* BGP Routing Table Analysis Reports *
Routing Table Report 04:00 +10GMT Mon 20 May, 2013
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 454687
Prefixes after maximum aggregation: 185384
Deaggregation factor: 2.45
Unique aggregates announced to Internet: 224747
Total ASes present in the Internet Routing Table: 44093
Prefixes per ASN: 10.31
Origin-only ASes present in the Internet Routing Table: 34610
Origin ASes announcing only one prefix: 16096
Transit ASes present in the Internet Routing Table: 5834
Transit-only ASes present in the Internet Routing Table: 151
Average AS path length visible in the Internet Routing Table: 4.6
Max AS path length visible: 30
Max AS path prepend of ASN ( 19037) 22
Prefixes from unregistered ASNs in the Routing Table: 319
Unregistered ASNs in the Routing Table: 136
Number of 32-bit ASNs allocated by the RIRs: 4770
Number of 32-bit ASNs visible in the Routing Table: 3649
Prefixes from 32-bit ASNs in the Routing Table: 10427
Special use prefixes present in the Routing Table: 23
Prefixes being announced from unallocated address space: 252
Number of addresses announced to Internet: 2616553196
Equivalent to 155 /8s, 245 /16s and 110 /24s
Percentage of available address space announced: 70.7
Percentage of allocated address space announced: 70.7
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 94.5
Total number of prefixes smaller than registry allocations: 160258
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 109186
Total APNIC prefixes after maximum aggregation: 33496
APNIC Deaggregation factor: 3.26
Prefixes being announced from the APNIC address blocks: 110570
Unique aggregates announced from the APNIC address blocks: 44980
APNIC Region origin ASes present in the Internet Routing Table: 4843
APNIC Prefixes per ASN: 22.83
APNIC Region origin ASes announcing only one prefix: 1226
APNIC Region transit ASes present in the Internet Routing Table: 824
Average APNIC Region AS path length visible: 4.7
Max APNIC Region AS path length visible: 30
Number of APNIC region 32-bit ASNs visible in the Routing Table: 530
Number of APNIC addresses announced to Internet: 722383840
Equivalent to 43 /8s, 14 /16s and 179 /24s
Percentage of available APNIC address space announced: 84.4
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: 159508
Total ARIN prefixes after maximum aggregation: 80266
ARIN Deaggregation factor: 1.99
Prefixes being announced from the ARIN address blocks: 160073
Unique aggregates announced from the ARIN address blocks: 73366
ARIN Region origin ASes present in the Internet Routing Table: 15695
ARIN Prefixes per ASN: 10.20
ARIN Region origin ASes announcing only one prefix: 5973
ARIN Region transit ASes present in the Internet Routing Table: 1628
Average ARIN Region AS path length visible: 4.1
Max ARIN Region AS path length visible: 27
Number of ARIN region 32-bit ASNs visible in the Routing Table: 19
Number of ARIN addresses announced to Internet: 1062070656
Equivalent to 63 /8s, 77 /16s and 233 /24s
Percentage of available ARIN address space announced: 56.2
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: 117055
Total RIPE prefixes after maximum aggregation: 59788
RIPE Deaggregation factor: 1.96
Prefixes being announced from the RIPE address blocks: 120633
Unique aggregates announced from the RIPE address blocks: 77957
RIPE Region origin ASes present in the Internet Routing Table: 17171
RIPE Prefixes per ASN: 7.03
RIPE Region origin ASes announcing only one prefix: 8142
RIPE Region transit ASes present in the Internet Routing Table: 2804
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 29
Number of RIPE region 32-bit ASNs visible in the Routing Table: 2333
Number of RIPE addresses announced to Internet: 656198756
Equivalent to 39 /8s, 28 /16s and 204 /24s
Percentage of available RIPE address space announced: 95.4
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: 47635
Total LACNIC prefixes after maximum aggregation: 9306
LACNIC Deaggregation factor: 5.12
Prefixes being announced from the LACNIC address blocks: 51819
Unique aggregates announced from the LACNIC address blocks: 24363
LACNIC Region origin ASes present in the Internet Routing Table: 1935
LACNIC Prefixes per ASN: 26.78
LACNIC Region origin ASes announcing only one prefix: 573
