[lacnog] Weekly Routing Table Report
Routing Analysis Role Account
cscora en apnic.net
Vie Dic 9 17:22:52 BRST 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 en lists.apnic.net
For historical data, please see http://thyme.rand.apnic.net.
If you have any comments please contact Philip Smith <pfsinoz en gmail.com>.
Routing Table Report 04:00 +10GMT Sat 10 Dec, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 384553
Prefixes after maximum aggregation: 167591
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 188778
Total ASes present in the Internet Routing Table: 39528
Prefixes per ASN: 9.73
Origin-only ASes present in the Internet Routing Table: 32469
Origin ASes announcing only one prefix: 15507
Transit ASes present in the Internet Routing Table: 5346
Transit-only ASes present in the Internet Routing Table: 144
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 33
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 1864
Unregistered ASNs in the Routing Table: 973
Number of 32-bit ASNs allocated by the RIRs: 2059
Number of 32-bit ASNs visible in the Routing Table: 1713
Prefixes from 32-bit ASNs in the Routing Table: 4069
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 82
Number of addresses announced to Internet: 2499466496
Equivalent to 148 /8s, 250 /16s and 213 /24s
Percentage of available address space announced: 67.4
Percentage of allocated address space announced: 67.4
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.7
Total number of prefixes smaller than registry allocations: 162332
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 95338
Total APNIC prefixes after maximum aggregation: 31228
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 91808
Unique aggregates announced from the APNIC address blocks: 38427
APNIC Region origin ASes present in the Internet Routing Table: 4601
APNIC Prefixes per ASN: 19.95
APNIC Region origin ASes announcing only one prefix: 1248
APNIC Region transit ASes present in the Internet Routing Table: 727
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 119
Number of APNIC addresses announced to Internet: 631071072
Equivalent to 37 /8s, 157 /16s and 97 /24s
Percentage of available APNIC address space announced: 80.0
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: 146344
Total ARIN prefixes after maximum aggregation: 74781
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 118441
Unique aggregates announced from the ARIN address blocks: 48663
ARIN Region origin ASes present in the Internet Routing Table: 14799
ARIN Prefixes per ASN: 8.00
ARIN Region origin ASes announcing only one prefix: 5662
ARIN Region transit ASes present in the Internet Routing Table: 1579
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: 803365568
Equivalent to 47 /8s, 226 /16s and 98 /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: 93411
Total RIPE prefixes after maximum aggregation: 51508
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 85799
Unique aggregates announced from the RIPE address blocks: 55001
RIPE Region origin ASes present in the Internet Routing Table: 16170
RIPE Prefixes per ASN: 5.31
RIPE Region origin ASes announcing only one prefix: 7996
RIPE Region transit ASes present in the Internet Routing Table: 2557
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: 1199
Number of RIPE addresses announced to Internet: 493969856
Equivalent to 29 /8s, 113 /16s and 97 /24s
Percentage of available RIPE address space announced: 79.6
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, 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: 36815
Total LACNIC prefixes after maximum aggregation: 7940
LACNIC Deaggregation factor: 4.64
Prefixes being announced from the LACNIC address blocks: 36277
Unique aggregates announced from the LACNIC address blocks: 18889
LACNIC Region origin ASes present in the Internet Routing Table: 1556
LACNIC Prefixes per ASN: 23.31
LACNIC Region origin ASes announcing only one prefix: 441
LACNIC Region transit ASes present in the Internet Routing Table: 289
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: 379
Number of LACNIC addresses announced to Internet: 94673024
Equivalent to 5 /8s, 164 /16s and 152 /24s
Percentage of available LACNIC address space announced: 62.7
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: 8406
Total AfriNIC prefixes after maximum aggregation: 2062
AfriNIC Deaggregation factor: 4.08
Prefixes being announced from the AfriNIC address blocks: 6460
Unique aggregates announced from the AfriNIC address blocks: 2059
AfriNIC Region origin ASes present in the Internet Routing Table: 503
AfriNIC Prefixes per ASN: 12.84
AfriNIC Region origin ASes announcing only one prefix: 160
AfriNIC Region transit ASes present in the Internet Routing Table: 110
Average AfriNIC Region AS path length visible: 4.5
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: 30395392
Equivalent to 1 /8s, 207 /16s and 204 /24s
Percentage of available AfriNIC address space announced: 45.3
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 2509 11104 970 Korea Telecom (KIX)
17974 1694 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1631 303 86 TPG Internet Pty Ltd
4755 1511 385 158 TATA Communications formerly
7552 1392 1064 7 Vietel Corporation
9829 1170 989 28 BSNL National Internet Backbo
9583 1099 81 496 Sify Limited
4808 1076 2034 303 CNCGROUP IP network: China169
24560 982 381 162 Bharti Airtel Ltd., Telemedia
18101 960 122 155 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 3481 3814 218 bellsouth.net, inc.
7029 2916 1017 200 Windstream Communications Inc
18566 2093 383 177 Covad Communications
1785 1855 680 121 PaeTec Communications, Inc.
4323 1617 1073 385 Time Warner Telecom
20115 1602 1548 628 Charter Communications
22773 1505 2909 104 Cox Communications, Inc.
