[lacnog] Weekly Routing Table Report
Routing Analysis Role Account
cscora en apnic.net
Vie Feb 10 16:59:56 BRST 2012
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,
TRNOG, 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 11 Feb, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 397602
Prefixes after maximum aggregation: 169606
Deaggregation factor: 2.34
Unique aggregates announced to Internet: 192311
Total ASes present in the Internet Routing Table: 40086
Prefixes per ASN: 9.92
Origin-only ASes present in the Internet Routing Table: 32739
Origin ASes announcing only one prefix: 15528
Transit ASes present in the Internet Routing Table: 5400
Transit-only ASes present in the Internet Routing Table: 147
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: 328
Unregistered ASNs in the Routing Table: 127
Number of 32-bit ASNs allocated by the RIRs: 2272
Number of 32-bit ASNs visible in the Routing Table: 1947
Prefixes from 32-bit ASNs in the Routing Table: 4674
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 137
Number of addresses announced to Internet: 2513929424
Equivalent to 149 /8s, 215 /16s and 132 /24s
Percentage of available address space announced: 67.8
Percentage of allocated address space announced: 67.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.0
Total number of prefixes smaller than registry allocations: 168841
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 98087
Total APNIC prefixes after maximum aggregation: 31681
APNIC Deaggregation factor: 3.10
Prefixes being announced from the APNIC address blocks: 94410
Unique aggregates announced from the APNIC address blocks: 39147
APNIC Region origin ASes present in the Internet Routing Table: 4652
APNIC Prefixes per ASN: 20.29
APNIC Region origin ASes announcing only one prefix: 1239
APNIC Region transit ASes present in the Internet Routing Table: 737
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 143
Number of APNIC addresses announced to Internet: 635706656
Equivalent to 37 /8s, 228 /16s and 29 /24s
Percentage of available APNIC address space announced: 80.6
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: 148238
Total ARIN prefixes after maximum aggregation: 75329
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 120188
Unique aggregates announced from the ARIN address blocks: 49415
ARIN Region origin ASes present in the Internet Routing Table: 14905
ARIN Prefixes per ASN: 8.06
ARIN Region origin ASes announcing only one prefix: 5689
ARIN Region transit ASes present in the Internet Routing Table: 1576
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 15
Number of ARIN addresses announced to Internet: 804413120
Equivalent to 47 /8s, 242 /16s and 94 /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: 98764
Total RIPE prefixes after maximum aggregation: 52358
RIPE Deaggregation factor: 1.89
Prefixes being announced from the RIPE address blocks: 90594
Unique aggregates announced from the RIPE address blocks: 56087
RIPE Region origin ASes present in the Internet Routing Table: 16308
RIPE Prefixes per ASN: 5.56
RIPE Region origin ASes announcing only one prefix: 7997
RIPE Region transit ASes present in the Internet Routing Table: 2598
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: 1344
Number of RIPE addresses announced to Internet: 500587080
Equivalent to 29 /8s, 214 /16s and 90 /24s
Percentage of available RIPE address space announced: 80.6
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: 38648
Total LACNIC prefixes after maximum aggregation: 8064
LACNIC Deaggregation factor: 4.79
Prefixes being announced from the LACNIC address blocks: 38261
Unique aggregates announced from the LACNIC address blocks: 19517
LACNIC Region origin ASes present in the Internet Routing Table: 1572
LACNIC Prefixes per ASN: 24.34
LACNIC Region origin ASes announcing only one prefix: 439
LACNIC Region transit ASes present in the Internet Routing Table: 290
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 24
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 441
Number of LACNIC addresses announced to Internet: 96512392
Equivalent to 5 /8s, 192 /16s and 169 /24s
Percentage of available LACNIC address space announced: 63.9
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: 9015
Total AfriNIC prefixes after maximum aggregation: 2096
AfriNIC Deaggregation factor: 4.30
Prefixes being announced from the AfriNIC address blocks: 7029
Unique aggregates announced from the AfriNIC address blocks: 2148
AfriNIC Region origin ASes present in the Internet Routing Table: 511
AfriNIC Prefixes per ASN: 13.76
AfriNIC Region origin ASes announcing only one prefix: 164
AfriNIC Region transit ASes present in the Internet Routing Table: 117
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: 30893056
Equivalent to 1 /8s, 215 /16s and 100 /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 2471 11101 979 Korea Telecom (KIX)
17974 1729 503 36 PT TELEKOMUNIKASI INDONESIA
7545 1642 303 85 TPG Internet Pty Ltd
4755 1532 385 156 TATA Communications formerly
7552 1393 1064 7 Vietel Corporation
9829 1172 989 28 BSNL National Internet Backbo
4808 1149 2112 314 CNCGROUP IP network: China169
9583 1124 83 482 Sify Limited
24560 1014 385 167 Bharti Airtel Ltd., Telemedia
18101 950 130 155 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 3442 3807 201 bellsouth.net, inc.
7029 3391 1014 159 Windstream Communications Inc
18566 2093 382 177 Covad Communications
1785 1868 680 125 PaeTec Communications, Inc.
20115 1625 1550 631 Charter Communications
4323 1610 1062 385 Time Warner Telecom
22773 1511 2910 109 Cox Communications, Inc.
30036 1392 244 751 Mediacom Communications Corp
19262 1386 4687 396 Verizon Global Networks
7018 1307 6995 849 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 1719 480 15 Corbina telecom
2118 1385 97 13 EUnet/RELCOM Autonomous Syste
15557 1095 2161 63 LDCOM NETWORKS
34984 650 188 172 BILISIM TELEKOM
6830 644 1927 413 UPC Distribution Services
20940 608 195 470 Akamai Technologies European
12479 584 642 53 Uni2 Autonomous System
31148 538 37 9 FreeNet ISP
3320 533 8450 399 Deutsche Telekom AG
8551 530 360 81 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 1751 324 162 TVCABLE BOGOTA
28573 1655 1085 69 NET Servicos de Comunicao S.A
8151 1475 3003 342 UniNet S.A. de C.V.
