[afnog] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri May 18 19:03:46 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 19 May, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 409230
Prefixes after maximum aggregation: 173889
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 199573
Total ASes present in the Internet Routing Table: 41033
Prefixes per ASN: 9.97
Origin-only ASes present in the Internet Routing Table: 33202
Origin ASes announcing only one prefix: 15654
Transit ASes present in the Internet Routing Table: 5481
Transit-only ASes present in the Internet Routing Table: 137
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 30
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 365
Unregistered ASNs in the Routing Table: 132
Number of 32-bit ASNs allocated by the RIRs: 2716
Number of 32-bit ASNs visible in the Routing Table: 2350
Prefixes from 32-bit ASNs in the Routing Table: 5960
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 106
Number of addresses announced to Internet: 2550061936
Equivalent to 151 /8s, 254 /16s and 219 /24s
Percentage of available address space announced: 68.8
Percentage of allocated address space announced: 68.9
Percentage of available address space allocated: 99.9
Percentage of address space in use by end-sites: 92.7
Total number of prefixes smaller than registry allocations: 174827
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 100170
Total APNIC prefixes after maximum aggregation: 32430
APNIC Deaggregation factor: 3.09
Prefixes being announced from the APNIC address blocks: 96619
Unique aggregates announced from the APNIC address blocks: 39919
APNIC Region origin ASes present in the Internet Routing Table: 4690
APNIC Prefixes per ASN: 20.60
APNIC Region origin ASes announcing only one prefix: 1242
APNIC Region transit ASes present in the Internet Routing Table: 728
Average APNIC Region AS path length visible: 4.7
Max APNIC Region AS path length visible: 22
Number of APNIC region 32-bit ASNs visible in the Routing Table: 212
Number of APNIC addresses announced to Internet: 644826304
Equivalent to 38 /8s, 111 /16s and 68 /24s
Percentage of available APNIC address space announced: 81.8
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: 151240
Total ARIN prefixes after maximum aggregation: 76711
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 121762
Unique aggregates announced from the ARIN address blocks: 50992
ARIN Region origin ASes present in the Internet Routing Table: 15113
ARIN Prefixes per ASN: 8.06
ARIN Region origin ASes announcing only one prefix: 5744
ARIN Region transit ASes present in the Internet Routing Table: 1595
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: 16
Number of ARIN addresses announced to Internet: 812257216
Equivalent to 48 /8s, 106 /16s and 15 /24s
Percentage of available ARIN address space announced: 64.8
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: 101103
Total RIPE prefixes after maximum aggregation: 54239
RIPE Deaggregation factor: 1.86
Prefixes being announced from the RIPE address blocks: 93267
Unique aggregates announced from the RIPE address blocks: 58890
RIPE Region origin ASes present in the Internet Routing Table: 16571
RIPE Prefixes per ASN: 5.63
RIPE Region origin ASes announcing only one prefix: 8060
RIPE Region transit ASes present in the Internet Routing Table: 2649
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 30
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1563
Number of RIPE addresses announced to Internet: 513346312
Equivalent to 30 /8s, 153 /16s and 11 /24s
Percentage of available RIPE address space announced: 82.7
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: 41527
Total LACNIC prefixes after maximum aggregation: 8282
LACNIC Deaggregation factor: 5.01
Prefixes being announced from the LACNIC address blocks: 41554
Unique aggregates announced from the LACNIC address blocks: 20491
LACNIC Region origin ASes present in the Internet Routing Table: 1596
LACNIC Prefixes per ASN: 26.04
LACNIC Region origin ASes announcing only one prefix: 439
LACNIC Region transit ASes present in the Internet Routing Table: 300
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 21
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 554
Number of LACNIC addresses announced to Internet: 101104712
Equivalent to 6 /8s, 6 /16s and 188 /24s
Percentage of available LACNIC address space announced: 67.0
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: 9047
Total AfriNIC prefixes after maximum aggregation: 2163
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 7073
Unique aggregates announced from the AfriNIC address blocks: 2216
AfriNIC Region origin ASes present in the Internet Routing Table: 540
AfriNIC Prefixes per ASN: 13.10
AfriNIC Region origin ASes announcing only one prefix: 169
AfriNIC Region transit ASes present in the Internet Routing Table: 120
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: 31790080
Equivalent to 1 /8s, 229 /16s and 20 /24s
Percentage of available AfriNIC address space announced: 47.4
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 2608 11113 1101 Korea Telecom (KIX)
17974 1924 530 80 PT TELEKOMUNIKASI INDONESIA
7545 1679 301 86 TPG Internet Pty Ltd
4755 1577 385 155 TATA Communications formerly
9829 1296 1085 28 BSNL National Internet Backbo
7552 1173 1062 11 Vietel Corporation
9583 1157 87 500 Sify Limited
4808 1109 2051 318 CNCGROUP IP network: China169
24560 1027 385 167 Bharti Airtel Ltd., Telemedia
9498 964 291 64 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 3414 3807 193 bellsouth.net, inc.
7029 3366 985 158 Windstream Communications Inc
18566 2094 382 177 Covad Communications
1785 1905 681 131 PaeTec Communications, Inc.
20115 1637 1566 619 Charter Communications
22773 1607 2911 121 Cox Communications, Inc.
