Routing Table Report 04:00 +10GMT Thu 10 Nov, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 381857
Prefixes after maximum aggregation: 166676
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 187562
Total ASes present in the Internet Routing Table: 39275
Prefixes per ASN: 9.72
Origin-only ASes present in the Internet Routing Table: 32389
Origin ASes announcing only one prefix: 15495
Transit ASes present in the Internet Routing Table: 5281
Transit-only ASes present in the Internet Routing Table: 131
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 33
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 1647
Unregistered ASNs in the Routing Table: 865
Number of 32-bit ASNs allocated by the RIRs: 1934
Number of 32-bit ASNs visible in the Routing Table: 1605
Prefixes from 32-bit ASNs in the Routing Table: 3699
Special use prefixes present in the Routing Table: 3
Prefixes being announced from unallocated address space: 87
Number of addresses announced to Internet: 2490767936
Equivalent to 148 /8s, 118 /16s and 26 /24s
Percentage of available address space announced: 67.2
Percentage of allocated address space announced: 67.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.6
Total number of prefixes smaller than registry allocations: 161310
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 95068
Total APNIC prefixes after maximum aggregation: 31117
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 91514
Unique aggregates announced from the APNIC address blocks: 38372
APNIC Region origin ASes present in the Internet Routing Table: 4603
APNIC Prefixes per ASN: 19.88
APNIC Region origin ASes announcing only one prefix: 1270
APNIC Region transit ASes present in the Internet Routing Table: 716
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 104
Number of APNIC addresses announced to Internet: 629956192
Equivalent to 37 /8s, 140 /16s and 94 /24s
Percentage of available APNIC address space announced: 79.9
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: 146234
Total ARIN prefixes after maximum aggregation: 74468
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 118148
Unique aggregates announced from the ARIN address blocks: 48493
ARIN Region origin ASes present in the Internet Routing Table: 14748
ARIN Prefixes per ASN: 8.01
ARIN Region origin ASes announcing only one prefix: 5642
ARIN Region transit ASes present in the Internet Routing Table: 1561
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: 12
Number of ARIN addresses announced to Internet: 804688128
Equivalent to 47 /8s, 246 /16s and 145 /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: 91981
Total RIPE prefixes after maximum aggregation: 51084
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 84451
Unique aggregates announced from the RIPE address blocks: 54534
RIPE Region origin ASes present in the Internet Routing Table: 16098
RIPE Prefixes per ASN: 5.25
RIPE Region origin ASes announcing only one prefix: 7976
RIPE Region transit ASes present in the Internet Routing Table: 2535
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: 1114
Number of RIPE addresses announced to Internet: 491781056
Equivalent to 29 /8s, 79 /16s and 251 /24s
Percentage of available RIPE address space announced: 79.2
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: 36133
Total LACNIC prefixes after maximum aggregation: 7907
LACNIC Deaggregation factor: 4.57
Prefixes being announced from the LACNIC address blocks: 35579
Unique aggregates announced from the LACNIC address blocks: 18577
LACNIC Region origin ASes present in the Internet Routing Table: 1547
LACNIC Prefixes per ASN: 23.00
LACNIC Region origin ASes announcing only one prefix: 447
LACNIC Region transit ASes present in the Internet Routing Table: 284
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 18
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 371
Number of LACNIC addresses announced to Internet: 92921216
Equivalent to 5 /8s, 137 /16s and 221 /24s
Percentage of available LACNIC address space announced: 61.5
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: 8559
Total AfriNIC prefixes after maximum aggregation: 2023
AfriNIC Deaggregation factor: 4.23
Prefixes being announced from the AfriNIC address blocks: 6633
Unique aggregates announced from the AfriNIC address blocks: 1988
AfriNIC Region origin ASes present in the Internet Routing Table: 498
AfriNIC Prefixes per ASN: 13.32
AfriNIC Region origin ASes announcing only one prefix: 160
AfriNIC Region transit ASes present in the Internet Routing Table: 109
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: 27683584
Equivalent to 1 /8s, 166 /16s and 107 /24s
Percentage of available AfriNIC address space announced: 41.3
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 2516 11129 974 Korea Telecom (KIX)
17974 1659 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1618 303 87 TPG Internet Pty Ltd
4755 1545 377 172 TATA Communications formerly
7552 1394 1064 7 Vietel Corporation
9829 1166 989 28 BSNL National Internet Backbo
9583 1097 81 497 Sify Limited
4808 1094 2103 313 CNCGROUP IP network: China169
24560 964 343 218 Bharti Airtel Ltd., Telemedia
18101 953 119 149 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 3547 3814 220 bellsouth.net, inc.
7029 2637 1016 198 Windstream Communications Inc
18566 2094 383 177 Covad Communications
1785 1845 680 122 PaeTec Communications, Inc.
4323 1621 1077 387 Time Warner Telecom
20115 1595 1546 623 Charter Communications
22773 1490 2909 103 Cox Communications, Inc.
