[afnog] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Jul 13 19:10:16 UTC 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 at lists.apnic.net
For historical data, please see http://thyme.rand.apnic.net.
If you have any comments please contact Philip Smith <pfsinoz at gmail.com>.
Routing Table Report 04:00 +10GMT Sat 14 Jul, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 416525
Prefixes after maximum aggregation: 175957
Deaggregation factor: 2.37
Unique aggregates announced to Internet: 202804
Total ASes present in the Internet Routing Table: 41495
Prefixes per ASN: 10.04
Origin-only ASes present in the Internet Routing Table: 33311
Origin ASes announcing only one prefix: 15683
Transit ASes present in the Internet Routing Table: 5581
Transit-only ASes present in the Internet Routing Table: 135
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 31
Max AS path prepend of ASN ( 51742) 24
Prefixes from unregistered ASNs in the Routing Table: 404
Unregistered ASNs in the Routing Table: 131
Number of 32-bit ASNs allocated by the RIRs: 2974
Number of 32-bit ASNs visible in the Routing Table: 2603
Prefixes from 32-bit ASNs in the Routing Table: 6761
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 162
Number of addresses announced to Internet: 2565104428
Equivalent to 152 /8s, 228 /16s and 99 /24s
Percentage of available address space announced: 69.2
Percentage of allocated address space announced: 69.3
Percentage of available address space allocated: 99.9
Percentage of address space in use by end-sites: 93.0
Total number of prefixes smaller than registry allocations: 144361
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 101982
Total APNIC prefixes after maximum aggregation: 32789
APNIC Deaggregation factor: 3.11
Prefixes being announced from the APNIC address blocks: 102433
Unique aggregates announced from the APNIC address blocks: 42106
APNIC Region origin ASes present in the Internet Routing Table: 4715
APNIC Prefixes per ASN: 21.72
APNIC Region origin ASes announcing only one prefix: 1243
APNIC Region transit ASes present in the Internet Routing Table: 739
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 26
Number of APNIC region 32-bit ASNs visible in the Routing Table: 245
Number of APNIC addresses announced to Internet: 704212608
Equivalent to 41 /8s, 249 /16s and 110 /24s
Percentage of available APNIC address space announced: 82.3
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-133119
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, 150/8, 153/8,
163/8, 171/8, 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: 152258
Total ARIN prefixes after maximum aggregation: 77460
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 153294
Unique aggregates announced from the ARIN address blocks: 68403
ARIN Region origin ASes present in the Internet Routing Table: 15189
ARIN Prefixes per ASN: 10.09
ARIN Region origin ASes announcing only one prefix: 5766
ARIN Region transit ASes present in the Internet Routing Table: 1612
Average ARIN Region AS path length visible: 4.1
Max ARIN Region AS path length visible: 24
Number of ARIN region 32-bit ASNs visible in the Routing Table: 17
Number of ARIN addresses announced to Internet: 1071305600
Equivalent to 63 /8s, 218 /16s and 211 /24s
Percentage of available ARIN address space announced: 56.7
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, 128/8,
129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8,
137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8,
146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8,
157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8,
165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8,
173/8, 174/8, 184/8, 192/8, 198/8, 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: 103627
Total RIPE prefixes after maximum aggregation: 55173
RIPE Deaggregation factor: 1.88
Prefixes being announced from the RIPE address blocks: 105822
Unique aggregates announced from the RIPE address blocks: 67104
RIPE Region origin ASes present in the Internet Routing Table: 16657
RIPE Prefixes per ASN: 6.35
RIPE Region origin ASes announcing only one prefix: 8072
RIPE Region transit ASes present in the Internet Routing Table: 2711
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 31
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1715
Number of RIPE addresses announced to Internet: 635650436
Equivalent to 37 /8s, 227 /16s and 65 /24s