7303 1263 758 182 Telecom Argentina Stet-France
26615 896 664 33 Tim Brasil S.A.
11172 694 95 75 Servicios Alestra S.A de C.V
27947 655 67 105 Telconet S.A
22047 581 322 17 VTR PUNTO NET S.A.
3816 551 237 91 Empresa Nacional de Telecomun
7738 550 1050 31 Telecomunicacoes da Bahia 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 1235 958 13 TEDATA
24863 829 155 43 LINKdotNET AS number
6713 485 649 18 Itissalat Al-MAGHRIB
3741 278 939 229 The Internet Solution
15706 238 32 6 Sudatel Internet Exchange Aut
33776 236 13 14 Starcomms Nigeria Limited
12258 197 28 62 Vodacom Internet Company
24835 193 80 8 RAYA Telecom - Egypt
29571 189 17 11 Ci Telecom Autonomous system
16637 163 664 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 3442 3807 201 bellsouth.net, inc.
7029 3391 1014 159 Windstream Communications Inc
4766 2471 11101 979 Korea Telecom (KIX)
18566 2093 382 177 Covad Communications
1785 1868 680 125 PaeTec Communications, Inc.
10620 1751 324 162 TVCABLE BOGOTA
17974 1729 503 36 PT TELEKOMUNIKASI INDONESIA
8402 1719 480 15 Corbina telecom
28573 1655 1085 69 NET Servicos de Comunicao S.A
7545 1642 303 85 TPG Internet Pty Ltd
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 3391 3232 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1868 1743 PaeTec Communications, Inc.
8402 1719 1704 Corbina telecom
17974 1729 1693 PT TELEKOMUNIKASI INDONESIA
10620 1751 1589 TVCABLE BOGOTA
28573 1655 1586 NET Servicos de Comunicao S.A
7545 1642 1557 TPG Internet Pty Ltd
4766 2471 1492 Korea Telecom (KIX)
22773 1511 1402 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
14.192.0.0/22 45464 Room 201, TGU Bldg
14.192.4.0/22 45464 Room 201, TGU Bldg
14.192.8.0/22 45464 Room 201, TGU Bldg
14.192.12.0/22 45464 Room 201, TGU Bldg
14.192.16.0/22 45464 Room 201, TGU Bldg
14.192.20.0/22 45464 Room 201, TGU Bldg
14.192.24.0/22 45464 Room 201, TGU Bldg
14.192.28.0/22 45464 Room 201, TGU Bldg
37.98.200.0/21 56687 Nimad Rah Khoozestan PLC
37.98.208.0/20 8374 Polkomtel S.A.
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 /11:80 /12:231
/13:458 /14:816 /15:1469 /16:12130 /17:6197 /18:10311
/19:20471 /20:28291 /21:29233 /22:39842 /23:37018 /24:207333
/25:1195 /26:1434 /27:775 /28:169 /29:59 /30:14
/31:0 /32:18
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3047 3391 Windstream Communications Inc
6389 2112 3442 bellsouth.net, inc.
18566 2042 2093 Covad Communications
8402 1698 1719 Corbina telecom
10620 1645 1751 TVCABLE BOGOTA
30036 1351 1392 Mediacom Communications Corp
11492 1118 1155 Cable One
1785 1065 1868 PaeTec Communications, Inc.
15557 1045 1095 LDCOM NETWORKS
8452 1041 1235 TEDATA
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:505 2:689 4:14 5:1 6:3 8:385
12:1958 13:1 14:596 15:11 16:3 17:7
20:9 23:133 24:1724 27:1197 31:901 32:65
33:2 34:2 36:9 37:177 38:776 40:115
41:3174 42:93 43:1 44:3 46:1281 47:3
49:322 50:512 52:13 54:2 55:9 56:3
57:38 58:962 59:491 60:344 61:1195 62:949
63:2008 64:4130 65:2285 66:4426 67:2039 68:1174
69:3159 70:927 71:412 72:1795 74:2654 75:463
76:322 77:976 78:936 79:502 80:1228 81:881
82:569 83:529 84:582 85:1154 86:742 87:919
88:334 89:1547 90:271 91:4479 92:538 93:1328
94:1357 95:1084 96:418 97:310 98:814 99:38
100:4 101:141 103:776 106:65 107:152 108:150
109:1486 110:694 111:848 112:432 113:530 114:597
115:763 116:868 117:727 118:899 119:1254 120:361
121:683 122:1621 123:1071 124:1337 125:1369 128:542
129:189 130:212 131:589 132:164 133:21 134:231
135:60 136:216 137:153 138:286 139:145 140:488
141:262 142:385 143:411 144:520 145:70 146:484
147:242 148:728 149:274 150:165 151:196 152:447
153:170 154:7 155:403 156:211 157:368 158:156
159:515 160:322 161:244 162:341 163:187 164:529
165:391 166:556 167:457 168:762 169:147 170:832
171:111 172:2 173:1733 174:603 175:416 176:515
177:481 178:1247 180:1180 181:65 182:715 183:278
184:425 185:1 186:2050 187:842 188:1031 189:1169
190:5474 192:5970 193:5525 194:4327 195:3393 196:1299
197:181 198:3619 199:4378 200:5718 201:1736 202:8496
203:8625 204:4346 205:2440 206:2736 207:2804 208:4069
209:3566 210:2747 211:1477 212:2042 213:1847 214:864
215:96 216:5000 217:1477 218:548 219:340 220:1252
221:558 222:325 223:280
End of report
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