* BGP Routing Table Analysis Reports *
Routing Table Report 04:00 +10GMT Thu 17 May, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 407965
Prefixes after maximum aggregation: 173760
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 199348
Total ASes present in the Internet Routing Table: 41019
Prefixes per ASN: 9.95
Origin-only ASes present in the Internet Routing Table: 33190
Origin ASes announcing only one prefix: 15656
Transit ASes present in the Internet Routing Table: 5483
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: 64
Max AS path prepend of ASN ( 9902) 56
Prefixes from unregistered ASNs in the Routing Table: 373
Unregistered ASNs in the Routing Table: 134
Number of 32-bit ASNs allocated by the RIRs: 2699
Number of 32-bit ASNs visible in the Routing Table: 2346
Prefixes from 32-bit ASNs in the Routing Table: 5937
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 109
Number of addresses announced to Internet: 2548797424
Equivalent to 151 /8s, 235 /16s and 143 /24s
Percentage of available address space announced: 68.8
Percentage of allocated address space announced: 68.8
Percentage of available address space allocated: 99.9
Percentage of address space in use by end-sites: 92.6
Total number of prefixes smaller than registry allocations: 174394
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 100097
Total APNIC prefixes after maximum aggregation: 32432
APNIC Deaggregation factor: 3.09
Prefixes being announced from the APNIC address blocks: 96567
Unique aggregates announced from the APNIC address blocks: 39919
APNIC Region origin ASes present in the Internet Routing Table: 4691
APNIC Prefixes per ASN: 20.59
APNIC Region origin ASes announcing only one prefix: 1239
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: 211
Number of APNIC addresses announced to Internet: 644812992
Equivalent to 38 /8s, 111 /16s and 16 /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: 150934
Total ARIN prefixes after maximum aggregation: 76640
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 121697
Unique aggregates announced from the ARIN address blocks: 50872
ARIN Region origin ASes present in the Internet Routing Table: 15101
ARIN Prefixes per ASN: 8.06
ARIN Region origin ASes announcing only one prefix: 5742
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: 812174528
Equivalent to 48 /8s, 104 /16s and 204 /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: 100431
Total RIPE prefixes after maximum aggregation: 54167
RIPE Deaggregation factor: 1.85
Prefixes being announced from the RIPE address blocks: 92608
Unique aggregates announced from the RIPE address blocks: 58847
RIPE Region origin ASes present in the Internet Routing Table: 16568
RIPE Prefixes per ASN: 5.59
RIPE Region origin ASes announcing only one prefix: 8063
RIPE Region transit ASes present in the Internet Routing Table: 2651
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: 1561
Number of RIPE addresses announced to Internet: 513178184
Equivalent to 30 /8s, 150 /16s and 122 /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: 41321
Total LACNIC prefixes after maximum aggregation: 8289
LACNIC Deaggregation factor: 4.99
Prefixes being announced from the LACNIC address blocks: 41334
Unique aggregates announced from the LACNIC address blocks: 20452
LACNIC Region origin ASes present in the Internet Routing Table: 1598
LACNIC Prefixes per ASN: 25.87
LACNIC Region origin ASes announcing only one prefix: 439
LACNIC Region transit ASes present in the Internet Routing Table: 299
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: 553
Number of LACNIC addresses announced to Internet: 100350600
Equivalent to 5 /8s, 251 /16s and 58 /24s
Percentage of available LACNIC address space announced: 66.5
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: 9061
Total AfriNIC prefixes after maximum aggregation: 2167
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 7091
Unique aggregates announced from the AfriNIC address blocks: 2211
AfriNIC Region origin ASes present in the Internet Routing Table: 541
AfriNIC Prefixes per ASN: 13.11
AfriNIC Region origin ASes announcing only one prefix: 173
AfriNIC Region transit ASes present in the Internet Routing Table: 119
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: 31796992
Equivalent to 1 /8s, 229 /16s and 47 /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 2613 11117 1104 Korea Telecom (KIX)
17974 1923 530 80 PT TELEKOMUNIKASI INDONESIA
7545 1677 301 84 TPG Internet Pty Ltd
4755 1576 385 155 TATA Communications formerly
9829 1296 1085 28 BSNL National Internet Backbo
7552 1162 1062 11 Vietel Corporation
9583 1157 87 501 Sify Limited
4808 1109 2051 318 CNCGROUP IP network: China169
24560 1027 385 167 Bharti Airtel Ltd., Telemedia
9498 966 291 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 3370 985 158 Windstream Communications Inc
18566 2093 382 179 Covad Communications
1785 1905 681 131 PaeTec Communications, Inc.
20115 1637 1566 619 Charter Communications
22773 1606 2911 121 Cox Communications, Inc.
