[lacnog] Weekly Routing Table Report
Routing Analysis Role Account
cscora en apnic.net
Vie Dic 10 18:35:54 BRST 2010
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 en lists.apnic.net
For historical data, please see http://thyme.rand.apnic.net.
If you have any comments please contact Philip Smith <pfs en cisco.com>.
Routing Table Report 04:00 +10GMT Sat 11 Dec, 2010
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 338487
Prefixes after maximum aggregation: 152765
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 166476
Total ASes present in the Internet Routing Table: 35460
Prefixes per ASN: 9.55
Origin-only ASes present in the Internet Routing Table: 30540
Origin ASes announcing only one prefix: 14921
Transit ASes present in the Internet Routing Table: 4920
Transit-only ASes present in the Internet Routing Table: 118
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 31
Max AS path prepend of ASN (36992) 29
Prefixes from unregistered ASNs in the Routing Table: 684
Unregistered ASNs in the Routing Table: 323
Number of 32-bit ASNs allocated by the RIRs: 939
Prefixes from 32-bit ASNs in the Routing Table: 4
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 193
Number of addresses announced to Internet: 2317458720
Equivalent to 138 /8s, 33 /16s and 157 /24s
Percentage of available address space announced: 62.5
Percentage of allocated address space announced: 64.6
Percentage of available address space allocated: 96.8
Percentage of address space in use by end-sites: 86.6
Total number of prefixes smaller than registry allocations: 139176
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 83574
Total APNIC prefixes after maximum aggregation: 28342
APNIC Deaggregation factor: 2.95
Prefixes being announced from the APNIC address blocks: 80522
Unique aggregates announced from the APNIC address blocks: 34882
APNIC Region origin ASes present in the Internet Routing Table: 4270
APNIC Prefixes per ASN: 18.86
APNIC Region origin ASes announcing only one prefix: 1209
APNIC Region transit ASes present in the Internet Routing Table: 691
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 20
Number of APNIC addresses announced to Internet: 571740448
Equivalent to 34 /8s, 20 /16s and 17 /24s
Percentage of available APNIC address space announced: 77.5
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
55296-56319, 131072-132095
APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 42/8, 43/8, 49/8,
58/8, 59/8, 60/8, 61/8, 101/8, 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: 136853
Total ARIN prefixes after maximum aggregation: 69866
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 107840
Unique aggregates announced from the ARIN address blocks: 43908
ARIN Region origin ASes present in the Internet Routing Table: 14068
ARIN Prefixes per ASN: 7.67
ARIN Region origin ASes announcing only one prefix: 5390
ARIN Region transit ASes present in the Internet Routing Table: 1494
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 741824128
Equivalent to 44 /8s, 55 /16s and 86 /24s
Percentage of available ARIN address space announced: 62.3
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, 47/8, 48/8, 50/8, 52/8, 54/8,
55/8, 56/8, 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,
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: 79084
Total RIPE prefixes after maximum aggregation: 45393
RIPE Deaggregation factor: 1.74
Prefixes being announced from the RIPE address blocks: 72578
Unique aggregates announced from the RIPE address blocks: 47126
RIPE Region origin ASes present in the Internet Routing Table: 15108
RIPE Prefixes per ASN: 4.80
RIPE Region origin ASes announcing only one prefix: 7748
RIPE Region transit ASes present in the Internet Routing Table: 2336
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 450700800
Equivalent to 26 /8s, 221 /16s and 38 /24s
Percentage of available RIPE address space announced: 74.6
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, 196608-197631
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, 193/8, 194/8, 195/8, 212/8, 213/8,
217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 31053
Total LACNIC prefixes after maximum aggregation: 7139
LACNIC Deaggregation factor: 4.35
Prefixes being announced from the LACNIC address blocks: 29788
Unique aggregates announced from the LACNIC address blocks: 15473
LACNIC Region origin ASes present in the Internet Routing Table: 1408
LACNIC Prefixes per ASN: 21.16
LACNIC Region origin ASes announcing only one prefix: 439
LACNIC Region transit ASes present in the Internet Routing Table: 253
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 78606336
Equivalent to 4 /8s, 175 /16s and 112 /24s
Percentage of available LACNIC address space announced: 58.6
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 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: 7683
Total AfriNIC prefixes after maximum aggregation: 1907
AfriNIC Deaggregation factor: 4.03
Prefixes being announced from the AfriNIC address blocks: 5972
Unique aggregates announced from the AfriNIC address blocks: 1792
AfriNIC Region origin ASes present in the Internet Routing Table: 426
AfriNIC Prefixes per ASN: 14.02
AfriNIC Region origin ASes announcing only one prefix: 135
AfriNIC Region transit ASes present in the Internet Routing Table: 92
Average AfriNIC Region AS path length visible: 5.3
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 21769216
Equivalent to 1 /8s, 76 /16s and 44 /24s
Percentage of available AfriNIC address space announced: 43.3
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1874 9453 520 Korea Telecom (KIX)
7545 1573 299 79 TPG Internet Pty Ltd
4755 1422 648 141 TATA Communications formerly
17974 1331 459 27 PT TELEKOMUNIKASI INDONESIA
17488 1102 158 113 Hathway IP Over Cable Interne
9583 1043 107 487 Sify Limited
24560 1035 309 170 Bharti Airtel Ltd., Telemedia
4808 990 1715 271 CNCGROUP IP network: China169
18101 939 116 138 Reliance Infocom Ltd Internet
9829 838 696 31 BSNL National Internet Backbo
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 3736 3887 269 bellsouth.net, inc.
