[lacnog] Weekly Routing Table Report
Routing Analysis Role Account
cscora en apnic.net
Vie Ene 20 17:29:46 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 21 Jan, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 393115
Prefixes after maximum aggregation: 169030
Deaggregation factor: 2.33
Unique aggregates announced to Internet: 191068
Total ASes present in the Internet Routing Table: 39874
Prefixes per ASN: 9.86
Origin-only ASes present in the Internet Routing Table: 32616
Origin ASes announcing only one prefix: 15498
Transit ASes present in the Internet Routing Table: 5384
Transit-only ASes present in the Internet Routing Table: 140
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: 2141
Unregistered ASNs in the Routing Table: 1089
Number of 32-bit ASNs allocated by the RIRs: 2200
Number of 32-bit ASNs visible in the Routing Table: 1874
Prefixes from 32-bit ASNs in the Routing Table: 4540
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 118
Number of addresses announced to Internet: 2511238896
Equivalent to 149 /8s, 174 /16s and 118 /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: 91.9
Total number of prefixes smaller than registry allocations: 166200
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 97520
Total APNIC prefixes after maximum aggregation: 31610
APNIC Deaggregation factor: 3.09
Prefixes being announced from the APNIC address blocks: 93822
Unique aggregates announced from the APNIC address blocks: 38983
APNIC Region origin ASes present in the Internet Routing Table: 4637
APNIC Prefixes per ASN: 20.23
APNIC Region origin ASes announcing only one prefix: 1240
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: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 134
Number of APNIC addresses announced to Internet: 635145824
Equivalent to 37 /8s, 219 /16s and 142 /24s
Percentage of available APNIC address space announced: 80.5
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: 147631
Total ARIN prefixes after maximum aggregation: 75140
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 119589
Unique aggregates announced from the ARIN address blocks: 49078
ARIN Region origin ASes present in the Internet Routing Table: 14859
ARIN Prefixes per ASN: 8.05
ARIN Region origin ASes announcing only one prefix: 5677
ARIN Region transit ASes present in the Internet Routing Table: 1587
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: 805016256
Equivalent to 47 /8s, 251 /16s and 146 /24s
Percentage of available ARIN address space announced: 64.0
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: 97168
Total RIPE prefixes after maximum aggregation: 52047
RIPE Deaggregation factor: 1.87
Prefixes being announced from the RIPE address blocks: 89044
Unique aggregates announced from the RIPE address blocks: 55638
RIPE Region origin ASes present in the Internet Routing Table: 16253
RIPE Prefixes per ASN: 5.48
RIPE Region origin ASes announcing only one prefix: 7981
RIPE Region transit ASes present in the Internet Routing Table: 2588
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: 1301
Number of RIPE addresses announced to Internet: 497788360
Equivalent to 29 /8s, 171 /16s and 165 /24s
Percentage of available RIPE address space announced: 80.2
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: 37373
Total LACNIC prefixes after maximum aggregation: 8078
LACNIC Deaggregation factor: 4.63
Prefixes being announced from the LACNIC address blocks: 36993
Unique aggregates announced from the LACNIC address blocks: 19328
LACNIC Region origin ASes present in the Internet Routing Table: 1563
LACNIC Prefixes per ASN: 23.67
LACNIC Region origin ASes announcing only one prefix: 440
LACNIC Region transit ASes present in the Internet Routing Table: 283
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 24
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 421
Number of LACNIC addresses announced to Internet: 95480968
Equivalent to 5 /8s, 176 /16s and 236 /24s
Percentage of available LACNIC address space announced: 63.2
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: 8721
Total AfriNIC prefixes after maximum aggregation: 2083
AfriNIC Deaggregation factor: 4.19
Prefixes being announced from the AfriNIC address blocks: 6744
Unique aggregates announced from the AfriNIC address blocks: 2086
AfriNIC Region origin ASes present in the Internet Routing Table: 506
AfriNIC Prefixes per ASN: 13.33
AfriNIC Region origin ASes announcing only one prefix: 160
AfriNIC Region transit ASes present in the Internet Routing Table: 118
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: 30813184
Equivalent to 1 /8s, 214 /16s and 44 /24s
Percentage of available AfriNIC address space announced: 45.9
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 2473 11101 975 Korea Telecom (KIX)
17974 1715 503 36 PT TELEKOMUNIKASI INDONESIA
7545 1638 303 86 TPG Internet Pty Ltd
4755 1524 385 154 TATA Communications formerly
7552 1424 1064 7 Vietel Corporation
9829 1163 989 28 BSNL National Internet Backbo
9583 1119 81 490 Sify Limited
4808 1100 2050 311 CNCGROUP IP network: China169
24560 1007 383 166 Bharti Airtel Ltd., Telemedia
18101 946 130 155 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 3449 3807 202 bellsouth.net, inc.
7029 3223 1016 199 Windstream Communications Inc
18566 2093 382 177 Covad Communications
1785 1865 679 122 PaeTec Communications, Inc.
20115 1620 1553 615 Charter Communications
4323 1607 1062 382 Time Warner Telecom
30036 1487 266 707 Mediacom Communications Corp
22773 1486 2909 108 Cox Communications, Inc.