LACNIC Region transit ASes present in the Internet Routing Table: 352
Average LACNIC Region AS path length visible: 4.8
Max LACNIC Region AS path length visible: 28
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 761
Number of LACNIC addresses announced to Internet: 129137960
Equivalent to 7 /8s, 178 /16s and 125 /24s
Percentage of available LACNIC address space announced: 77.0
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-62463, 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: 10790
Total AfriNIC prefixes after maximum aggregation: 2488
AfriNIC Deaggregation factor: 4.34
Prefixes being announced from the AfriNIC address blocks: 11340
Unique aggregates announced from the AfriNIC address blocks: 3855
AfriNIC Region origin ASes present in the Internet Routing Table: 622
AfriNIC Prefixes per ASN: 18.23
AfriNIC Region origin ASes announcing only one prefix: 182
AfriNIC Region transit ASes present in the Internet Routing Table: 133
Average AfriNIC Region AS path length visible: 4.7
Max AfriNIC Region AS path length visible: 18
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 6
Number of AfriNIC addresses announced to Internet: 46469632
Equivalent to 2 /8s, 197 /16s and 18 /24s
Percentage of available AfriNIC address space announced: 46.2
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 2958 11559 924 Korea Telecom (KIX)
17974 2513 839 90 PT TELEKOMUNIKASI INDONESIA
7545 1979 320 107 TPG Internet Pty Ltd
4755 1731 391 192 TATA Communications formerly
9829 1506 1205 40 BSNL National Internet Backbo
9583 1219 91 502 Sify Limited
7552 1171 1064 12 Vietel Corporation
4808 1121 2112 328 CNCGROUP IP network: China169
9498 1109 309 72 BHARTI Airtel Ltd.
24560 1069 393 166 Bharti Airtel Ltd., Telemedia
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 3020 3693 81 bellsouth.net, inc.
7029 2143 1265 211 Windstream Communications Inc
18566 2067 382 184 Covad Communications
1785 1989 677 123 PaeTec Communications, Inc.
22773 1975 2929 125 Cox Communications, Inc.
20115 1668 1607 616 Charter Communications
4323 1620 1139 401 Time Warner Telecom
30036 1324 295 641 Mediacom Communications Corp
7018 1312 10819 849 AT&T WorldNet Services
11492 1231 220 345 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 1824 544 16 Corbina telecom
2118 1309 97 13 EUnet/RELCOM Autonomous Syste
34984 1204 240 228 BILISIM TELEKOM
20940 832 286 659 Akamai Technologies European
13188 803 97 87 Educational Network
31148 792 39 22 FreeNet ISP
6830 770 2376 443 UPC Distribution Services
8551 770 370 43 Bezeq International
12479 687 782 67 Uni2 Autonomous System
34744 676 173 56 SC GVM SISTEM 2003 SRL
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 2734 1528 113 NET Servicos de Comunicao S.A
10620 2631 412 224 TVCABLE BOGOTA
7303 1723 1153 221 Telecom Argentina Stet-France
8151 1247 2705 395 UniNet S.A. de C.V.
6503 975 435 68 AVANTEL, S.A.
18881 941 780 19 Global Village Telecom
27947 839 89 98 Telconet S.A
3816 705 306 85 Empresa Nacional de Telecomun
7738 698 1370 35 Telecomunicacoes da Bahia S.A
11172 608 87 64 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
36998 1237 80 4 MOBITEL
24863 885 274 32 LINKdotNET AS number
6713 542 617 25 Itissalat Al-MAGHRIB
8452 445 956 9 TEDATA
24835 344 80 8 RAYA Telecom - Egypt
3741 261 906 220 The Internet Solution
15706 222 32 6 Sudatel Internet Exchange Aut
12258 193 28 67 Vodacom Internet Company
29975 191 667 21 Vodacom
36992 189 527 22 Etisalat MISR
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 3020 3693 81 bellsouth.net, inc.
4766 2958 11559 924 Korea Telecom (KIX)
28573 2734 1528 113 NET Servicos de Comunicao S.A
10620 2631 412 224 TVCABLE BOGOTA
17974 2513 839 90 PT TELEKOMUNIKASI INDONESIA
7029 2143 1265 211 Windstream Communications Inc
18566 2067 382 184 Covad Communications
1785 1989 677 123 PaeTec Communications, Inc.
7545 1979 320 107 TPG Internet Pty Ltd
22773 1975 2929 125 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
28573 2734 2621 NET Servicos de Comunicao S.A
17974 2513 2423 PT TELEKOMUNIKASI INDONESIA
10620 2631 2407 TVCABLE BOGOTA
4766 2958 2034 Korea Telecom (KIX)
7029 2143 1932 Windstream Communications Inc
18566 2067 1883 Covad Communications
7545 1979 1872 TPG Internet Pty Ltd
1785 1989 1866 PaeTec Communications, Inc.
