[SANOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Jul 6 19:09:20 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 07 Jul, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 416013
Prefixes after maximum aggregation: 175712
Deaggregation factor: 2.37
Unique aggregates announced to Internet: 202545
Total ASes present in the Internet Routing Table: 41442
Prefixes per ASN: 10.04
Origin-only ASes present in the Internet Routing Table: 33316
Origin ASes announcing only one prefix: 15667
Transit ASes present in the Internet Routing Table: 5555
Transit-only ASes present in the Internet Routing Table: 133
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 27
Max AS path prepend of ASN ( 51742) 24
Prefixes from unregistered ASNs in the Routing Table: 391
Unregistered ASNs in the Routing Table: 124
Number of 32-bit ASNs allocated by the RIRs: 2945
Number of 32-bit ASNs visible in the Routing Table: 2571
Prefixes from 32-bit ASNs in the Routing Table: 6623
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 166
Number of addresses announced to Internet: 2562615596
Equivalent to 152 /8s, 190 /16s and 105 /24s
Percentage of available address space announced: 69.1
Percentage of allocated address space announced: 69.2
Percentage of available address space allocated: 99.9
Percentage of address space in use by end-sites: 93.1
Total number of prefixes smaller than registry allocations: 144059
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 101846
Total APNIC prefixes after maximum aggregation: 32701
APNIC Deaggregation factor: 3.11
Prefixes being announced from the APNIC address blocks: 102276
Unique aggregates announced from the APNIC address blocks: 42093
APNIC Region origin ASes present in the Internet Routing Table: 4713
APNIC Prefixes per ASN: 21.70
APNIC Region origin ASes announcing only one prefix: 1240
APNIC Region transit ASes present in the Internet Routing Table: 752
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 243
Number of APNIC addresses announced to Internet: 704055168
Equivalent to 41 /8s, 247 /16s and 7 /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: 152288
Total ARIN prefixes after maximum aggregation: 77420
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 153251
Unique aggregates announced from the ARIN address blocks: 68354
ARIN Region origin ASes present in the Internet Routing Table: 15188
ARIN Prefixes per ASN: 10.09
ARIN Region origin ASes announcing only one prefix: 5754
ARIN Region transit ASes present in the Internet Routing Table: 1599
Average ARIN Region AS path length visible: 4.0
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: 1070644608
Equivalent to 63 /8s, 208 /16s and 189 /24s
Percentage of available ARIN address space announced: 56.6
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: 103875
Total RIPE prefixes after maximum aggregation: 55073
RIPE Deaggregation factor: 1.89
Prefixes being announced from the RIPE address blocks: 106098
Unique aggregates announced from the RIPE address blocks: 67054
RIPE Region origin ASes present in the Internet Routing Table: 16647
RIPE Prefixes per ASN: 6.37
RIPE Region origin ASes announcing only one prefix: 8073
RIPE Region transit ASes present in the Internet Routing Table: 2689
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 27
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1694
Number of RIPE addresses announced to Internet: 635393668
Equivalent to 37 /8s, 223 /16s and 86 /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: 41993
Total LACNIC prefixes after maximum aggregation: 8342
LACNIC Deaggregation factor: 5.03
Prefixes being announced from the LACNIC address blocks: 44613
Unique aggregates announced from the LACNIC address blocks: 21657
LACNIC Region origin ASes present in the Internet Routing Table: 1608
LACNIC Prefixes per ASN: 27.74
LACNIC Region origin ASes announcing only one prefix: 429
LACNIC Region transit ASes present in the Internet Routing Table: 310
Average LACNIC Region AS path length visible: 4.6
Max LACNIC Region AS path length visible: 25
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 612
Number of LACNIC addresses announced to Internet: 111736744
Equivalent to 6 /8s, 168 /16s and 247 /24s
Percentage of available LACNIC address space announced: 66.6
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: 9191
Total AfriNIC prefixes after maximum aggregation: 2121
AfriNIC Deaggregation factor: 4.33
Prefixes being announced from the AfriNIC address blocks: 9609
Unique aggregates announced from the AfriNIC address blocks: 3242
AfriNIC Region origin ASes present in the Internet Routing Table: 548
AfriNIC Prefixes per ASN: 17.53
AfriNIC Region origin ASes announcing only one prefix: 171
AfriNIC Region transit ASes present in the Internet Routing Table: 124
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: 5
Number of AfriNIC addresses announced to Internet: 40489728
Equivalent to 2 /8s, 105 /16s and 211 /24s
Percentage of available AfriNIC address space announced: 40.2
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 2689 11116 1201 Korea Telecom (KIX)
17974 2146 558 79 PT TELEKOMUNIKASI INDONESIA
7545 1690 301 87 TPG Internet Pty Ltd
4755 1612 388 162 TATA Communications formerly
9829 1300 1085 28 BSNL National Internet Backbo
9583 1165 87 507 Sify Limited
7552 1124 1062 11 Vietel Corporation
4808 1100 2053 318 CNCGROUP IP network: China169
24560 1036 385 165 Bharti Airtel Ltd., Telemedia
9498 978 291 65 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 3392 3789 188 bellsouth.net, inc.
7029 3260 986 161 Windstream Communications Inc
18566 2089 382 182 Covad Communications
1785 1931 681 132 PaeTec Communications, Inc.
22773 1656 2911 121 Cox Communications, Inc.