30036 1410 255 670 Mediacom Communications Corp
19262 1395 4728 400 Verizon Global Networks
7018 1316 7029 863 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 1537 416 14 Corbina telecom
6830 648 1927 412 UPC Distribution Services
34984 596 110 184 BILISIM TELEKOM
20940 550 182 432 Akamai Technologies European
12479 548 629 52 Uni2 Autonomous System
3320 506 8168 390 Deutsche Telekom AG
3292 481 2074 406 TDC Tele Danmark
8866 462 133 26 Bulgarian Telecommunication C
31148 407 22 115 FreeNet ISP
8551 402 354 43 Bezeq International
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 1699 314 156 TVCABLE BOGOTA
28573 1489 1043 79 NET Servicos de Comunicao S.A
8151 1437 2937 346 UniNet S.A. de C.V.
7303 1236 751 171 Telecom Argentina Stet-France
27947 591 72 84 Telconet S.A
22047 580 322 17 VTR PUNTO NET S.A.
6503 566 434 68 AVANTEL, S.A.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
3816 537 233 95 Empresa Nacional de Telecomun
11172 526 86 96 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
24863 794 146 36 LINKdotNET AS number
8452 658 446 12 TEDATA
15475 443 74 8 Nile Online
36992 285 415 21 Etisalat MISR
3741 281 939 230 The Internet Solution
15706 240 32 6 Sudatel Internet Exchange Aut
33776 239 13 8 Starcomms Nigeria Limited
6713 235 519 14 Itissalat Al-MAGHRIB
29571 218 17 13 Ci Telecom Autonomous system
12258 196 28 57 Vodacom Internet Company
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 3547 3814 220 bellsouth.net, inc.
7029 2637 1016 198 Windstream Communications Inc
4766 2516 11129 974 Korea Telecom (KIX)
18566 2094 383 177 Covad Communications
1785 1845 680 122 PaeTec Communications, Inc.
10620 1699 314 156 TVCABLE BOGOTA
17974 1659 511 36 PT TELEKOMUNIKASI INDONESIA
4323 1621 1077 387 Time Warner Telecom
7545 1618 303 87 TPG Internet Pty Ltd
20115 1595 1546 623 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 2637 2439 Windstream Communications Inc
18566 2094 1917 Covad Communications
1785 1845 1723 PaeTec Communications, Inc.
17974 1659 1623 PT TELEKOMUNIKASI INDONESIA
10620 1699 1543 TVCABLE BOGOTA
4766 2516 1542 Korea Telecom (KIX)
7545 1618 1531 TPG Internet Pty Ltd
8402 1537 1523 Corbina telecom
28573 1489 1410 NET Servicos de Comunicao S.A
22773 1490 1387 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
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
128.0.0.0/16 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
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
41.222.79.0/24 37345 MEDALLION Communications
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
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 /11:81 /12:236
/13:465 /14:810 /15:1424 /16:12027 /17:6067 /18:10099
/19:19974 /20:27631 /21:27783 /22:37462 /23:35345 /24:198947
/25:1156 /26:1360 /27:755 /28:168 /29:4 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2290 2637 Windstream Communications Inc
6389 2188 3547 bellsouth.net, inc.
18566 2043 2094 Covad Communications
10620 1594 1699 TVCABLE BOGOTA
8402 1513 1537 Corbina telecom
30036 1370 1410 Mediacom Communications Corp
11492 1117 1154 Cable One
1785 1057 1845 PaeTec Communications, Inc.
7011 1051 1168 Citizens Utilities
22773 952 1490 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:408 2:486 4:15 5:1 6:3 8:356
12:1960 13:1 14:543 15:11 16:3 17:7
20:9 23:63 24:1682 27:1028 31:669 32:65
33:2 34:2 36:4 38:757 40:110 41:2674
42:59 44:3 46:1029 47:3 49:298 50:449
52:13 55:8 56:2 57:47 58:913 59:496
60:362 61:1129 62:1095 63:1965 64:4061 65:2307
66:4321 67:2021 68:1172 69:3142 70:906 71:384
72:1809 74:2631 75:426 76:318 77:878 78:883
79:479 80:1133 81:841 82:515 83:525 84:622
85:1151 86:400 87:933 88:356 89:1592 90:237
91:4258 92:536 93:1555 94:1300 95:1105 96:427
97:286 98:938 99:37 101:229 103:454 106:8
107:88 108:73 109:1177 110:670 111:806 112:361
113:482 114:622 115:717 116:878 117:723 118:883
119:1273 120:347 121:693 122:1578 123:1008 124:1353
125:1354 128:246 129:183 130:164 131:625 132:151
133:21 134:221 135:54 136:212 137:142 138:287
139:120 140:493 141:317 142:388 143:417 144:489
145:64 146:468 147:220 148:640 149:272 150:163
151:194 152:446 153:175 154:7 155:387 156:208
157:361 158:155 159:487 160:332 161:215 162:371
163:174 164:510 165:369 166:541 167:443 168:807
169:145 170:880 171:87 172:4 173:1736 174:700
175:421 176:300 177:376 178:1089 180:1144 181:37
182:654 183:236 184:389 185:1 186:1400 187:776
188:966 189:1156 190:5200 192:5929 193:5049 194:3551
195:3110 196:1263 197:168 198:3628 199:4208 200:5512
201:1695 202:8543 203:8524 204:4316 205:2374 206:2671
207:2820 208:4028 209:3590 210:2724 211:1461 212:2075
213:1797 214:789 215:96 216:4924 217:1604 218:564
219:342 220:1254 221:517 222:323 223:270
End of report
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