4323 2641 1077 400 Time Warner Telecom
19262 1834 4869 282 Verizon Global Networks
1785 1795 697 132 PaeTec Communications, Inc.
20115 1512 1531 640 Charter Communications
6478 1427 289 75 AT&T Worldnet Services
7018 1360 5652 873 AT&T WorldNet Services
2386 1308 571 926 AT&T Data Communications Serv
22773 1261 2864 74 Cox Communications, Inc.
11492 1256 234 73 Cable One
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
6830 502 1763 309 UPC Distribution Services
3292 443 2010 385 TDC Tele Danmark
8866 435 137 24 Bulgarian Telecommunication C
9121 431 1690 29 TTnet Autonomous System
34984 422 92 191 BILISIM TELEKOM
9198 414 202 13 Kazakhtelecom Data Network Ad
8551 402 353 46 Bezeq International
702 397 1864 311 UUNET - Commercial IP service
12479 397 577 6 Uni2 Autonomous System
3301 385 1696 341 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
8151 1351 2649 369 UniNet S.A. de C.V.
10620 1344 250 156 TVCABLE BOGOTA
28573 1209 932 79 NET Servicos de Comunicao S.A
6503 1175 355 80 AVANTEL, S.A.
7303 830 441 106 Telecom Argentina Stet-France
14420 584 49 88 CORPORACION NACIONAL DE TELEC
22047 563 310 15 VTR PUNTO NET S.A.
3816 492 214 100 Empresa Nacional de Telecomun
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 452 32 30 Telefonica del Sur S.A.
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 1109 445 10 TEDATA
24863 746 147 39 LINKdotNET AS number
36992 657 274 160 Etisalat MISR
3741 263 986 225 The Internet Solution
6713 203 199 12 Itissalat Al-MAGHRIB
29571 199 19 11 Ci Telecom Autonomous system
24835 198 78 10 RAYA Telecom - Egypt
2018 196 277 64 Tertiary Education Network
33776 184 12 14 Starcomms Nigeria Limited
16637 162 440 89 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 3736 3887 269 bellsouth.net, inc.
4323 2641 1077 400 Time Warner Telecom
4766 1874 9453 520 Korea Telecom (KIX)
19262 1834 4869 282 Verizon Global Networks
1785 1795 697 132 PaeTec Communications, Inc.
7545 1573 299 79 TPG Internet Pty Ltd
20115 1512 1531 640 Charter Communications
6478 1427 289 75 AT&T Worldnet Services
4755 1422 648 141 TATA Communications formerly
7018 1360 5652 873 AT&T WorldNet Services
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 2641 2241 Time Warner Telecom
1785 1795 1663 PaeTec Communications, Inc.