20115 1651 1573 616 Charter Communications
4323 1575 1043 384 Time Warner Telecom
30036 1382 264 783 Mediacom Communications Corp
7018 1259 10029 824 AT&T WorldNet Services
11492 1190 216 356 Cable One
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 1628 544 16 Corbina telecom
2118 1288 97 14 EUnet/RELCOM Autonomous Syste
12479 781 731 91 Uni2 Autonomous System
34984 725 189 176 BILISIM TELEKOM
6830 711 2292 445 UPC Distribution Services
31148 695 37 9 FreeNet ISP
20940 685 220 527 Akamai Technologies European
8551 579 364 61 Bezeq International
13188 504 100 10 Educational Network
3320 496 8443 408 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 1989 1214 55 NET Servicos de Comunicao S.A
10620 1983 345 204 TVCABLE BOGOTA
6503 1531 418 66 AVANTEL, S.A.
8151 1489 3065 342 UniNet S.A. de C.V.
7303 1453 933 193 Telecom Argentina Stet-France
27947 709 74 94 Telconet S.A
11172 643 91 74 Servicios Alestra S.A de C.V
3816 589 246 90 Empresa Nacional de Telecomun
22047 583 326 15 VTR PUNTO NET S.A.
14117 567 65 59 Telefonica del Sur 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 1222 958 13 TEDATA
24863 864 274 32 LINKdotNET AS number
6713 504 649 18 Itissalat Al-MAGHRIB
24835 286 80 8 RAYA Telecom - Egypt
3741 262 905 223 The Internet Solution
33776 199 12 21 Starcomms Nigeria Limited
12258 197 28 62 Vodacom Internet Company
16637 167 664 87 MTN Network Solutions
29975 167 571 19 Vodacom
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 3392 3789 188 bellsouth.net, inc.
7029 3260 986 161 Windstream Communications Inc
4766 2689 11116 1201 Korea Telecom (KIX)
17974 2146 558 79 PT TELEKOMUNIKASI INDONESIA
18566 2089 382 182 Covad Communications
28573 1989 1214 55 NET Servicos de Comunicao S.A
10620 1983 345 204 TVCABLE BOGOTA
1785 1931 681 132 PaeTec Communications, Inc.
7545 1690 301 87 TPG Internet Pty Ltd
22773 1656 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 3260 3099 Windstream Communications Inc
17974 2146 2067 PT TELEKOMUNIKASI INDONESIA
28573 1989 1934 NET Servicos de Comunicao S.A
18566 2089 1907 Covad Communications
1785 1931 1799 PaeTec Communications, Inc.
10620 1983 1779 TVCABLE BOGOTA
8402 1628 1612 Corbina telecom
7545 1690 1603 TPG Internet Pty Ltd
22773 1656 1535 Cox Communications, Inc.
4766 2689 1488 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
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
27.112.114.0/24 23884 Proimage Engineering and Comm
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
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
/13:469 /14:841 /15:1521 /16:12308 /17:6376 /18:10769
/19:20908 /20:29682 /21:31424 /22:41182 /23:39084 /24:217243
/25:1224 /26:1473 /27:857 /28:169 /29:65 /30:18
/31:0 /32:23
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2632 3260 Windstream Communications Inc
18566 2039 2089 Covad Communications
6389 1871 3392 bellsouth.net, inc.
8402 1323 1628 Corbina telecom
30036 1319 1382 Mediacom Communications Corp
11492 1153 1190 Cable One
22773 1087 1656 Cox Communications, Inc.
6503 1058 1531 AVANTEL, S.A.
1785 1042 1931 PaeTec Communications, Inc.
8452 998 1222 TEDATA
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:574 2:735 3:1 4:13 5:131 6:3
8:433 12:2008 13:1 14:636 15:12 16:3
17:5 20:24 23:180 24:1776 27:1313 31:998
32:56 33:2 34:2 36:9 37:591 38:821
39:1 40:128 41:3062 42:142 44:3 46:1470
47:2 49:418 50:547 52:13 54:13 55:6
56:1 57:34 58:978 59:528 60:249 61:1297
62:967 63:2037 64:4257 65:2255 66:4486 67:2051
68:1154 69:3191 70:980 71:510 72:1837 74:2594
75:475 76:332 77:931 78:887 79:487 80:1213
81:947 82:660 83:529 84:494 85:1171 86:432
87:934 88:341 89:1749 90:301 91:5010 92:580
93:1360 94:1596 95:1220 96:379 97:318 98:889
99:39 100:19 101:253 103:1235 106:101 107:188
108:363 109:1428 110:785 111:940 112:420 113:634
114:653 115:904 116:930 117:729 118:926 119:1228
120:352 121:809 122:1674 123:1084 124:1397 125:1267
128:554 129:188 130:263 131:615 132:300 133:22
134:244 135:61 136:217 137:240 138:337 139:175
140:494 141:266 142:429 143:370 144:529 145:77
146:518 147:288 148:769 149:318 150:157 151:182
152:474 153:176 154:17 155:433 156:220 157:382
158:191 159:621 160:342 161:268 162:376 163:192
164:658 165:415 166:584 167:479 168:908 169:126
170:893 171:145 172:5 173:1730 174:617 175:438
176:564 177:924 178:1533 180:1290 181:99 182:1025
183:239 184:533 185:1 186:1918 187:1079 188:1355
189:1590 190:5739 192:6010 193:5521 194:4532 195:3430
196:1189 197:170 198:3673 199:4848 200:5911 201:1977
202:8701 203:8638 204:4325 205:2532 206:2800 207:2801
208:4028 209:3618 210:2780 211:1549 212:2003 213:1908
214:880 215:82 216:5071 217:1554 218:552 219:338
220:1237 221:568 222:337 223:357
End of report
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