4323 1574 1042 383 Time Warner Telecom
30036 1417 263 753 Mediacom Communications Corp
7018 1220 10022 817 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 1712 544 16 Corbina telecom
34984 695 188 172 BILISIM TELEKOM
31148 685 37 9 FreeNet ISP
12479 679 671 69 Uni2 Autonomous System
20940 656 216 510 Akamai Technologies European
6830 655 2215 426 UPC Distribution Services
8551 567 360 80 Bezeq International
3320 486 8442 402 Deutsche Telekom AG
3292 472 2108 407 TDC Tele Danmark
8866 436 134 27 Bulgarian Telecommunication C
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 1867 335 176 TVCABLE BOGOTA
28573 1850 1153 59 NET Servicos de Comunicao S.A
6503 1525 418 65 AVANTEL, S.A.
8151 1482 3006 344 UniNet S.A. de C.V.
7303 1370 837 191 Telecom Argentina Stet-France
26615 903 761 33 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 579 244 99 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 1309 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 3370 985 158 Windstream Communications Inc
4766 2613 11117 1104 Korea Telecom (KIX)
18566 2093 382 179 Covad Communications
17974 1923 530 80 PT TELEKOMUNIKASI INDONESIA
1785 1905 681 131 PaeTec Communications, Inc.
10620 1867 335 176 TVCABLE BOGOTA
28573 1850 1153 59 NET Servicos de Comunicao S.A
8402 1712 544 16 Corbina telecom
7545 1677 301 84 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 3370 3212 Windstream Communications Inc
18566 2093 1914 Covad Communications
17974 1923 1843 PT TELEKOMUNIKASI INDONESIA
28573 1850 1791 NET Servicos de Comunicao S.A
1785 1905 1774 PaeTec Communications, Inc.
8402 1712 1696 Corbina telecom
10620 1867 1691 TVCABLE BOGOTA
7545 1677 1593 TPG Internet Pty Ltd
4766 2613 1509 Korea Telecom (KIX)
22773 1606 1485 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
5.35.176.0/21 49820 Pictura Imaginis B.V.
5.39.0.0/17 16276 AS for Ovh
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
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 /16:12248 /17:6243 /18:10575
/19:20684 /20:29362 /21:30587 /22:40059 /23:38294 /24:213008
/25:1218 /26:1449 /27:807 /28:163 /29:68 /30:17
/31:0 /32:20
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3027 3370 Windstream Communications Inc
6389 2133 3414 bellsouth.net, inc.
18566 2042 2093 Covad Communications
10620 1712 1867 TVCABLE BOGOTA
8402 1690 1712 Corbina telecom
30036 1358 1417 Mediacom Communications Corp
6503 1284 1525 AVANTEL, S.A.
11492 1149 1186 Cable One
8452 1111 1309 TEDATA
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)
----------------------------------------------
1:540 2:723 4:14 5:10 6:3 8:411
12:1996 13:1 14:610 15:12 16:3 17:5
20:23 23:169 24:1771 27:1305 31:955 32:57
33:2 34:2 36:8 37:473 38:810 40:121
41:3134 42:136 44:3 46:1425 47:3 49:405
50:550 52:13 54:10 55:9 56:3 57:32
58:957 59:482 60:253 61:1225 62:990 63:2055
64:4186 65:2248 66:4463 67:2012 68:1168 69:3205
70:905 71:489 72:1823 74:2592 75:493 76:324
77:939 78:982 79:495 80:1208 81:905 82:666
83:553 84:489 85:1222 86:438 87:917 88:334
89:1701 90:290 91:4838 92:544 93:1321 94:1518
95:1158 96:362 97:316 98:877 99:38 100:7
101:189 103:1074 106:103 107:187 108:287 109:1329
110:766 111:916 112:409 113:602 114:630 115:832
116:934 117:715 118:908 119:1225 120:354 121:692
122:1669 123:1103 124:1384 125:1254 128:555 129:196
130:252 131:630 132:178 133:22 134:248 135:62
136:214 137:178 138:358 139:184 140:493 141:244
142:414 143:459 144:523 145:70 146:504 147:297
148:771 149:304 150:191 151:177 152:469 153:172
154:12 155:402 156:221 157:382 158:183 159:551
160:338 161:261 162:347 163:190 164:588 165:388
166:572 167:469 168:860 169:126 170:860 171:130
172:4 173:1740 174:574 175:431 176:585 177:748
178:1371 180:1210 181:82 182:999 183:294 184:487
185:1 186:2284 187:1076 188:1275 189:1788 190:5502
192:5981 193:5301 194:3807 195:3221 196:1282 197:137
198:3656 199:4621 200:5849 201:1936 202:8577 203:8594
204:4334 205:2528 206:2764 207:2798 208:4068 209:3622
210:2749 211:1515 212:2025 213:1939 214:874 215:104
216:5090 217:1543 218:543 219:312 220:1231 221:556
222:323 223:335
End of report
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