22773 1975 1850 Cox Communications, Inc.
8402 1824 1808 Corbina telecom
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
30031 UNALLOCATED 12.27.122.0/24 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 12.45.103.0/24 209 Qwest
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
26064 UNALLOCATED 12.149.37.0/24 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
128.0.0.0/24 2876 Jump Management SRL
128.0.16.0/21 43568 RIPE Network Coordination Cen
128.0.24.0/21 41794 Altline LLC
128.0.46.0/23 39743 Mobimax Telecom SRL
128.0.52.0/24 60906 NETOPIA SRL
128.0.58.0/23 9050 RTD-ROMTELECOM Autonomous Sys
128.0.60.0/24 9050 RTD-ROMTELECOM Autonomous Sys
128.0.61.0/24 9050 RTD-ROMTELECOM Autonomous Sys
128.0.62.0/24 9050 RTD-ROMTELECOM Autonomous Sys
128.0.63.0/24 9050 RTD-ROMTELECOM Autonomous Sys
Complete listing at http://thyme.rand.apnic.net/current/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
64.185.224.0/24 27431 JTL Networks Inc.
64.185.225.0/24 27431 JTL Networks Inc.
64.185.226.0/24 27431 JTL Networks Inc.
64.185.227.0/24 27431 JTL Networks Inc.
64.185.228.0/24 27431 JTL Networks Inc.
64.185.229.0/24 27431 JTL Networks Inc.
64.185.230.0/24 27431 JTL Networks Inc.
64.185.231.0/24 27431 JTL Networks Inc.
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 /8:16 /9:13 /10:30 /11:88 /12:248
/13:485 /14:889 /15:1567 /16:12685 /17:6615 /18:11166
/19:22108 /20:31997 /21:34164 /22:47342 /23:42232 /24:239029
/25:1308 /26:1689 /27:867 /28:45 /29:67 /30:18
/31:0 /32:19
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 2018 2067 Covad Communications
6389 1733 3020 bellsouth.net, inc.
7029 1611 2143 Windstream Communications Inc
8402 1520 1824 Corbina telecom
22773 1284 1975 Cox Communications, Inc.
36998 1231 1237 MOBITEL
30036 1194 1324 Mediacom Communications Corp
11492 1192 1231 Cable One
1785 1062 1989 PaeTec Communications, Inc.
6983 1008 1134 ITC^Deltacom
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:806 2:811 3:3 4:15 5:881 6:7
8:558 12:1928 13:3 14:823 15:11 16:3
17:9 20:17 23:273 24:1769 27:1511 31:1277
32:43 33:2 34:5 36:28 37:1852 38:871
39:2 40:172 41:2767 42:192 44:6 46:1904
47:2 49:637 50:709 52:12 54:35 55:7
57:26 58:1148 59:573 60:313 61:1391 62:1109
63:2027 64:4329 65:2181 66:4358 67:2061 68:1128
69:3277 70:880 71:537 72:1919 74:2561 75:416
76:307 77:1081 78:1048 79:599 80:1252 81:986
82:623 83:569 84:530 85:1162 86:459 87:980
88:536 89:1789 90:163 91:5479 92:589 93:1703
94:1832 95:1491 96:513 97:344 98:1054 99:41
100:31 101:329 103:2594 105:519 106:153 107:209
108:520 109:1843 110:882 111:1053 112:517 113:799
114:710 115:954 116:912 117:793 118:1079 119:1287
120:405 121:725 122:1795 123:1209 124:1348 125:1353
128:637 129:224 130:325 131:653 132:343 133:149
134:262 135:66 136:221 137:261 138:344 139:197
140:208 141:327 142:549 143:372 144:483 145:93
146:512 147:407 148:694 149:373 150:157 151:570
152:418 153:199 154:43 155:394 156:264 157:398
158:280 159:728 160:339 161:426 162:439 163:218
164:594 165:448 166:300 167:587 168:1037 169:133
170:1024 171:178 172:22 173:1667 174:595 175:489
176:1291 177:2033 178:1871 179:7 180:1431 181:389
182:1210 183:380 184:676 185:439 186:2275 187:1314
188:2122 189:1357 190:6345 192:6618 193:5865 194:4629
195:3424 196:1337 197:899 198:4457 199:5312 200:5930
201:2243 202:8867 203:8843 204:4503 205:2571 206:2848
207:2893 208:4060 209:3635 210:2958 211:1559 212:2114
213:1946 214:907 215:98 216:5246 217:1606 218:616
219:330 220:1279 221:555 222:319 223:441
End of report
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