* BGP Routing Table Analysis Reports *
Routing Table Report 04:00 +10GMT Fri 15 Jun, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 413914
Prefixes after maximum aggregation: 175094
Deaggregation factor: 2.36
Unique aggregates announced to Internet: 201778
Total ASes present in the Internet Routing Table: 41300
Prefixes per ASN: 10.02
Origin-only ASes present in the Internet Routing Table: 33288
Origin ASes announcing only one prefix: 15669
Transit ASes present in the Internet Routing Table: 5528
Transit-only ASes present in the Internet Routing Table: 139
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: 410
Unregistered ASNs in the Routing Table: 139
Number of 32-bit ASNs allocated by the RIRs: 2836
Number of 32-bit ASNs visible in the Routing Table: 2484
Prefixes from 32-bit ASNs in the Routing Table: 6315
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 329
Number of addresses announced to Internet: 2564253868
Equivalent to 152 /8s, 215 /16s and 104 /24s
Percentage of available address space announced: 69.2
Percentage of allocated address space announced: 69.3
Percentage of available address space allocated: 99.9
Percentage of address space in use by end-sites: 92.9
Total number of prefixes smaller than registry allocations: 143961
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 100758
Total APNIC prefixes after maximum aggregation: 32614
APNIC Deaggregation factor: 3.09
Prefixes being announced from the APNIC address blocks: 101167
Unique aggregates announced from the APNIC address blocks: 41809
APNIC Region origin ASes present in the Internet Routing Table: 4708
APNIC Prefixes per ASN: 21.49
APNIC Region origin ASes announcing only one prefix: 1250
APNIC Region transit ASes present in the Internet Routing Table: 743
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: 227
Number of APNIC addresses announced to Internet: 702968192
Equivalent to 41 /8s, 230 /16s and 113 /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, 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: 151791
Total ARIN prefixes after maximum aggregation: 77199
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 152767
Unique aggregates announced from the ARIN address blocks: 68048
ARIN Region origin ASes present in the Internet Routing Table: 15161
ARIN Prefixes per ASN: 10.08
ARIN Region origin ASes announcing only one prefix: 5750
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: 1079170944
Equivalent to 64 /8s, 82 /16s and 215 /24s
Percentage of available ARIN address space announced: 57.1
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, 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: 103465
Total RIPE prefixes after maximum aggregation: 54728
RIPE Deaggregation factor: 1.89
Prefixes being announced from the RIPE address blocks: 105353
Unique aggregates announced from the RIPE address blocks: 66519
RIPE Region origin ASes present in the Internet Routing Table: 16617
RIPE Prefixes per ASN: 6.34
RIPE Region origin ASes announcing only one prefix: 8063
RIPE Region transit ASes present in the Internet Routing Table: 2666
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: 1644
Number of RIPE addresses announced to Internet: 630608644
Equivalent to 37 /8s, 150 /16s and 83 /24s
Percentage of available RIPE address space announced: 91.7
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
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: 42097
Total LACNIC prefixes after maximum aggregation: 8322
LACNIC Deaggregation factor: 5.06
Prefixes being announced from the LACNIC address blocks: 44551
Unique aggregates announced from the LACNIC address blocks: 21835
LACNIC Region origin ASes present in the Internet Routing Table: 1606
LACNIC Prefixes per ASN: 27.74
LACNIC Region origin ASes announcing only one prefix: 435
LACNIC Region transit ASes present in the Internet Routing Table: 307
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: 591
Number of LACNIC addresses announced to Internet: 110560680
Equivalent to 6 /8s, 151 /16s and 5 /24s
Percentage of available LACNIC address space announced: 65.9
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: 9301
Total AfriNIC prefixes after maximum aggregation: 2167
AfriNIC Deaggregation factor: 4.29
Prefixes being announced from the AfriNIC address blocks: 9747
Unique aggregates announced from the AfriNIC address blocks: 3268
AfriNIC Region origin ASes present in the Internet Routing Table: 549
AfriNIC Prefixes per ASN: 17.75
AfriNIC Region origin ASes announcing only one prefix: 171
AfriNIC Region transit ASes present in the Internet Routing Table: 121
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: 40407552
Equivalent to 2 /8s, 104 /16s and 146 /24s
Percentage of available AfriNIC address space announced: 40.1
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 2665 11116 1155 Korea Telecom (KIX)
17974 1928 530 81 PT TELEKOMUNIKASI INDONESIA
7545 1684 301 86 TPG Internet Pty Ltd
4755 1592 385 155 TATA Communications formerly
9829 1300 1085 28 BSNL National Internet Backbo
9583 1175 87 502 Sify Limited
7552 1160 1062 11 Vietel Corporation
4808 1104 2049 314 CNCGROUP IP network: China169
24560 1031 385 163 Bharti Airtel Ltd., Telemedia
9498 965 291 63 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 3407 3791 192 bellsouth.net, inc.
7029 3291 986 159 Windstream Communications Inc
18566 2091 382 181 Covad Communications
1785 1919 681 131 PaeTec Communications, Inc.
22773 1648 2911 121 Cox Communications, Inc.