Percentage of available RIPE address space announced: 92.4
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
59392-61439, 196608-199679
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,
141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
193/8, 194/8, 195/8, 212/8, 213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 42512
Total LACNIC prefixes after maximum aggregation: 8355
LACNIC Deaggregation factor: 5.09
Prefixes being announced from the LACNIC address blocks: 45201
Unique aggregates announced from the LACNIC address blocks: 21759
LACNIC Region origin ASes present in the Internet Routing Table: 1610
LACNIC Prefixes per ASN: 28.08
LACNIC Region origin ASes announcing only one prefix: 430
LACNIC Region transit ASes present in the Internet Routing Table: 307
Average LACNIC Region AS path length visible: 4.7
Max LACNIC Region AS path length visible: 25
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 621
Number of LACNIC addresses announced to Internet: 112309160
Equivalent to 6 /8s, 177 /16s and 179 /24s
Percentage of available LACNIC address space announced: 66.9
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,
191/8, 200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 9181
Total AfriNIC prefixes after maximum aggregation: 2126
AfriNIC Deaggregation factor: 4.32
Prefixes being announced from the AfriNIC address blocks: 9613
Unique aggregates announced from the AfriNIC address blocks: 3291
AfriNIC Region origin ASes present in the Internet Routing Table: 553
AfriNIC Prefixes per ASN: 17.38
AfriNIC Region origin ASes announcing only one prefix: 172
AfriNIC Region transit ASes present in the Internet Routing Table: 124
Average AfriNIC Region AS path length visible: 4.4
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 41186304
Equivalent to 2 /8s, 116 /16s and 116 /24s
Percentage of available AfriNIC address space announced: 40.9
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 2733 11119 1236 Korea Telecom (KIX)
17974 2217 558 80 PT TELEKOMUNIKASI INDONESIA
7545 1690 301 86 TPG Internet Pty Ltd
4755 1613 388 162 TATA Communications formerly
9829 1303 1085 28 BSNL National Internet Backbo
9583 1167 88 505 Sify Limited
7552 1128 1062 11 Vietel Corporation
4808 1117 2053 318 CNCGROUP IP network: China169
24560 1037 385 165 Bharti Airtel Ltd., Telemedia
9498 982 291 68 BHARTI Airtel Ltd.
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 3389 3773 187 bellsouth.net, inc.
7029 3337 998 177 Windstream Communications Inc
18566 2088 382 181 Covad Communications
1785 1935 681 130 PaeTec Communications, Inc.
22773 1665 2911 121 Cox Communications, Inc.
20115 1648 1571 615 Charter Communications
4323 1575 1043 384 Time Warner Telecom
30036 1388 269 785 Mediacom Communications Corp
7018 1258 10044 823 AT&T WorldNet Services
7011 1197 320 696 Citizens Utilities
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 1589 544 16 Corbina telecom
2118 1023 97 14 EUnet/RELCOM Autonomous Syste
12479 796 741 94 Uni2 Autonomous System
34984 728 189 174 BILISIM TELEKOM
6830 709 2292 443 UPC Distribution Services
31148 702 37 9 FreeNet ISP
20940 684 220 531 Akamai Technologies European
8551 577 364 61 Bezeq International
13188 576 100 10 Educational Network
3320 500 8443 410 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
28573 2003 1214 55 NET Servicos de Comunicao S.A
10620 1990 346 208 TVCABLE BOGOTA
6503 1523 418 66 AVANTEL, S.A.
8151 1466 3042 343 UniNet S.A. de C.V.
7303 1454 934 194 Telecom Argentina Stet-France
6458 854 81 15 GUATEL
27947 714 73 93 Telconet S.A
11172 643 91 74 Servicios Alestra S.A de C.V
3816 588 246 90 Empresa Nacional de Telecomun
22047 583 326 15 VTR PUNTO NET 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 1156 958 13 TEDATA
24863 863 274 32 LINKdotNET AS number
6713 508 649 18 Itissalat Al-MAGHRIB
24835 285 80 8 RAYA Telecom - Egypt
3741 262 905 223 The Internet Solution
12258 197 28 62 Vodacom Internet Company
33776 194 12 18 Starcomms Nigeria Limited
29975 191 667 21 Vodacom
16637 170 664 87 MTN Network Solutions
15706 159 32 6 Sudatel Internet Exchange Aut
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 3389 3773 187 bellsouth.net, inc.
7029 3337 998 177 Windstream Communications Inc
4766 2733 11119 1236 Korea Telecom (KIX)
17974 2217 558 80 PT TELEKOMUNIKASI INDONESIA
18566 2088 382 181 Covad Communications
28573 2003 1214 55 NET Servicos de Comunicao S.A
10620 1990 346 208 TVCABLE BOGOTA
1785 1935 681 130 PaeTec Communications, Inc.