19262 1386 4683 400 Verizon Global Networks
7018 1298 7008 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 1714 480 15 Corbina telecom
2118 1241 99 14 EUnet/RELCOM Autonomous Syste
15557 1095 2161 64 LDCOM NETWORKS
6830 644 1928 413 UPC Distribution Services
34984 638 188 172 BILISIM TELEKOM
31148 613 35 9 FreeNet ISP
20940 571 185 453 Akamai Technologies European
12479 557 639 55 Uni2 Autonomous System
8551 528 360 81 Bezeq International
3320 517 8157 393 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
10620 1723 321 167 TVCABLE BOGOTA
28573 1616 1068 77 NET Servicos de Comunicao S.A
8151 1460 2999 342 UniNet S.A. de C.V.
7303 1256 756 179 Telecom Argentina Stet-France
27947 642 73 96 Telconet S.A
22047 581 322 17 VTR PUNTO NET S.A.
7738 551 1050 31 Telecomunicacoes da Bahia S.A
3816 550 238 92 Empresa Nacional de Telecomun
6503 539 434 68 AVANTEL, S.A.
11172 532 85 106 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 1031 958 13 TEDATA
24863 797 146 36 LINKdotNET AS number
6713 485 649 18 Itissalat Al-MAGHRIB
3741 280 939 229 The Internet Solution
15706 239 32 6 Sudatel Internet Exchange Aut
33776 234 13 14 Starcomms Nigeria Limited
29571 214 17 12 Ci Telecom Autonomous system
12258 196 28 61 Vodacom Internet Company
24835 189 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 3449 3807 202 bellsouth.net, inc.
7029 3223 1016 199 Windstream Communications Inc
4766 2473 11101 975 Korea Telecom (KIX)
18566 2093 382 177 Covad Communications
1785 1865 679 122 PaeTec Communications, Inc.
10620 1723 321 167 TVCABLE BOGOTA
17974 1715 503 36 PT TELEKOMUNIKASI INDONESIA
8402 1714 480 15 Corbina telecom
7545 1638 303 86 TPG Internet Pty Ltd
20115 1620 1553 615 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 3223 3024 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1865 1743 PaeTec Communications, Inc.
8402 1714 1699 Corbina telecom
17974 1715 1679 PT TELEKOMUNIKASI INDONESIA
10620 1723 1556 TVCABLE BOGOTA
7545 1638 1552 TPG Internet Pty Ltd
28573 1616 1539 NET Servicos de Comunicao S.A
4766 2473 1498 Korea Telecom (KIX)
7552 1424 1417 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
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
37.60.208.0/20 31214 TIS-DIALOG Autonomous system
37.61.144.0/20 34977 PROCONO 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 /12:232
/13:458 /14:817 /15:1462 /16:12139 /17:6159 /18:10248
/19:20303 /20:28150 /21:29098 /22:39196 /23:36683 /24:204402
/25:1171 /26:1422 /27:782 /28:168 /29:55 /30:14
/31:0 /32:18
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2843 3223 Windstream Communications Inc
6389 2120 3449 bellsouth.net, inc.
18566 2042 2093 Covad Communications
8402 1693 1714 Corbina telecom
10620 1618 1723 TVCABLE BOGOTA
30036 1444 1487 Mediacom Communications Corp
11492 1116 1153 Cable One
1785 1067 1865 PaeTec Communications, Inc.
15557 1046 1095 LDCOM NETWORKS
7011 1031 1148 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:501 2:464 4:15 5:1 6:3 8:377
12:1950 13:1 14:583 15:11 16:3 17:6
20:9 23:112 24:1675 27:1178 31:821 32:65
33:2 34:2 36:8 37:102 38:794 40:114
41:2937 42:87 43:1 44:3 46:1204 47:3
49:319 50:517 52:13 54:1 55:7 56:2
57:41 58:948 59:491 60:345 61:1180 62:920
63:1978 64:4108 65:2286 66:4404 67:2022 68:1155
69:3142 70:920 71:428 72:1799 74:2653 75:445
76:320 77:966 78:904 79:500 80:1189 81:870
82:559 83:533 84:586 85:1153 86:743 87:905
88:341 89:1583 90:257 91:4432 92:531 93:1557
94:1363 95:1104 96:425 97:299 98:789 99:38
100:18 101:132 103:652 106:10 107:134 108:125
109:1467 110:688 111:839 112:429 113:525 114:601
115:757 116:851 117:727 118:901 119:1247 120:355
121:681 122:1630 123:1061 124:1338 125:1341 128:537
129:193 130:213 131:588 132:160 133:21 134:231
135:59 136:213 137:152 138:288 139:145 140:491
141:260 142:377 143:400 144:510 145:68 146:486
147:227 148:640 149:281 150:165 151:193 152:446
153:170 154:7 155:400 156:210 157:367 158:154
159:510 160:320 161:221 162:339 163:188 164:530
165:391 166:561 167:457 168:852 169:147 170:835
171:105 172:4 173:1779 174:584 175:416 176:371
177:464 178:1202 180:1227 181:43 182:693 183:274
184:404 185:1 186:1503 187:840 188:980 189:1164
190:5373 192:5988 193:5459 194:4198 195:3384 196:1290
197:168 198:3621 199:4324 200:5640 201:1697 202:8410
203:8602 204:4339 205:2429 206:2746 207:2803 208:4010
209:3544 210:2745 211:1474 212:1974 213:1825 214:847
215:95 216:4975 217:1473 218:557 219:341 220:1250
221:558 222:324 223:270
End of report
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