[lacnog] Weekly Routing Table Report
Routing Analysis Role Account
cscora en apnic.net
Vie Dic 16 17:28:36 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 17 Dec, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 387142
Prefixes after maximum aggregation: 167902
Deaggregation factor: 2.31
Unique aggregates announced to Internet: 189021
Total ASes present in the Internet Routing Table: 39612
Prefixes per ASN: 9.77
Origin-only ASes present in the Internet Routing Table: 32512
Origin ASes announcing only one prefix: 15502
Transit ASes present in the Internet Routing Table: 5342
Transit-only ASes present in the Internet Routing Table: 145
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: 1923
Unregistered ASNs in the Routing Table: 999
Number of 32-bit ASNs allocated by the RIRs: 2095
Number of 32-bit ASNs visible in the Routing Table: 1758
Prefixes from 32-bit ASNs in the Routing Table: 4191
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 90
Number of addresses announced to Internet: 2502485008
Equivalent to 149 /8s, 40 /16s and 228 /24s
Percentage of available address space announced: 67.5
Percentage of allocated address space announced: 67.5
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: 163725
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 95726
Total APNIC prefixes after maximum aggregation: 31275
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 92115
Unique aggregates announced from the APNIC address blocks: 38521
APNIC Region origin ASes present in the Internet Routing Table: 4609
APNIC Prefixes per ASN: 19.99
APNIC Region origin ASes announcing only one prefix: 1248
APNIC Region transit ASes present in the Internet Routing Table: 726
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 123
Number of APNIC addresses announced to Internet: 631919968
Equivalent to 37 /8s, 170 /16s and 85 /24s
Percentage of available APNIC address space announced: 80.1
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: 146548
Total ARIN prefixes after maximum aggregation: 74859
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 118628
Unique aggregates announced from the ARIN address blocks: 48721
ARIN Region origin ASes present in the Internet Routing Table: 14807
ARIN Prefixes per ASN: 8.01
ARIN Region origin ASes announcing only one prefix: 5665
ARIN Region transit ASes present in the Internet Routing Table: 1571
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: 14
Number of ARIN addresses announced to Internet: 804460224
Equivalent to 47 /8s, 243 /16s and 22 /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: 95151
Total RIPE prefixes after maximum aggregation: 51645
RIPE Deaggregation factor: 1.84
Prefixes being announced from the RIPE address blocks: 87257
Unique aggregates announced from the RIPE address blocks: 55070
RIPE Region origin ASes present in the Internet Routing Table: 16196
RIPE Prefixes per ASN: 5.39
RIPE Region origin ASes announcing only one prefix: 7990
RIPE Region transit ASes present in the Internet Routing Table: 2575
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: 1222
Number of RIPE addresses announced to Internet: 494441160
Equivalent to 29 /8s, 120 /16s and 146 /24s
Percentage of available RIPE address space announced: 79.7
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: 36850
Total LACNIC prefixes after maximum aggregation: 7994
LACNIC Deaggregation factor: 4.61
Prefixes being announced from the LACNIC address blocks: 36349
Unique aggregates announced from the LACNIC address blocks: 18889
LACNIC Region origin ASes present in the Internet Routing Table: 1557
LACNIC Prefixes per ASN: 23.35
LACNIC Region origin ASes announcing only one prefix: 443
LACNIC Region transit ASes present in the Internet Routing Table: 284
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: 395
Number of LACNIC addresses announced to Internet: 94826888
Equivalent to 5 /8s, 166 /16s and 241 /24s
Percentage of available LACNIC address space announced: 62.8
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: 8509
Total AfriNIC prefixes after maximum aggregation: 2057
AfriNIC Deaggregation factor: 4.14
Prefixes being announced from the AfriNIC address blocks: 6551
Unique aggregates announced from the AfriNIC address blocks: 2061
AfriNIC Region origin ASes present in the Internet Routing Table: 498
AfriNIC Prefixes per ASN: 13.15
AfriNIC Region origin ASes announcing only one prefix: 156
AfriNIC Region transit ASes present in the Internet Routing Table: 108
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: 30843648
Equivalent to 1 /8s, 214 /16s and 163 /24s
Percentage of available AfriNIC address space announced: 46.0
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 2513 11104 971 Korea Telecom (KIX)
17974 1716 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1632 303 86 TPG Internet Pty Ltd
4755 1517 385 158 TATA Communications formerly
7552 1491 1064 7 Vietel Corporation
9829 1170 989 28 BSNL National Internet Backbo
9583 1101 81 494 Sify Limited
4808 1077 2034 304 CNCGROUP IP network: China169
24560 996 385 167 Bharti Airtel Ltd., Telemedia
18101 964 122 157 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 3479 3814 220 bellsouth.net, inc.
7029 2918 1017 200 Windstream Communications Inc
18566 2093 383 177 Covad Communications
1785 1855 680 121 PaeTec Communications, Inc.
4323 1620 1073 386 Time Warner Telecom
20115 1604 1549 626 Charter Communications
22773 1513 2909 105 Cox Communications, Inc.
