[lacnog] Weekly Routing Table Report
Routing Analysis Role Account
cscora en apnic.net
Vie Dic 17 16:26:09 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 18 Dec, 2010
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 338766
Prefixes after maximum aggregation: 153020
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 166625
Total ASes present in the Internet Routing Table: 35498
Prefixes per ASN: 9.54
Origin-only ASes present in the Internet Routing Table: 30573
Origin ASes announcing only one prefix: 14921
Transit ASes present in the Internet Routing Table: 4925
Transit-only ASes present in the Internet Routing Table: 119
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: 325
Unregistered ASNs in the Routing Table: 127
Number of 32-bit ASNs allocated by the RIRs: 960
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: 191
Number of addresses announced to Internet: 2341188448
Equivalent to 139 /8s, 139 /16s and 179 /24s
Percentage of available address space announced: 63.2
Percentage of allocated address space announced: 65.2
Percentage of available address space allocated: 96.8
Percentage of address space in use by end-sites: 86.7
Total number of prefixes smaller than registry allocations: 139416
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 83366
Total APNIC prefixes after maximum aggregation: 28387
APNIC Deaggregation factor: 2.94
Prefixes being announced from the APNIC address blocks: 80309
Unique aggregates announced from the APNIC address blocks: 34993
APNIC Region origin ASes present in the Internet Routing Table: 4272
APNIC Prefixes per ASN: 18.80
APNIC Region origin ASes announcing only one prefix: 1204
APNIC Region transit ASes present in the Internet Routing Table: 693
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 20
Number of APNIC addresses announced to Internet: 575398688
Equivalent to 34 /8s, 75 /16s and 227 /24s
Percentage of available APNIC address space announced: 77.9
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: 136919
Total ARIN prefixes after maximum aggregation: 69999
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 108053
Unique aggregates announced from the ARIN address blocks: 43916
ARIN Region origin ASes present in the Internet Routing Table: 14079
ARIN Prefixes per ASN: 7.67
ARIN Region origin ASes announcing only one prefix: 5392
ARIN Region transit ASes present in the Internet Routing Table: 1489
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 743817600
Equivalent to 44 /8s, 85 /16s and 193 /24s
Percentage of available ARIN address space announced: 62.4
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: 79524
Total RIPE prefixes after maximum aggregation: 45494
RIPE Deaggregation factor: 1.75
Prefixes being announced from the RIPE address blocks: 73010
Unique aggregates announced from the RIPE address blocks: 47168
RIPE Region origin ASes present in the Internet Routing Table: 15132
RIPE Prefixes per ASN: 4.82
RIPE Region origin ASes announcing only one prefix: 7752
RIPE Region transit ASes present in the Internet Routing Table: 2342
Average RIPE Region AS path length visible: 4.5
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 451844992
Equivalent to 26 /8s, 238 /16s and 155 /24s
Percentage of available RIPE address space announced: 74.8
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: 30995
Total LACNIC prefixes after maximum aggregation: 7106
LACNIC Deaggregation factor: 4.36
Prefixes being announced from the LACNIC address blocks: 29743
Unique aggregates announced from the LACNIC address blocks: 15445
LACNIC Region origin ASes present in the Internet Routing Table: 1404
LACNIC Prefixes per ASN: 21.18
LACNIC Region origin ASes announcing only one prefix: 436
LACNIC Region transit ASes present in the Internet Routing Table: 252
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 78639552
Equivalent to 4 /8s, 175 /16s and 241 /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: 7724
Total AfriNIC prefixes after maximum aggregation: 1916
AfriNIC Deaggregation factor: 4.03
Prefixes being announced from the AfriNIC address blocks: 6024
Unique aggregates announced from the AfriNIC address blocks: 1777
AfriNIC Region origin ASes present in the Internet Routing Table: 430
AfriNIC Prefixes per ASN: 14.01
AfriNIC Region origin ASes announcing only one prefix: 137
AfriNIC Region transit ASes present in the Internet Routing Table: 93
Average AfriNIC Region AS path length visible: 5.3
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 21619712
Equivalent to 1 /8s, 73 /16s and 228 /24s
Percentage of available AfriNIC address space announced: 43.0
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 1867 9453 519 Korea Telecom (KIX)
7545 1558 299 76 TPG Internet Pty Ltd
4755 1406 651 138 TATA Communications formerly
17974 1342 459 28 PT TELEKOMUNIKASI INDONESIA
24560 1042 312 175 Bharti Airtel Ltd., Telemedia
9583 1041 76 488 Sify Limited
4808 996 1717 273 CNCGROUP IP network: China169
17488 954 157 111 Hathway IP Over Cable Interne
18101 909 116 139 Reliance Infocom Ltd Internet
9829 823 696 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 3734 3872 270 bellsouth.net, inc.
4323 2641 1077 399 Time Warner Telecom
19262 1836 4873 283 Verizon Global Networks
1785 1788 697 132 PaeTec Communications, Inc.
20115 1514 1531 640 Charter Communications
6478 1437 290 52 AT&T Worldnet Services
7018 1361 5652 872 AT&T WorldNet Services
2386 1313 570 933 AT&T Data Communications Serv
11492 1271 233 75 Cable One
22773 1257 2864 74 Cox Communications, Inc.