19262 1834 1552 Verizon Global Networks
7545 1573 1494 TPG Internet Pty Ltd
4766 1874 1354 Korea Telecom (KIX)
6478 1427 1352 AT&T Worldnet Services
17974 1331 1304 PT TELEKOMUNIKASI INDONESIA
4755 1422 1281 TATA Communications formerly
10620 1344 1188 TVCABLE BOGOTA
22773 1261 1187 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
46164 UNALLOCATED 4.23.88.0/24 7018 AT&T WorldNet Servic
46164 UNALLOCATED 4.23.89.0/24 7018 AT&T WorldNet Servic
46164 UNALLOCATED 4.23.92.0/23 7018 AT&T WorldNet Servic
46164 UNALLOCATED 4.23.94.0/23 7018 AT&T WorldNet Servic
46164 UNALLOCATED 4.38.0.0/21 7018 AT&T WorldNet Servic
46164 UNALLOCATED 4.38.8.0/21 7018 AT&T WorldNet Servic
46164 UNALLOCATED 4.43.50.0/24 7018 AT&T WorldNet Servic
46164 UNALLOCATED 4.43.51.0/24 7018 AT&T WorldNet Servic
46164 UNALLOCATED 4.67.96.0/21 7018 AT&T WorldNet Servic
46164 UNALLOCATED 4.67.104.0/21 7018 AT&T WorldNet Servic
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
5.0.0.0/16 12654 RIPE NCC RIS Project
5.1.0.0/21 12654 RIPE NCC RIS Project
5.1.24.0/24 12654 RIPE NCC RIS Project
24.129.192.0/19 7922 Continental Cablevision
37.0.0.0/16 12654 RIPE NCC RIS Project
37.1.0.0/21 12654 RIPE NCC RIS Project
37.1.24.0/24 12654 RIPE NCC RIS Project
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
46.164.128.0/18 21219 Datacom Autonomous System
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 /9:10 /10:25 /11:70 /12:210
/13:429 /14:751 /15:1338 /16:11355 /17:5518 /18:9199
/19:18627 /20:23904 /21:24216 /22:31803 /23:30778 /24:177411
/25:997 /26:1075 /27:572 /28:158 /29:12 /30:2
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2307 3736 bellsouth.net, inc.
4323 1430 2641 Time Warner Telecom
6478 1384 1427 AT&T Worldnet Services
10620 1236 1344 TVCABLE BOGOTA
11492 1213 1256 Cable One
18566 1070 1089 Covad Communications
7011 1069 1172 Citizens Utilities
1785 1068 1795 PaeTec Communications, Inc.
8452 972 1109 TEDATA
6503 960 1175 AVANTEL, S.A.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:128 2:16 4:13 5:1 8:316 12:2029
13:6 14:88 15:17 16:3 17:8 20:9
24:1423 27:488 32:61 33:6 34:2 36:1
37:1 38:718 40:101 41:2635 42:1 44:3
46:323 47:4 49:38 50:17 52:12 55:6
56:2 57:29 58:856 59:515 60:418 61:1127
62:1025 63:1938 64:3713 65:2319 66:4068 67:1758
68:1002 69:2825 70:716 71:389 72:1947 74:2279
75:287 76:319 77:870 78:738 79:437 80:1059
81:803 82:511 83:445 84:632 85:1040 86:488
87:705 88:406 89:1589 90:137 91:3309 92:457
93:1018 94:1098 95:698 96:406 97:246 98:698
99:33 101:3 107:2 108:69 109:800 110:469
111:668 112:309 113:323 114:482 115:676 116:1000
117:664 118:608 119:1007 120:198 121:731 122:1572
123:1031 124:1224 125:1232 128:232 129:153 130:170
131:567 132:230 133:20 134:208 135:47 136:213
137:148 138:289 139:110 140:477 141:196 142:352
143:516 144:487 145:54 146:424 147:179 148:641
149:326 150:150 151:230 152:295 153:172 154:3
155:367 156:166 157:339 158:126 159:369 160:311
161:197 162:276 163:165 164:434 165:334 166:470
167:420 168:737 169:151 170:723 171:67 172:2
173:1132 174:466 175:274 176:1 178:641 180:734
182:532 183:241 184:190 186:893 187:759 188:875
189:1009 190:4265 192:5786 193:4802 194:3468 195:2894
196:1205 197:1 198:3533 199:3670 200:5539 201:1582
202:8246 203:8368 204:4045 205:2344 206:2517 207:2978
208:3851 209:3477 210:2543 211:1314 212:1875 213:1730
214:727 215:62 216:4795 217:1616 218:522 219:403
220:1207 221:442 222:341 223:76
End of report
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