Routing Table Report 04:00 +10GMT Mon 23 Jan, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 392956
Prefixes after maximum aggregation: 168986
Deaggregation factor: 2.33
Unique aggregates announced to Internet: 191023
Total ASes present in the Internet Routing Table: 39888
Prefixes per ASN: 9.85
Origin-only ASes present in the Internet Routing Table: 32635
Origin ASes announcing only one prefix: 15505
Transit ASes present in the Internet Routing Table: 5379
Transit-only ASes present in the Internet Routing Table: 139
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 33
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 2145
Unregistered ASNs in the Routing Table: 1091
Number of 32-bit ASNs allocated by the RIRs: 2208
Number of 32-bit ASNs visible in the Routing Table: 1874
Prefixes from 32-bit ASNs in the Routing Table: 4526
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 116
Number of addresses announced to Internet: 2511153168
Equivalent to 149 /8s, 173 /16s and 40 /24s
Percentage of available address space announced: 67.8
Percentage of allocated address space announced: 67.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.0
Total number of prefixes smaller than registry allocations: 166060
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 97577
Total APNIC prefixes after maximum aggregation: 31611
APNIC Deaggregation factor: 3.09
Prefixes being announced from the APNIC address blocks: 93872
Unique aggregates announced from the APNIC address blocks: 38973
APNIC Region origin ASes present in the Internet Routing Table: 4639
APNIC Prefixes per ASN: 20.24
APNIC Region origin ASes announcing only one prefix: 1239
APNIC Region transit ASes present in the Internet Routing Table: 726
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 133
Number of APNIC addresses announced to Internet: 635143264
Equivalent to 37 /8s, 219 /16s and 132 /24s
Percentage of available APNIC address space announced: 80.5
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: 147649
Total ARIN prefixes after maximum aggregation: 75151
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 119636
Unique aggregates announced from the ARIN address blocks: 49123
ARIN Region origin ASes present in the Internet Routing Table: 14860
ARIN Prefixes per ASN: 8.05
ARIN Region origin ASes announcing only one prefix: 5678
ARIN Region transit ASes present in the Internet Routing Table: 1584
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 25
Number of ARIN region 32-bit ASNs visible in the Routing Table: 14
Number of ARIN addresses announced to Internet: 805036736
Equivalent to 47 /8s, 251 /16s and 226 /24s
Percentage of available ARIN address space announced: 64.0
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: 97137
Total RIPE prefixes after maximum aggregation: 52048
RIPE Deaggregation factor: 1.87
Prefixes being announced from the RIPE address blocks: 89026
Unique aggregates announced from the RIPE address blocks: 55683
RIPE Region origin ASes present in the Internet Routing Table: 16263
RIPE Prefixes per ASN: 5.47
RIPE Region origin ASes announcing only one prefix: 7984
RIPE Region transit ASes present in the Internet Routing Table: 2586
Average RIPE Region AS path length visible: 4.7
Max RIPE Region AS path length visible: 33
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1301
Number of RIPE addresses announced to Internet: 497779912
Equivalent to 29 /8s, 171 /16s and 132 /24s
Percentage of available RIPE address space announced: 80.2
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: 37251
Total LACNIC prefixes after maximum aggregation: 8032
LACNIC Deaggregation factor: 4.64
Prefixes being announced from the LACNIC address blocks: 36937
Unique aggregates announced from the LACNIC address blocks: 19314
LACNIC Region origin ASes present in the Internet Routing Table: 1565
LACNIC Prefixes per ASN: 23.60
LACNIC Region origin ASes announcing only one prefix: 442
LACNIC Region transit ASes present in the Internet Routing Table: 287
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 24
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 422
Number of LACNIC addresses announced to Internet: 95527816
Equivalent to 5 /8s, 177 /16s and 163 /24s
Percentage of available LACNIC address space announced: 63.3
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: 8656
Total AfriNIC prefixes after maximum aggregation: 2072
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 6686
Unique aggregates announced from the AfriNIC address blocks: 2073
AfriNIC Region origin ASes present in the Internet Routing Table: 506
AfriNIC Prefixes per ASN: 13.21
AfriNIC Region origin ASes announcing only one prefix: 162
AfriNIC Region transit ASes present in the Internet Routing Table: 118
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: 4
Number of AfriNIC addresses announced to Internet: 30795264
Equivalent to 1 /8s, 213 /16s and 230 /24s
Percentage of available AfriNIC address space announced: 45.9
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 2473 11101 975 Korea Telecom (KIX)
17974 1714 503 36 PT TELEKOMUNIKASI INDONESIA
7545 1637 303 85 TPG Internet Pty Ltd
4755 1524 385 154 TATA Communications formerly
7552 1424 1064 7 Vietel Corporation
9829 1161 989 28 BSNL National Internet Backbo
9583 1119 81 490 Sify Limited
4808 1098 2050 311 CNCGROUP IP network: China169
24560 1011 384 167 Bharti Airtel Ltd., Telemedia
18101 946 130 155 Reliance Infocom Ltd Internet
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 3446 3807 203 bellsouth.net, inc.
7029 3223 1016 198 Windstream Communications Inc
18566 2093 382 177 Covad Communications
1785 1865 679 122 PaeTec Communications, Inc.
20115 1620 1553 615 Charter Communications
4323 1609 1063 384 Time Warner Telecom
22773 1487 2909 108 Cox Communications, Inc.