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 503 1763 310 UPC Distribution Services
3292 443 2010 386 TDC Tele Danmark
34984 440 96 133 BILISIM TELEKOM
8866 439 133 23 Bulgarian Telecommunication C
9121 435 1690 29 TTnet Autonomous System
9198 417 202 13 Kazakhtelecom Data Network Ad
8551 402 353 46 Bezeq International
702 397 1864 311 UUNET - Commercial IP service
12479 393 577 6 Uni2 Autonomous System
3320 392 7609 344 Deutsche Telekom AG
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 1347 2617 363 UniNet S.A. de C.V.
10620 1343 250 154 TVCABLE BOGOTA
28573 1225 933 79 NET Servicos de Comunicao S.A
6503 1187 355 80 AVANTEL, S.A.
7303 832 441 109 Telecom Argentina Stet-France
14420 584 49 88 CORPORACION NACIONAL DE TELEC
22047 565 310 15 VTR PUNTO NET S.A.
3816 494 216 101 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 1125 445 10 TEDATA
24863 746 147 39 LINKdotNET AS number
36992 658 276 158 Etisalat MISR
3741 263 986 225 The Internet Solution
24835 217 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
29571 199 19 11 Ci Telecom Autonomous system
2018 196 277 64 Tertiary Education Network
33776 184 12 14 Starcomms Nigeria Limited
16637 161 440 88 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 3734 3872 270 bellsouth.net, inc.
4323 2641 1077 399 Time Warner Telecom
4766 1867 9453 519 Korea Telecom (KIX)
19262 1836 4873 283 Verizon Global Networks
1785 1788 697 132 PaeTec Communications, Inc.
7545 1558 299 76 TPG Internet Pty Ltd
20115 1514 1531 640 Charter Communications
6478 1437 290 52 AT&T Worldnet Services
4755 1406 651 138 TATA Communications formerly
7018 1361 5652 872 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 2242 Time Warner Telecom
1785 1788 1656 PaeTec Communications, Inc.
19262 1836 1553 Verizon Global Networks
7545 1558 1482 TPG Internet Pty Ltd
6478 1437 1385 AT&T Worldnet Services
4766 1867 1348 Korea Telecom (KIX)
17974 1342 1314 PT TELEKOMUNIKASI INDONESIA
4755 1406 1268 TATA Communications formerly
11492 1271 1196 Cable One
10620 1343 1189 TVCABLE BOGOTA
Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
16927 UNALLOCATED 12.0.252.0/23 7018 AT&T WorldNet Servic
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic
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
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<<
46.211.0.0/16 15895 Kyivstar GSM
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 /8:20 /9:10 /10:25 /11:70 /12:212
/13:431 /14:753 /15:1346 /16:11410 /17:5526 /18:9208
/19:18676 /20:23969 /21:24284 /22:31827 /23:30881 /24:177306
/25:991 /26:1065 /27:579 /28:155 /29:12 /30:2
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2306 3734 bellsouth.net, inc.
4323 1429 2641 Time Warner Telecom
6478 1394 1437 AT&T Worldnet Services
10620 1235 1343 TVCABLE BOGOTA
11492 1226 1271 Cable One
18566 1076 1095 Covad Communications
7011 1071 1174 Citizens Utilities
1785 1062 1788 PaeTec Communications, Inc.
8452 1021 1125 TEDATA
6503 972 1187 AVANTEL, S.A.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:140 2:11 4:13 5:1 8:317 12:2034
13:6 14:94 15:17 16:3 17:8 20:9
24:1447 27:491 32:61 33:5 34:2 36:1
37:1 38:714 40:102 41:2716 42:1 44:3
46:387 47:4 49:73 50:27 52:12 55:3
56:2 57:29 58:858 59:502 60:393 61:1105
62:1047 63:1941 64:3718 65:2322 66:4082 67:1757
68:991 69:2815 70:714 71:389 72:1946 73:1
74:2283 75:289 76:319 77:852 78:746 79:434
80:1042 81:786 82:516 83:444 84:631 85:1053
86:514 87:708 88:406 89:1586 90:143 91:3342
92:473 93:1010 94:1129 95:698 96:409 97:247
98:709 99:33 101:3 107:2 108:77 109:813
110:474 111:671 112:309 113:321 114:478 115:639
116:890 117:655 118:608 119:1014 120:199 121:725
122:1570 123:1025 124:1232 125:1211 128:230 129:153
130:170 131:564 132:234 133:20 134:206 135:50
136:212 137:148 138:290 139:109 140:481 141:197
142:352 143:358 144:480 145:52 146:424 147:190
148:629 149:327 150:150 151:230 152:297 153:172
154:3 155:372 156:166 157:338 158:126 159:369
160:315 161:198 162:276 163:164 164:434 165:334
166:470 167:417 168:738 169:151 170:726 171:67
172:2 173:1142 174:475 175:264 176:1 177:2
178:654 180:726 182:467 183:241 184:190 186:839
187:773 188:889 189:1041 190:4225 192:5781 193:4795
194:3474 195:2888 196:1191 197:1 198:3535 199:3682
200:5543 201:1581 202:8252 203:8380 204:4048 205:2331
206:2522 207:2971 208:3857 209:3486 210:2559 211:1314
212:1887 213:1705 214:744 215:62 216:4791 217:1622
218:524 219:386 220:1175 221:443 222:342 223:81
End of report
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