Routing Table Report 04:00 +10GMT Tue 08 Nov, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 380922
Prefixes after maximum aggregation: 166603
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 187284
Total ASes present in the Internet Routing Table: 39244
Prefixes per ASN: 9.71
Origin-only ASes present in the Internet Routing Table: 32362
Origin ASes announcing only one prefix: 15478
Transit ASes present in the Internet Routing Table: 5280
Transit-only ASes present in the Internet Routing Table: 132
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: 1629
Unregistered ASNs in the Routing Table: 858
Number of 32-bit ASNs allocated by the RIRs: 1933
Number of 32-bit ASNs visible in the Routing Table: 1602
Prefixes from 32-bit ASNs in the Routing Table: 3689
Special use prefixes present in the Routing Table: 3
Prefixes being announced from unallocated address space: 86
Number of addresses announced to Internet: 2490264384
Equivalent to 148 /8s, 110 /16s and 107 /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: 160687
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 94873
Total APNIC prefixes after maximum aggregation: 31089
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 91334
Unique aggregates announced from the APNIC address blocks: 38303
APNIC Region origin ASes present in the Internet Routing Table: 4604
APNIC Prefixes per ASN: 19.84
APNIC Region origin ASes announcing only one prefix: 1272
APNIC Region transit ASes present in the Internet Routing Table: 713
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: 103
Number of APNIC addresses announced to Internet: 629797472
Equivalent to 37 /8s, 137 /16s and 242 /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: 145861
Total ARIN prefixes after maximum aggregation: 74463
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 117803
Unique aggregates announced from the ARIN address blocks: 48511
ARIN Region origin ASes present in the Internet Routing Table: 14736
ARIN Prefixes per ASN: 7.99
ARIN Region origin ASes announcing only one prefix: 5638
ARIN Region transit ASes present in the Internet Routing Table: 1560
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: 804688896
Equivalent to 47 /8s, 246 /16s and 148 /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: 91760
Total RIPE prefixes after maximum aggregation: 51057
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 84243
Unique aggregates announced from the RIPE address blocks: 54409
RIPE Region origin ASes present in the Internet Routing Table: 16091
RIPE Prefixes per ASN: 5.24
RIPE Region origin ASes announcing only one prefix: 7967
RIPE Region transit ASes present in the Internet Routing Table: 2538
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: 1110
Number of RIPE addresses announced to Internet: 491739840
Equivalent to 29 /8s, 79 /16s and 90 /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: 35963
Total LACNIC prefixes after maximum aggregation: 7891
LACNIC Deaggregation factor: 4.56
Prefixes being announced from the LACNIC address blocks: 35387
Unique aggregates announced from the LACNIC address blocks: 18570
LACNIC Region origin ASes present in the Internet Routing Table: 1540
LACNIC Prefixes per ASN: 22.98
LACNIC Region origin ASes announcing only one prefix: 444
LACNIC Region transit ASes present in the Internet Routing Table: 285
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: 373
Number of LACNIC addresses announced to Internet: 92919680
Equivalent to 5 /8s, 137 /16s and 215 /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: 8592
Total AfriNIC prefixes after maximum aggregation: 2027
AfriNIC Deaggregation factor: 4.24
Prefixes being announced from the AfriNIC address blocks: 6663
Unique aggregates announced from the AfriNIC address blocks: 1999
AfriNIC Region origin ASes present in the Internet Routing Table: 495
AfriNIC Prefixes per ASN: 13.46
AfriNIC Region origin ASes announcing only one prefix: 157
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: 27609088
Equivalent to 1 /8s, 165 /16s and 72 /24s
Percentage of available AfriNIC address space announced: 41.1
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 1635 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1615 303 86 TPG Internet Pty Ltd
4755 1549 637 175 TATA Communications formerly
7552 1394 1064 7 Vietel Corporation
9829 1166 989 28 BSNL National Internet Backbo
9583 1093 80 501 Sify Limited
4808 1090 2103 312 CNCGROUP IP network: China169
24560 964 343 218 Bharti Airtel Ltd., Telemedia
18101 952 135 149 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 3548 3815 221 bellsouth.net, inc.
7029 2328 1016 198 Windstream Communications Inc
18566 2094 383 177 Covad Communications
1785 1844 680 122 PaeTec Communications, Inc.
4323 1621 1077 387 Time Warner Telecom
20115 1596 1547 621 Charter Communications
22773 1489 2909 103 Cox Communications, Inc.