30036 1443 258 675 Mediacom Communications Corp
19262 1388 4683 401 Verizon Global Networks
7018 1309 7029 858 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 1581 480 15 Corbina telecom
6830 644 1927 412 UPC Distribution Services
34984 624 132 201 BILISIM TELEKOM
2118 550 99 14 EUnet/RELCOM Autonomous Syste
20940 544 174 434 Akamai Technologies European
3320 528 8161 394 Deutsche Telekom AG
12479 493 601 12 Uni2 Autonomous System
3292 480 2106 407 TDC Tele Danmark
8866 462 133 26 Bulgarian Telecommunication C
8551 423 366 45 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 1720 318 155 TVCABLE BOGOTA
28573 1549 1059 72 NET Servicos de Comunicao S.A
8151 1459 2985 349 UniNet S.A. de C.V.
7303 1239 751 174 Telecom Argentina Stet-France
27947 617 72 91 Telconet S.A
22047 582 322 17 VTR PUNTO NET S.A.
6503 554 434 68 AVANTEL, S.A.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
3816 547 237 89 Empresa Nacional de Telecomun
11172 528 86 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
8452 963 958 13 TEDATA
24863 785 146 35 LINKdotNET AS number
3741 281 939 230 The Internet Solution
15706 242 32 6 Sudatel Internet Exchange Aut
33776 240 13 8 Starcomms Nigeria Limited
6713 235 519 14 Itissalat Al-MAGHRIB
29571 217 17 13 Ci Telecom Autonomous system
12258 195 28 60 Vodacom Internet Company
24835 193 80 8 RAYA Telecom - Egypt
16637 164 664 83 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 3481 3814 218 bellsouth.net, inc.
7029 2916 1017 200 Windstream Communications Inc
4766 2509 11104 970 Korea Telecom (KIX)
18566 2093 383 177 Covad Communications
1785 1855 680 121 PaeTec Communications, Inc.
10620 1720 318 155 TVCABLE BOGOTA
17974 1694 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1631 303 86 TPG Internet Pty Ltd
4323 1617 1073 385 Time Warner Telecom
20115 1602 1548 628 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 2916 2716 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1855 1734 PaeTec Communications, Inc.
17974 1694 1656 PT TELEKOMUNIKASI INDONESIA
8402 1581 1566 Corbina telecom
10620 1720 1565 TVCABLE BOGOTA
7545 1631 1545 TPG Internet Pty Ltd
4766 2509 1539 Korea Telecom (KIX)
28573 1549 1477 NET Servicos de Comunicao S.A
22773 1505 1401 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
128.0.24.0/24 12654 RIPE NCC RIS Project
Complete listing at http://thyme.rand.apnic.net/current/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
37.0.24.0/21 50794 AS Levira
37.1.88.0/21 50763 MCKAYCOM LTD
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
64.21.192.0/20 11610 Internet Nebraska Corporation
64.21.212.0/22 11610 Internet Nebraska Corporation
64.21.216.0/21 11610 Internet Nebraska Corporation
66.171.32.0/20 705 UUNET Technologies, Inc.
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 /14:812 /15:1442 /16:12042 /17:6104 /18:10146
/19:20068 /20:27797 /21:28040 /22:38213 /23:35782 /24:199713
/25:1176 /26:1417 /27:783 /28:170 /29:3 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2545 2916 Windstream Communications Inc
6389 2124 3481 bellsouth.net, inc.
18566 2042 2093 Covad Communications
10620 1615 1720 TVCABLE BOGOTA
8402 1556 1581 Corbina telecom
30036 1403 1443 Mediacom Communications Corp
11492 1116 1153 Cable One
1785 1060 1855 PaeTec Communications, Inc.
7011 1050 1166 Citizens Utilities
22773 966 1505 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:445 2:483 4:15 5:1 6:3 8:360
12:1944 13:1 14:557 15:11 16:3 17:7
20:9 23:72 24:1699 27:1113 31:721 32:67
33:2 34:2 36:4 38:771 39:1 40:114
41:2895 42:69 43:1 44:3 46:1127 47:3
49:228 50:459 52:13 55:5 56:2 57:45
58:945 59:487 60:342 61:1176 62:912 63:1970
64:4079 65:2307 66:4364 67:2004 68:1178 69:3141
70:916 71:362 72:1776 74:2639 75:431 76:319
77:937 78:886 79:439 80:1142 81:847 82:521
83:529 84:470 85:1169 86:409 87:910 88:353
89:1589 90:247 91:4340 92:539 93:1408 94:1324
95:1131 96:395 97:285 98:784 99:38 101:122
103:538 106:8 107:106 108:95 109:1096 110:670
111:823 112:375 113:485 114:617 115:703 116:876
117:712 118:878 119:1240 120:343 121:681 122:1557
123:1022 124:1365 125:1341 128:275 129:189 130:181
131:579 132:158 133:21 134:221 135:55 136:212
137:147 138:286 139:123 140:491 141:254 142:382
143:404 144:505 145:66 146:474 147:222 148:638
149:272 150:165 151:192 152:445 153:171 154:7
155:380 156:209 157:358 158:156 159:503 160:334
161:221 162:363 163:183 164:523 165:387 166:542
167:459 168:818 169:146 170:823 171:90 172:4
173:1786 174:591 175:415 176:339 177:429 178:1138
180:1173 181:38 182:675 183:253 184:399 185:1
186:1480 187:785 188:939 189:1173 190:5288 192:5969
193:5121 194:3797 195:3366 196:1273 197:172 198:3618
199:4216 200:5543 201:1702 202:8486 203:8523 204:4328
205:2404 206:2670 207:2842 208:4015 209:3558 210:2755
211:1469 212:1982 213:1795 214:822 215:92 216:4934
217:1488 218:578 219:344 220:1250 221:529 222:326
223:262
End of report
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