20115 1642 1570 613 Charter Communications
4323 1574 1043 385 Time Warner Telecom
30036 1428 265 755 Mediacom Communications Corp
7018 1227 10014 825 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 1792 544 16 Corbina telecom
2118 1226 97 14 EUnet/RELCOM Autonomous Syste
12479 745 713 90 Uni2 Autonomous System
34984 708 188 172 BILISIM TELEKOM
31148 685 37 9 FreeNet ISP
20940 676 222 528 Akamai Technologies European
6830 661 2219 427 UPC Distribution Services
8551 576 364 61 Bezeq International
3320 489 8442 402 Deutsche Telekom AG
3292 475 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 1967 342 205 TVCABLE BOGOTA
28573 1926 1186 51 NET Servicos de Comunicao S.A
6503 1526 418 65 AVANTEL, S.A.
8151 1488 3068 336 UniNet S.A. de C.V.
7303 1439 901 194 Telecom Argentina Stet-France
26615 902 760 31 Tim Brasil S.A.
27947 705 73 93 Telconet S.A
11172 646 91 74 Servicios Alestra S.A de C.V
3816 586 247 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 1255 958 13 TEDATA
24863 854 274 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
29975 167 571 19 Vodacom
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 3407 3791 192 bellsouth.net, inc.
7029 3291 986 159 Windstream Communications Inc
4766 2665 11116 1155 Korea Telecom (KIX)
18566 2091 382 181 Covad Communications
10620 1967 342 205 TVCABLE BOGOTA
17974 1928 530 81 PT TELEKOMUNIKASI INDONESIA
28573 1926 1186 51 NET Servicos de Comunicao S.A
1785 1919 681 131 PaeTec Communications, Inc.
8402 1792 544 16 Corbina telecom
7545 1684 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 3291 3132 Windstream Communications Inc
18566 2091 1910 Covad Communications
28573 1926 1875 NET Servicos de Comunicao S.A
17974 1928 1847 PT TELEKOMUNIKASI INDONESIA
1785 1919 1788 PaeTec Communications, Inc.
8402 1792 1776 Corbina telecom
10620 1967 1762 TVCABLE BOGOTA
7545 1684 1598 TPG Internet Pty Ltd
22773 1648 1527 Cox Communications, Inc.
4766 2665 1510 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
5.83.16.0/21 35362 Best ISP
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
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
/13:462 /14:834 /15:1506 /16:12310 /17:6325 /18:10704
/19:20802 /20:29579 /21:31173 /22:40802 /23:38619 /24:216620
/25:1234 /26:1441 /27:847 /28:170 /29:68 /30:18
/31:0 /32:22
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2672 3291 Windstream Communications Inc
18566 2040 2091 Covad Communications
6389 1877 3407 bellsouth.net, inc.
8402 1486 1792 Corbina telecom
30036 1368 1428 Mediacom Communications Corp
11492 1152 1189 Cable One
22773 1080 1648 Cox Communications, Inc.
6503 1061 1526 AVANTEL, S.A.
1785 1032 1919 PaeTec Communications, Inc.
8452 1024 1255 TEDATA
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:560 2:762 3:1 4:13 5:59 6:3
8:425 12:2014 13:1 14:624 15:12 16:3
17:5 20:24 23:183 24:1778 27:1310 31:984
32:56 33:2 34:2 36:9 37:718 38:810
40:127 41:3112 42:135 44:3 46:1420 47:2
49:396 50:562 52:13 54:12 55:9 56:1
57:34 58:965 59:495 60:259 61:1215 62:1008
63:2008 64:4237 65:2248 66:4452 67:2008 68:1159
69:3174 70:951 71:509 72:1825 74:2595 75:475
76:330 77:951 78:981 79:491 80:1224 81:944
82:658 83:541 84:506 85:1189 86:424 87:922
88:337 89:1722 90:293 91:4920 92:570 93:1409
94:1594 95:1232 96:368 97:315 98:903 99:38
100:17 101:247 103:1164 106:103 107:186 108:332
109:1372 110:778 111:923 112:418 113:617 114:636
115:848 116:949 117:723 118:922 119:1232 120:348
121:686 122:1676 123:1091 124:1393 125:1253 128:561
129:199 130:250 131:633 132:289 133:22 134:244
135:61 136:215 137:241 138:334 139:192 140:493
141:265 142:414 143:373 144:532 145:73 146:511
147:293 148:768 149:312 150:162 151:176 152:472
153:174 154:14 155:447 156:223 157:382 158:188
159:596 160:349 161:268 162:352 163:190 164:640
165:416 166:588 167:473 168:862 169:127 170:882
171:137 172:4 173:1778 174:602 175:427 176:541
177:816 178:1437 180:1263 181:97 182:1006 183:229
184:533 185:1 186:2330 187:1106 188:1349 189:1848
190:5621 192:6005 193:5525 194:4540 195:3390 196:1224
197:152 198:3665 199:4783 200:5894 201:1953 202:8649
203:8557 204:4348 205:2533 206:2775 207:2800 208:4018
209:3618 210:2771 211:1540 212:2033 213:1932 214:872
215:90 216:5106 217:1573 218:553 219:313 220:1238
221:567 222:317 223:362
End of report
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