[afnog] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Jun 8 19:03:20 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 09 Jun, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 413039
Prefixes after maximum aggregation: 175026
Deaggregation factor: 2.36
Unique aggregates announced to Internet: 201617
Total ASes present in the Internet Routing Table: 41269
Prefixes per ASN: 10.01
Origin-only ASes present in the Internet Routing Table: 33286
Origin ASes announcing only one prefix: 15684
Transit ASes present in the Internet Routing Table: 5524
Transit-only ASes present in the Internet Routing Table: 140
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 28
Max AS path prepend of ASN ( 36992) 22
Prefixes from unregistered ASNs in the Routing Table: 395
Unregistered ASNs in the Routing Table: 138
Number of 32-bit ASNs allocated by the RIRs: 2815
Number of 32-bit ASNs visible in the Routing Table: 2459
Prefixes from 32-bit ASNs in the Routing Table: 6257
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 158
Number of addresses announced to Internet: 2561425708
Equivalent to 152 /8s, 172 /16s and 65 /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: 92.8
Total number of prefixes smaller than registry allocations: 171497
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 100699
Total APNIC prefixes after maximum aggregation: 32592
APNIC Deaggregation factor: 3.09
Prefixes being announced from the APNIC address blocks: 97153
Unique aggregates announced from the APNIC address blocks: 40289
APNIC Region origin ASes present in the Internet Routing Table: 4708
APNIC Prefixes per ASN: 20.64
APNIC Region origin ASes announcing only one prefix: 1257
APNIC Region transit ASes present in the Internet Routing Table: 739
Average APNIC Region AS path length visible: 4.7
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 224
Number of APNIC addresses announced to Internet: 648549440
Equivalent to 38 /8s, 168 /16s and 20 /24s
Percentage of available APNIC address space announced: 82.2
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, 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: 151599
Total ARIN prefixes after maximum aggregation: 77134
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 121982
Unique aggregates announced from the ARIN address blocks: 51397
ARIN Region origin ASes present in the Internet Routing Table: 15161
ARIN Prefixes per ASN: 8.05
ARIN Region origin ASes announcing only one prefix: 5758
ARIN Region transit ASes present in the Internet Routing Table: 1601
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: 816518336
Equivalent to 48 /8s, 171 /16s and 20 /24s
Percentage of available ARIN address space announced: 65.1
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: 102916
Total RIPE prefixes after maximum aggregation: 54777
RIPE Deaggregation factor: 1.88
Prefixes being announced from the RIPE address blocks: 94838
Unique aggregates announced from the RIPE address blocks: 59810
RIPE Region origin ASes present in the Internet Routing Table: 16620
RIPE Prefixes per ASN: 5.71
RIPE Region origin ASes announcing only one prefix: 8068
RIPE Region transit ASes present in the Internet Routing Table: 2663
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 28
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1626
Number of RIPE addresses announced to Internet: 515524868
Equivalent to 30 /8s, 186 /16s and 73 /24s
Percentage of available RIPE address space announced: 83.0
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,
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: 41994
Total LACNIC prefixes after maximum aggregation: 8290
LACNIC Deaggregation factor: 5.07
Prefixes being announced from the LACNIC address blocks: 42193
Unique aggregates announced from the LACNIC address blocks: 20602
LACNIC Region origin ASes present in the Internet Routing Table: 1601
LACNIC Prefixes per ASN: 26.35
LACNIC Region origin ASes announcing only one prefix: 436
LACNIC Region transit ASes present in the Internet Routing Table: 306
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 587
Number of LACNIC addresses announced to Internet: 101954184
Equivalent to 6 /8s, 19 /16s and 178 /24s
Percentage of available LACNIC address space announced: 67.5
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: 9388
Total AfriNIC prefixes after maximum aggregation: 2169
AfriNIC Deaggregation factor: 4.33
Prefixes being announced from the AfriNIC address blocks: 7442
Unique aggregates announced from the AfriNIC address blocks: 2195
AfriNIC Region origin ASes present in the Internet Routing Table: 544
AfriNIC Prefixes per ASN: 13.68
AfriNIC Region origin ASes announcing only one prefix: 165
AfriNIC Region transit ASes present in the Internet Routing Table: 120
Average AfriNIC Region AS path length visible: 4.5
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: 31836160
Equivalent to 1 /8s, 229 /16s and 200 /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 2637 11113 1122 Korea Telecom (KIX)
17974 1928 530 81 PT TELEKOMUNIKASI INDONESIA
7545 1682 301 86 TPG Internet Pty Ltd
4755 1590 385 155 TATA Communications formerly
9829 1297 1085 28 BSNL National Internet Backbo
9583 1175 87 502 Sify Limited
7552 1173 1062 11 Vietel Corporation
4808 1103 2049 314 CNCGROUP IP network: China169
24560 1029 385 163 Bharti Airtel Ltd., Telemedia
9498 965 291 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 3409 3791 192 bellsouth.net, inc.
7029 3250 986 159 Windstream Communications Inc
18566 2091 382 181 Covad Communications
1785 1917 681 131 PaeTec Communications, Inc.
20115 1646 1570 616 Charter Communications
22773 1644 2911 121 Cox Communications, Inc.