7545 1690 301 86 TPG Internet Pty Ltd
22773 1665 2911 121 Cox Communications, Inc.
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 3337 3160 Windstream Communications Inc
17974 2217 2137 PT TELEKOMUNIKASI INDONESIA
28573 2003 1948 NET Servicos de Comunicao S.A
18566 2088 1907 Covad Communications
1785 1935 1805 PaeTec Communications, Inc.
10620 1990 1782 TVCABLE BOGOTA
7545 1690 1604 TPG Internet Pty Ltd
8402 1589 1573 Corbina telecom
22773 1665 1544 Cox Communications, Inc.
4766 2733 1497 Korea Telecom (KIX)
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
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
14764 UNALLOCATED 12.108.237.0/24 7018 AT&T WorldNet Servic
33649 UNALLOCATED 12.111.112.0/24 19029 New Edge Networks
29760 UNALLOCATED 12.145.34.0/23 7018 AT&T WorldNet Servic
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
198.18.0.0/15 14744 Internap Network Services
Complete listing at http://thyme.rand.apnic.net/current/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
5.144.160.0/20 12637 SEEWEB srl
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
27.112.114.0/24 23884 Proimage Engineering and Comm
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 /10:28 /11:82 /12:236
/13:471 /14:843 /15:1519 /16:12288 /17:6367 /18:10787
/19:20871 /20:29736 /21:31544 /22:41211 /23:39218 /24:217439
/25:1237 /26:1489 /27:857 /28:168 /29:62 /30:18
/31:0 /32:23
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2673 3337 Windstream Communications Inc
18566 2038 2088 Covad Communications
6389 1868 3389 bellsouth.net, inc.
30036 1323 1388 Mediacom Communications Corp
8402 1285 1589 Corbina telecom
11492 1154 1191 Cable One
22773 1095 1665 Cox Communications, Inc.
6503 1051 1523 AVANTEL, S.A.
1785 1043 1935 PaeTec Communications, Inc.
7011 934 1197 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:579 2:691 3:1 4:13 5:128 6:3
8:419 12:2007 13:1 14:636 15:12 16:3
17:5 20:24 23:188 24:1786 27:1329 31:1014
32:56 33:2 34:2 36:8 37:615 38:822
39:1 40:128 41:3016 42:141 44:3 46:1523
47:2 49:430 50:553 52:13 54:14 55:7
56:1 57:34 58:978 59:527 60:245 61:1335
62:923 63:2005 64:4229 65:2238 66:4495 67:2025
68:1140 69:3195 70:980 71:512 72:1868 74:2599
75:479 76:334 77:934 78:905 79:492 80:1215
81:942 82:650 83:523 84:500 85:1160 86:425
87:933 88:357 89:1684 90:303 91:5015 92:582
93:1302 94:1563 95:1242 96:357 97:321 98:887
99:39 100:20 101:256 103:1248 106:115 107:189
108:370 109:1461 110:789 111:939 112:428 113:654
114:655 115:905 116:920 117:722 118:903 119:1220
120:349 121:798 122:1662 123:1164 124:1380 125:1254
128:552 129:185 130:264 131:632 132:300 133:22
134:246 135:61 136:218 137:239 138:334 139:177
140:493 141:246 142:431 143:374 144:474 145:77
146:518 147:281 148:769 149:317 150:151 151:185
152:475 153:176 154:17 155:432 156:220 157:381
158:190 159:625 160:343 161:274 162:379 163:192
164:666 165:410 166:589 167:532 168:914 169:125
170:896 171:146 172:5 173:1726 174:607 175:437
176:563 177:955 178:1619 180:1303 181:104 182:989
183:230 184:539 186:1983 187:1089 188:1367 189:1592
190:6058 192:6008 193:5525 194:4476 195:3229 196:1211
197:170 198:3677 199:4860 200:5959 201:1992 202:8712
203:8667 204:4381 205:2523 206:2786 207:2761 208:4031
209:3626 210:2791 211:1561 212:1970 213:1813 214:867
215:83 216:5088 217:1550 218:556 219:339 220:1228
221:569 222:337 223:350
End of report
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