30036 1406 254 669 Mediacom Communications Corp
19262 1394 4728 400 Verizon Global Networks
7018 1315 7029 861 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 1596 416 14 Corbina telecom
6830 648 1927 412 UPC Distribution Services
34984 596 110 184 BILISIM TELEKOM
12479 547 628 51 Uni2 Autonomous System
20940 544 180 430 Akamai Technologies European
3320 506 8168 390 Deutsche Telekom AG
3292 481 2074 406 TDC Tele Danmark
8866 462 133 26 Bulgarian Telecommunication C
31148 406 22 114 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 1482 1043 79 NET Servicos de Comunicao S.A
8151 1432 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 97 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 801 146 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 3548 3815 221 bellsouth.net, inc.
4766 2516 11129 974 Korea Telecom (KIX)
7029 2328 1016 198 Windstream Communications Inc
18566 2094 383 177 Covad Communications
1785 1844 680 122 PaeTec Communications, Inc.
10620 1699 314 156 TVCABLE BOGOTA
17974 1635 511 36 PT TELEKOMUNIKASI INDONESIA
4323 1621 1077 387 Time Warner Telecom
7545 1615 303 86 TPG Internet Pty Ltd
8402 1596 416 14 Corbina telecom
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 2328 2130 Windstream Communications Inc
18566 2094 1917 Covad Communications
1785 1844 1722 PaeTec Communications, Inc.
17974 1635 1599 PT TELEKOMUNIKASI INDONESIA
8402 1596 1582 Corbina telecom
10620 1699 1543 TVCABLE BOGOTA
4766 2516 1542 Korea Telecom (KIX)
7545 1615 1529 TPG Internet Pty Ltd
28573 1482 1403 NET Servicos de Comunicao S.A
7552 1394 1387 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
128.0.0.0/16 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 /15:1420 /16:12027 /17:6067 /18:10099
/19:19953 /20:27564 /21:27702 /22:37220 /23:35240 /24:198532
/25:1153 /26:1359 /27:761 /28:166 /29:4 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2188 3548 bellsouth.net, inc.
18566 2043 2094 Covad Communications
7029 1996 2328 Windstream Communications Inc
10620 1594 1699 TVCABLE BOGOTA
8402 1571 1596 Corbina telecom
30036 1366 1406 Mediacom Communications Corp
11492 1117 1154 Cable One
1785 1057 1844 PaeTec Communications, Inc.
7011 1051 1169 Citizens Utilities
22773 951 1489 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:409 2:491 4:15 5:1 6:3 8:357
12:1954 13:1 14:541 15:11 16:3 17:7
20:9 23:58 24:1682 27:1027 31:665 32:65
33:2 34:2 36:4 38:756 40:110 41:2710
42:56 44:3 46:1030 47:3 49:298 50:447
52:13 55:6 56:2 57:47 58:911 59:496
60:362 61:1129 62:1083 63:1963 64:4045 65:2299
66:4270 67:2000 68:1164 69:3183 70:881 71:385
72:1803 74:2603 75:388 76:316 77:880 78:880
79:470 80:1127 81:830 82:518 83:526 84:621
85:1151 86:401 87:929 88:355 89:1596 90:237
91:4252 92:536 93:1549 94:1301 95:1126 96:427
97:286 98:938 99:37 101:227 103:443 106:8
107:84 108:72 109:1165 110:662 111:798 112:358
113:477 114:621 115:716 116:880 117:723 118:879
119:1268 120:345 121:693 122:1578 123:1012 124:1351
125:1355 128:246 129:188 130:164 131:624 132:148
133:21 134:221 135:54 136:206 137:142 138:286
139:122 140:488 141:317 142:388 143:409 144:490
145:64 146:462 147:221 148:641 149:272 150:164
151:193 152:447 153:178 154:7 155:382 156:208
157:361 158:155 159:487 160:331 161:215 162:371
163:174 164:511 165:369 166:540 167:441 168:819
169:145 170:880 171:87 172:4 173:1711 174:676
175:421 176:319 177:372 178:1085 180:1143 181:38
182:652 183:226 184:385 185:1 186:1332 187:774
188:1019 189:1146 190:5167 192:5924 193:5046 194:3552
195:3112 196:1268 197:170 198:3624 199:4203 200:5510
201:1700 202:8543 203:8479 204:4314 205:2371 206:2670
207:2820 208:4038 209:3580 210:2723 211:1461 212:2082
213:1779 214:814 215:95 216:4918 217:1601 218:565
219:342 220:1253 221:517 222:322 223:269
End of report
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