4323 1574 1043 385 Time Warner Telecom
30036 1426 265 754 Mediacom Communications Corp
7018 1224 10013 823 AT&T WorldNet Services
11492 1189 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 1740 544 16 Corbina telecom
2118 1226 97 14 EUnet/RELCOM Autonomous Syste
12479 718 699 84 Uni2 Autonomous System
34984 705 188 171 BILISIM TELEKOM
31148 684 37 9 FreeNet ISP
20940 667 219 523 Akamai Technologies European
6830 657 2217 426 UPC Distribution Services
8551 580 364 61 Bezeq International
3320 489 8442 402 Deutsche Telekom AG
3292 474 2108 408 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 1932 342 205 TVCABLE BOGOTA
28573 1923 1184 48 NET Servicos de Comunicao S.A
6503 1532 418 65 AVANTEL, S.A.
8151 1496 3084 336 UniNet S.A. de C.V.
7303 1437 901 193 Telecom Argentina Stet-France
26615 903 760 32 Tim Brasil S.A.
27947 700 73 94 Telconet S.A
11172 644 91 73 Servicios Alestra S.A de C.V
3816 584 247 89 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 1391 958 13 TEDATA
24863 846 274 35 LINKdotNET AS number
6713 497 649 18 Itissalat Al-MAGHRIB
24835 321 80 8 RAYA Telecom - Egypt
3741 262 905 223 The Internet Solution
33776 210 12 21 Starcomms Nigeria Limited
12258 197 28 62 Vodacom Internet Company
16637 170 664 87 MTN Network Solutions
29571 157 15 16 Ci Telecom Autonomous system
36923 157 20 4 Swift Networks Limited
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 3409 3791 192 bellsouth.net, inc.
7029 3250 986 159 Windstream Communications Inc
4766 2637 11113 1122 Korea Telecom (KIX)
18566 2091 382 181 Covad Communications
10620 1932 342 205 TVCABLE BOGOTA
17974 1928 530 81 PT TELEKOMUNIKASI INDONESIA
28573 1923 1184 48 NET Servicos de Comunicao S.A
1785 1917 681 131 PaeTec Communications, Inc.
8402 1740 544 16 Corbina telecom
7545 1682 301 86 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 3250 3091 Windstream Communications Inc
18566 2091 1910 Covad Communications
28573 1923 1875 NET Servicos de Comunicao S.A
17974 1928 1847 PT TELEKOMUNIKASI INDONESIA
1785 1917 1786 PaeTec Communications, Inc.
10620 1932 1727 TVCABLE BOGOTA
8402 1740 1724 Corbina telecom
7545 1682 1596 TPG Internet Pty Ltd
22773 1644 1523 Cox Communications, Inc.
4766 2637 1515 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
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
41.188.64.0/18 29544 Mauritanian Telecommunication
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 /9:13 /10:28 /11:82 /12:236
/13:461 /14:832 /15:1505 /16:12298 /17:6303 /18:10641
/19:20776 /20:29530 /21:31054 /22:40785 /23:38492 /24:216195
/25:1236 /26:1449 /27:827 /28:172 /29:66 /30:17
/31:0 /32:22
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2910 3250 Windstream Communications Inc
6389 2129 3409 bellsouth.net, inc.
18566 2040 2091 Covad Communications
8402 1718 1740 Corbina telecom
30036 1366 1426 Mediacom Communications Corp
6503 1222 1532 AVANTEL, S.A.
8452 1190 1391 TEDATA
11492 1152 1189 Cable One
22773 1089 1644 Cox Communications, Inc.
7011 1073 1188 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:555 2:746 3:1 4:13 5:51 6:3
8:425 12:2012 13:1 14:619 15:12 16:3
17:5 20:23 23:180 24:1778 27:1306 31:977
32:56 33:2 34:2 36:9 37:684 38:812
40:127 41:3269 42:135 44:3 46:1423 47:2
49:401 50:555 52:13 54:12 55:8 56:1
57:33 58:960 59:497 60:259 61:1212 62:981
63:2008 64:4233 65:2249 66:4451 67:2028 68:1158
69:3174 70:950 71:508 72:1824 74:2591 75:471
76:327 77:956 78:973 79:478 80:1225 81:939
82:663 83:543 84:491 85:1192 86:432 87:918
88:334 89:1726 90:293 91:4919 92:557 93:1391
94:1566 95:1213 96:367 97:315 98:900 99:38
100:8 101:261 103:1133 106:95 107:186 108:330
109:1359 110:775 111:923 112:417 113:616 114:629
115:846 116:956 117:721 118:923 119:1232 120:358
121:695 122:1668 123:1102 124:1388 125:1261 128:559
129:202 130:247 131:632 132:288 133:22 134:242
135:61 136:215 137:239 138:358 139:185 140:494
141:252 142:417 143:375 144:532 145:72 146:508
147:293 148:776 149:312 150:164 151:179 152:469
153:174 154:14 155:446 156:222 157:381 158:186
159:578 160:345 161:265 162:347 163:190 164:638
165:404 166:592 167:471 168:863 169:127 170:878
171:136 172:4 173:1766 174:604 175:433 176:540
177:821 178:1381 180:1234 181:91 182:1050 183:228
184:528 185:1 186:2318 187:1122 188:1340 189:1827
190:5601 192:5992 193:5516 194:4532 195:3390 196:1224
197:151 198:3664 199:4763 200:5896 201:1951 202:8618
203:8565 204:4347 205:2509 206:2772 207:2801 208:4007
209:3608 210:2761 211:1545 212:2034 213:1931 214:874
215:98 216:5102 217:1548 218:553 219:313 220:1235
221:569 222:317 223:321
End of report
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