30036 1474 263 720 Mediacom Communications Corp
19262 1386 4683 400 Verizon Global Networks
7018 1298 7008 849 AT&T WorldNet Services
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 1735 480 15 Corbina telecom
2118 1241 99 14 EUnet/RELCOM Autonomous Syste
15557 1095 2161 64 LDCOM NETWORKS
6830 644 1928 413 UPC Distribution Services
34984 637 188 171 BILISIM TELEKOM
20940 579 190 460 Akamai Technologies European
12479 557 639 55 Uni2 Autonomous System
31148 530 35 9 FreeNet ISP
8551 529 360 81 Bezeq International
3320 517 8157 393 Deutsche Telekom AG
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 1723 321 167 TVCABLE BOGOTA
28573 1616 1068 77 NET Servicos de Comunicao S.A
8151 1456 2999 340 UniNet S.A. de C.V.
7303 1256 756 179 Telecom Argentina Stet-France
27947 644 73 96 Telconet S.A
22047 581 322 17 VTR PUNTO NET S.A.
7738 551 1050 31 Telecomunicacoes da Bahia S.A
3816 550 238 92 Empresa Nacional de Telecomun
6503 538 434 68 AVANTEL, S.A.
11172 532 85 106 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
8452 1053 958 13 TEDATA
24863 797 146 36 LINKdotNET AS number
6713 486 649 18 Itissalat Al-MAGHRIB
3741 280 939 229 The Internet Solution
15706 243 32 6 Sudatel Internet Exchange Aut
33776 234 13 14 Starcomms Nigeria Limited
29571 214 17 12 Ci Telecom Autonomous system
12258 196 28 61 Vodacom Internet Company
24835 189 80 8 RAYA Telecom - Egypt
16637 166 664 82 MTN Network Solutions
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 3446 3807 203 bellsouth.net, inc.
7029 3223 1016 198 Windstream Communications Inc
4766 2473 11101 975 Korea Telecom (KIX)
18566 2093 382 177 Covad Communications
1785 1865 679 122 PaeTec Communications, Inc.
8402 1735 480 15 Corbina telecom
10620 1723 321 167 TVCABLE BOGOTA
17974 1714 503 36 PT TELEKOMUNIKASI INDONESIA
7545 1637 303 85 TPG Internet Pty Ltd
20115 1620 1553 615 Charter Communications
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 3223 3025 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1865 1743 PaeTec Communications, Inc.
8402 1735 1720 Corbina telecom
17974 1714 1678 PT TELEKOMUNIKASI INDONESIA
10620 1723 1556 TVCABLE BOGOTA
7545 1637 1552 TPG Internet Pty Ltd
28573 1616 1539 NET Servicos de Comunicao S.A
4766 2473 1498 Korea Telecom (KIX)
7552 1424 1417 Vietel Corporation
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
32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
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
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
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>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 /10:27 /11:80 /12:232
/13:458 /14:817 /15:1462 /16:12139 /17:6158 /18:10247
/19:20297 /20:28104 /21:29063 /22:39233 /23:36695 /24:204283
/25:1175 /26:1422 /27:783 /28:164 /29:54 /30:14
/31:0 /32:18
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2844 3223 Windstream Communications Inc
6389 2117 3446 bellsouth.net, inc.
18566 2042 2093 Covad Communications
8402 1714 1735 Corbina telecom
10620 1618 1723 TVCABLE BOGOTA
30036 1432 1474 Mediacom Communications Corp
11492 1116 1153 Cable One
1785 1067 1865 PaeTec Communications, Inc.
15557 1046 1095 LDCOM NETWORKS
7011 1031 1148 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:502 2:463 4:15 5:1 6:3 8:377
12:1959 13:1 14:582 15:11 16:3 17:6
20:9 23:117 24:1716 27:1177 31:826 32:65
33:2 34:2 36:8 37:101 38:794 40:114
41:2920 42:87 43:1 44:3 46:1249 47:3
49:320 50:517 52:13 54:1 55:6 56:3
57:41 58:950 59:492 60:345 61:1180 62:915
63:1975 64:4118 65:2290 66:4406 67:2010 68:1155
69:3144 70:919 71:428 72:1801 74:2651 75:445
76:320 77:969 78:914 79:512 80:1191 81:863
82:557 83:533 84:586 85:1152 86:741 87:907
88:340 89:1543 90:257 91:4439 92:532 93:1556
94:1318 95:1136 96:425 97:298 98:790 99:38
100:18 101:132 103:658 106:10 107:135 108:124
109:1457 110:686 111:839 112:417 113:525 114:603
115:757 116:865 117:728 118:900 119:1257 120:354
121:681 122:1625 123:1057 124:1338 125:1355 128:534
129:192 130:210 131:590 132:162 133:21 134:228
135:58 136:213 137:153 138:288 139:145 140:489
141:260 142:377 143:398 144:504 145:68 146:485
147:224 148:570 149:281 150:165 151:193 152:446
153:170 154:7 155:397 156:210 157:367 158:154
159:509 160:326 161:233 162:340 163:188 164:530
165:393 166:560 167:456 168:851 169:147 170:836
171:105 172:4 173:1768 174:584 175:415 176:372
177:464 178:1204 180:1227 181:43 182:693 183:274
184:396 185:1 186:1508 187:832 188:969 189:1161
190:5373 192:5984 193:5468 194:4199 195:3389 196:1281
197:171 198:3607 199:4320 200:5637 201:1690 202:8417
203:8591 204:4344 205:2428 206:2747 207:2808 208:4014
209:3549 210:2745 211:1471 212:1927 213:1822 214:838
215:95 216:4966 217:1474 218:557 219:341 220:1250
221:558 222:324 223:270
End of report
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