 11129 974 Korea Telecom (KIX)
17974 1630 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1614 303 87 TPG Internet Pty Ltd
4755 1548 637 174 TATA Communications formerly
7552 1394 1064 7 Vietel Corporation
9829 1166 989 28 BSNL National Internet Backbo
9583 1092 80 500 Sify Limited
4808 1090 2103 312 CNCGROUP IP network: China169
24560 964 343 218 Bharti Airtel Ltd., Telemedia
18101 954 135 150 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 3547 3814 223 bellsouth.net, inc.
7029 2337 1016 198 Windstream Communications Inc
18566 2094 383 177 Covad Communications
1785 1844 680 122 PaeTec Communications, Inc.
4323 1623 1078 389 Time Warner Telecom
20115 1596 1547 621 Charter Communications
22773 1462 2907 100 Cox Communications, Inc.
30036 1402 254 671 Mediacom Communications Corp
19262 1395 4728 400 Verizon Global Networks
7018 1317 7045 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 1449 416 14 Corbina telecom
6830 650 1927 414 UPC Distribution Services
34984 596 110 184 BILISIM TELEKOM
12479 545 628 51 Uni2 Autonomous System
20940 542 179 425 Akamai Technologies European
3320 507 8169 387 Deutsche Telekom AG
3292 481 2074 406 TDC Tele Danmark
8866 461 133 26 Bulgarian Telecommunication C
31148 406 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 1699 314 156 TVCABLE BOGOTA
28573 1479 1043 79 NET Servicos de Comunicao S.A
8151 1430 2937 346 UniNet S.A. de C.V.
7303 1236 751 171 Telecom Argentina Stet-France
27947 591 72 84 Telconet S.A
22047 580 322 17 VTR PUNTO NET S.A.
6503 565 434 68 AVANTEL, S.A.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
3816 537 233 95 Empresa Nacional de Telecomun
11172 524 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 801 146 36 LINKdotNET AS number
8452 652 446 12 TEDATA
15475 443 74 8 Nile Online
36992 285 415 21 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 3547 3814 223 bellsouth.net, inc.
4766 2514 11129 974 Korea Telecom (KIX)
7029 2337 1016 198 Windstream Communications Inc
18566 2094 383 177 Covad Communications
1785 1844 680 122 PaeTec Communications, Inc.
10620 1699 314 156 TVCABLE BOGOTA
17974 1630 511 36 PT TELEKOMUNIKASI INDONESIA
4323 1623 1078 389 Time Warner Telecom
7545 1614 303 87 TPG Internet Pty Ltd
20115 1596 1547 621 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 2337 2139 Windstream Communications Inc
18566 2094 1917 Covad Communications
1785 1844 1722 PaeTec Communications, Inc.
17974 1630 1594 PT TELEKOMUNIKASI INDONESIA
10620 1699 1543 TVCABLE BOGOTA
4766 2514 1540 Korea Telecom (KIX)
7545 1614 1527 TPG Internet Pty Ltd
8402 1449 1435 Corbina telecom
28573 1479 1400 NET Servicos de Comunicao S.A
7552 1394 1387 Vietel Corporation
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 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 /12:236
/13:465 /14:809 /15:1422 /16:12027 /17:6052 /18:10085
/19:19946 /20:27559 /21:27705 /22:37171 /23:35262 /24:198635
/25:1153 /26:1357 /27:761 /28:166 /29:4 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2187 3547 bellsouth.net, inc.
18566 2043 2094 Covad Communications
7029 2005 2337 Windstream Communications Inc
10620 1594 1699 TVCABLE BOGOTA
8402 1424 1449 Corbina telecom
30036 1363 1402 Mediacom Communications Corp
11492 1117 1155 Cable One
1785 1057 1844 PaeTec Communications, Inc.
7011 1051 1169 Citizens Utilities
22773 950 1462 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:416 2:476 4:15 5:1 6:3 8:361
12:1955 13:1 14:541 15:11 16:3 17:7
20:9 23:58 24:1682 27:1024 31:673 32:65
33:2 34:2 36:4 38:758 40:110 41:2691
42:55 44:3 46:1025 47:3 49:299 50:443
52:13 55:6 56:2 57:47 58:902 59:497
60:361 61:1115 62:1086 63:1966 64:4057 65:2302
66:4278 67:2003 68:1163 69:3184 70:882 71:384
72:1802 74:2608 75:388 76:316 77:963 78:874
79:480 80:1131 81:844 82:520 83:528 84:619
85:1153 86:398 87:976 88:356 89:1593 90:235
91:4255 92:535 93:1536 94:1300 95:1088 96:428
97:286 98:936 99:37 101:225 103:432 106:70
107:84 108:72 109:1155 110:661 111:797 112:341
113:486 114:620 115:715 116:882 117:723 118:877
119:1265 120:344 121:695 122:1572 123:1007 124:1352
125:1355 128:245 129:189 130:164 131:627 132:148
133:21 134:221 135:54 136:212 137:142 138:286
139:122 140:489 141:317 142:389 143:410 144:491
145:64 146:465 147:220 148:641 149:267 150:169
151:194 152:447 153:178 154:7 155:385 156:208
157:361 158:155 159:485 160:333 161:214 162:371
163:173 164:511 165:369 166:540 167:439 168:820
169:145 170:880 171:86 172:4 173:1708 174:679
175:417 176:278 177:369 178:1082 180:1139 181:38
182:653 183:221 184:387 185:1 186:1328 187:764
188:1061 189:1147 190:5167 192:5931 193:5050 194:3558
195:3112 196:1265 197:167 198:3629 199:4175 200:5513
201:1695 202:8573 203:8478 204:4315 205:2370 206:2674
207:2820 208:4037 209:3580 210:2720 211:1457 212:2083
213:1780 214:813 215:95 216:4918 217:1603 218:564
219:342 220:1254 221:517 222:322 223:269
End of report
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