4323 1584 1042 383 Time Warner Telecom
30036 1417 263 754 Mediacom Communications Corp
7018 1223 10024 821 AT&T WorldNet Services
11492 1186 216 364 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 1673 544 16 Corbina telecom
34984 696 188 172 BILISIM TELEKOM
31148 685 37 9 FreeNet ISP
12479 681 671 67 Uni2 Autonomous System
2118 658 97 14 EUnet/RELCOM Autonomous Syste
20940 658 216 512 Akamai Technologies European
6830 655 2215 426 UPC Distribution Services
8551 568 360 80 Bezeq International
3320 486 8442 402 Deutsche Telekom AG
3292 472 2108 407 TDC Tele Danmark
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 1909 339 180 TVCABLE BOGOTA
28573 1866 1153 59 NET Servicos de Comunicao S.A
6503 1527 418 65 AVANTEL, S.A.
8151 1484 3027 342 UniNet S.A. de C.V.
7303 1435 901 191 Telecom Argentina Stet-France
26615 902 760 32 Tim Brasil S.A.
27947 690 73 95 Telconet S.A
11172 642 91 73 Servicios Alestra S.A de C.V
22047 582 326 15 VTR PUNTO NET S.A.
3816 578 244 98 Empresa Nacional de Telecomun
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 1196 957 12 TEDATA
24863 845 274 35 LINKdotNET AS number
6713 497 649 18 Itissalat Al-MAGHRIB
3741 262 905 223 The Internet Solution
33776 203 12 21 Starcomms Nigeria Limited
12258 197 28 62 Vodacom Internet Company
24835 179 80 8 RAYA Telecom - Egypt
16637 170 666 82 MTN Network Solutions
15706 164 32 6 Sudatel Internet Exchange Aut
29571 157 15 16 Ci Telecom Autonomous system
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 3414 3807 193 bellsouth.net, inc.
7029 3366 985 158 Windstream Communications Inc
4766 2608 11113 1101 Korea Telecom (KIX)
18566 2094 382 177 Covad Communications
17974 1924 530 80 PT TELEKOMUNIKASI INDONESIA
10620 1909 339 180 TVCABLE BOGOTA
1785 1905 681 131 PaeTec Communications, Inc.
28573 1866 1153 59 NET Servicos de Comunicao S.A
7545 1679 301 86 TPG Internet Pty Ltd
8402 1673 544 16 Corbina telecom
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 3366 3208 Windstream Communications Inc
18566 2094 1917 Covad Communications
17974 1924 1844 PT TELEKOMUNIKASI INDONESIA
28573 1866 1807 NET Servicos de Comunicao S.A
1785 1905 1774 PaeTec Communications, Inc.
10620 1909 1729 TVCABLE BOGOTA
8402 1673 1657 Corbina telecom
7545 1679 1593 TPG Internet Pty Ltd
4766 2608 1507 Korea Telecom (KIX)
22773 1607 1486 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
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
32873 UNALLOCATED 12.46.102.0/24 10912 InterNAP Network Ser
14764 UNALLOCATED 12.108.237.0/24 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
41.222.79.0/24 36938 >>UNKNOWN<<
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 /10:29 /11:81 /12:235
/13:460 /14:832 /15:1495 /16:12258 /17:6266 /18:10598
/19:20694 /20:29440 /21:30649 /22:40198 /23:38324 /24:213890
/25:1218 /26:1450 /27:809 /28:168 /29:68 /30:17
/31:0 /32:20
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3023 3366 Windstream Communications Inc
6389 2133 3414 bellsouth.net, inc.
18566 2043 2094 Covad Communications
10620 1735 1909 TVCABLE BOGOTA
8402 1651 1673 Corbina telecom
30036 1358 1417 Mediacom Communications Corp
6503 1285 1527 AVANTEL, S.A.
11492 1149 1186 Cable One
7011 1070 1185 Citizens Utilities
1785 1063 1905 PaeTec Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:542 2:686 4:13 5:11 6:3 8:414
12:2005 13:1 14:610 15:12 16:3 17:5
20:23 23:172 24:1772 27:1286 31:961 32:57
33:2 34:2 36:8 37:469 38:808 40:121
41:3097 42:133 44:3 46:1422 47:3 49:404
50:550 52:13 54:10 55:9 56:3 57:33
58:958 59:484 60:253 61:1228 62:995 63:2051
64:4179 65:2252 66:4473 67:2011 68:1164 69:3202
70:905 71:489 72:1823 74:2598 75:491 76:327
77:941 78:982 79:488 80:1211 81:911 82:664
83:553 84:487 85:1221 86:436 87:917 88:333
89:1708 90:290 91:4845 92:547 93:1321 94:1527
95:1181 96:367 97:313 98:878 99:38 100:7
101:190 103:1081 106:103 107:185 108:295 109:1329
110:765 111:921 112:410 113:603 114:623 115:834
116:932 117:715 118:910 119:1229 120:355 121:699
122:1658 123:1103 124:1382 125:1252 128:561 129:195
130:250 131:634 132:177 133:22 134:248 135:62
136:214 137:240 138:359 139:183 140:493 141:244
142:414 143:566 144:524 145:70 146:503 147:297
148:770 149:296 150:191 151:177 152:469 153:172
154:12 155:402 156:223 157:382 158:183 159:551
160:340 161:265 162:347 163:188 164:606 165:398
166:571 167:469 168:863 169:126 170:868 171:131
172:4 173:1743 174:580 175:431 176:586 177:754
178:1369 180:1214 181:83 182:1000 183:296 184:494
185:1 186:2302 187:1079 188:1275 189:1806 190:5511
192:5999 193:5444 194:4181 195:3219 196:1289 197:136
198:3658 199:4628 200:5840 201:1935 202:8584 203:8597
204:4335 205:2544 206:2765 207:2801 208:4062 209:3625
210:2754 211:1518 212:2030 213:1941 214:870 215:103
216:5096 217:1549 218:544 219:314 220:1238 221:557
222:324 223:337
End of report
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