30036 1460 261 677 Mediacom Communications Corp
19262 1388 4683 401 Verizon Global Networks
7018 1301 7013 852 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 1592 480 15 Corbina telecom
2118 1097 99 14 EUnet/RELCOM Autonomous Syste
15557 1035 2161 64 LDCOM NETWORKS
6830 647 1928 413 UPC Distribution Services
34984 625 132 195 BILISIM TELEKOM
20940 549 177 438 Akamai Technologies European
12479 539 630 48 Uni2 Autonomous System
3320 532 8162 398 Deutsche Telekom AG
3292 480 2106 407 TDC Tele Danmark
8866 462 134 27 Bulgarian Telecommunication C
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 1717 318 155 TVCABLE BOGOTA
28573 1577 1064 75 NET Servicos de Comunicao S.A
8151 1458 2989 347 UniNet S.A. de C.V.
7303 1248 752 176 Telecom Argentina Stet-France
27947 631 73 93 Telconet S.A
22047 582 322 17 VTR PUNTO NET S.A.
6503 555 434 68 AVANTEL, S.A.
7738 551 1050 31 Telecomunicacoes da Bahia S.A
3816 546 237 89 Empresa Nacional de Telecomun
11172 529 102 96 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 1035 958 13 TEDATA
24863 790 146 36 LINKdotNET AS number
3741 281 939 230 The Internet Solution
6713 243 647 17 Itissalat Al-MAGHRIB
15706 242 32 6 Sudatel Internet Exchange Aut
33776 240 13 8 Starcomms Nigeria Limited
29571 217 17 13 Ci Telecom Autonomous system
12258 195 28 60 Vodacom Internet Company
24835 188 80 8 RAYA Telecom - Egypt
16637 160 664 82 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 3479 3814 220 bellsouth.net, inc.
7029 2918 1017 200 Windstream Communications Inc
4766 2513 11104 971 Korea Telecom (KIX)
18566 2093 383 177 Covad Communications
1785 1855 680 121 PaeTec Communications, Inc.
10620 1717 318 155 TVCABLE BOGOTA
17974 1716 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1632 303 86 TPG Internet Pty Ltd
4323 1620 1073 386 Time Warner Telecom
20115 1604 1549 626 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 2718 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1855 1734 PaeTec Communications, Inc.
17974 1716 1678 PT TELEKOMUNIKASI INDONESIA
8402 1592 1577 Corbina telecom
10620 1717 1562 TVCABLE BOGOTA
7545 1632 1546 TPG Internet Pty Ltd
4766 2513 1542 Korea Telecom (KIX)
28573 1577 1502 NET Servicos de Comunicao S.A
7552 1491 1484 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
128.0.24.0/24 12654 RIPE NCC RIS Project
Complete listing at http://thyme.rand.apnic.net/current/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
37.9.192.0/21 25424 INTERNEXT 2000 S.R.O.
37.10.0.0/17 23456 32-bit ASN transition
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
66.129.0.0/19 3901 Higher Technology Services, I
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 /12:237
/13:465 /14:814 /15:1445 /16:12061 /17:6115 /18:10180
/19:20115 /20:27947 /21:28173 /22:38333 /23:35855 /24:201635
/25:1180 /26:1407 /27:784 /28:169 /29:56 /30:14
/31:0 /32:18
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2546 2918 Windstream Communications Inc
6389 2124 3479 bellsouth.net, inc.
18566 2042 2093 Covad Communications
10620 1612 1717 TVCABLE BOGOTA
8402 1569 1592 Corbina telecom
30036 1420 1460 Mediacom Communications Corp
11492 1105 1142 Cable One
1785 1059 1855 PaeTec Communications, Inc.
7011 1051 1168 Citizens Utilities
15557 991 1035 LDCOM NETWORKS
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:451 2:415 4:15 5:1 6:3 8:360
12:1944 13:1 14:562 15:11 16:3 17:7
20:9 23:74 24:1695 27:1122 31:734 32:67
33:2 34:2 36:4 38:776 39:1 40:114
41:2992 42:78 43:1 44:3 46:1136 47:3
49:278 50:464 52:13 55:5 56:2 57:44
58:958 59:485 60:342 61:1185 62:932 63:1964
64:4112 65:2302 66:4371 67:2005 68:1183 69:3135
70:919 71:378 72:1776 74:2637 75:432 76:319
77:933 78:856 79:442 80:1171 81:848 82:528
83:530 84:570 85:1163 86:733 87:899 88:342
89:1578 90:247 91:4368 92:540 93:1505 94:1321
95:1047 96:397 97:286 98:766 99:38 100:1
101:130 103:561 106:11 107:113 108:99 109:1403
110:672 111:825 112:379 113:490 114:601 115:708
116:887 117:716 118:894 119:1244 120:343 121:674
122:1559 123:1028 124:1379 125:1340 128:556 129:189
130:182 131:584 132:162 133:21 134:225 135:54
136:213 137:151 138:286 139:124 140:493 141:255
142:382 143:388 144:490 145:67 146:477 147:222
148:634 149:273 150:164 151:192 152:445 153:172
154:7 155:382 156:210 157:366 158:155 159:499
160:341 161:221 162:362 163:187 164:521 165:387
166:541 167:459 168:816 169:146 170:829 171:93
172:4 173:1793 174:596 175:416 176:325 177:436
178:1143 180:1204 181:39 182:670 183:251 184:403
185:1 186:1426 187:783 188:954 189:1178 190:5290
192:5981 193:5191 194:4280 195:3364 196:1283 197:173
198:3629 199:4232 200:5512 201:1714 202:8480 203:8509
204:4345 205:2406 206:2668 207:2835 208:4024 209:3560
210:2750 211:1475 212:1972 213:1802 214:800 215:93
216:4927 217:1499 218:584 219:351 220:1250 221:529
222:326 223:264
End of report
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