Routing Table Report 04:00 +10GMT Mon 13 Dec, 2010
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 337814
Prefixes after maximum aggregation: 152754
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 166365
Total ASes present in the Internet Routing Table: 35446
Prefixes per ASN: 9.53
Origin-only ASes present in the Internet Routing Table: 30527
Origin ASes announcing only one prefix: 14916
Transit ASes present in the Internet Routing Table: 4919
Transit-only ASes present in the Internet Routing Table: 119
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 31
Max AS path prepend of ASN (36992) 29
Prefixes from unregistered ASNs in the Routing Table: 701
Unregistered ASNs in the Routing Table: 337
Number of 32-bit ASNs allocated by the RIRs: 948
Prefixes from 32-bit ASNs in the Routing Table: 4
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 189
Number of addresses announced to Internet: 2334306336
Equivalent to 139 /8s, 34 /16s and 176 /24s
Percentage of available address space announced: 63.0
Percentage of allocated address space announced: 65.0
Percentage of available address space allocated: 96.8
Percentage of address space in use by end-sites: 86.6
Total number of prefixes smaller than registry allocations: 138794
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 83392
Total APNIC prefixes after maximum aggregation: 28332
APNIC Deaggregation factor: 2.94
Prefixes being announced from the APNIC address blocks: 80334
Unique aggregates announced from the APNIC address blocks: 34854
APNIC Region origin ASes present in the Internet Routing Table: 4273
APNIC Prefixes per ASN: 18.80
APNIC Region origin ASes announcing only one prefix: 1209
APNIC Region transit ASes present in the Internet Routing Table: 690
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 20
Number of APNIC addresses announced to Internet: 571753760
Equivalent to 34 /8s, 20 /16s and 69 /24s
Percentage of available APNIC address space announced: 77.5
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
55296-56319, 131072-132095
APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 42/8, 43/8, 49/8,
58/8, 59/8, 60/8, 61/8, 101/8, 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: 136796
Total ARIN prefixes after maximum aggregation: 69891
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 107778
Unique aggregates announced from the ARIN address blocks: 43890
ARIN Region origin ASes present in the Internet Routing Table: 14059
ARIN Prefixes per ASN: 7.67
ARIN Region origin ASes announcing only one prefix: 5384
ARIN Region transit ASes present in the Internet Routing Table: 1491
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 741809792
Equivalent to 44 /8s, 55 /16s and 30 /24s
Percentage of available ARIN address space announced: 62.3
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, 47/8, 48/8, 50/8, 52/8, 54/8,
55/8, 56/8, 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,
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: 79054
Total RIPE prefixes after maximum aggregation: 45394
RIPE Deaggregation factor: 1.74
Prefixes being announced from the RIPE address blocks: 72549
Unique aggregates announced from the RIPE address blocks: 47109
RIPE Region origin ASes present in the Internet Routing Table: 15106
RIPE Prefixes per ASN: 4.80
RIPE Region origin ASes announcing only one prefix: 7751
RIPE Region transit ASes present in the Internet Routing Table: 2341
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 450759168
Equivalent to 26 /8s, 222 /16s and 10 /24s
Percentage of available RIPE address space announced: 74.6
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, 196608-197631
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, 193/8, 194/8, 195/8, 212/8, 213/8,
217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 31045
Total LACNIC prefixes after maximum aggregation: 7131
LACNIC Deaggregation factor: 4.35
Prefixes being announced from the LACNIC address blocks: 29783
Unique aggregates announced from the LACNIC address blocks: 15455
LACNIC Region origin ASes present in the Internet Routing Table: 1402
LACNIC Prefixes per ASN: 21.24
LACNIC Region origin ASes announcing only one prefix: 436
LACNIC Region transit ASes present in the Internet Routing Table: 253
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 78608640
Equivalent to 4 /8s, 175 /16s and 121 /24s
Percentage of available LACNIC address space announced: 58.6
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 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: 7290
Total AfriNIC prefixes after maximum aggregation: 1885
AfriNIC Deaggregation factor: 3.87
Prefixes being announced from the AfriNIC address blocks: 5634
Unique aggregates announced from the AfriNIC address blocks: 1759
AfriNIC Region origin ASes present in the Internet Routing Table: 425
AfriNIC Prefixes per ASN: 13.26
AfriNIC Region origin ASes announcing only one prefix: 136
AfriNIC Region transit ASes present in the Internet Routing Table: 91
Average AfriNIC Region AS path length visible: 5.3
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 21696512
Equivalent to 1 /8s, 75 /16s and 16 /24s
Percentage of available AfriNIC address space announced: 43.1
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1876 9453 520 Korea Telecom (KIX)
7545 1572 299 78 TPG Internet Pty Ltd
4755 1385 633 154 TATA Communications formerly
17974 1323 459 27 PT TELEKOMUNIKASI INDONESIA
17488 1083 158 113 Hathway IP Over Cable Interne
9583 1043 107 487 Sify Limited
24560 1038 311 173 Bharti Airtel Ltd., Telemedia
4808 991 1715 271 CNCGROUP IP network: China169
18101 910 116 139 Reliance Infocom Ltd Internet
9829 827 695 38 BSNL National Internet Backbo
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 3735 3871 268 bellsouth.net, inc.
4323 2640 1077 400 Time Warner Telecom
19262 1834 4869 282 Verizon Global Networks
1785 1794 697 132 PaeTec Communications, Inc.
20115 1513 1531 639 Charter Communications
6478 1428 289 69 AT&T Worldnet Services
7018 1361 5652 873 AT&T WorldNet Services
2386 1309 571 926 AT&T Data Communications Serv
22773 1257 2864 74 Cox Communications, Inc.
11492 1256 234 73 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
6830 502 1763 309 UPC Distribution Services
3292 443 2010 385 TDC Tele Danmark
8866 434 133 23 Bulgarian Telecommunication C
9121 430 1690 29 TTnet Autonomous System
34984 422 92 191 BILISIM TELEKOM
9198 414 202 13 Kazakhtelecom Data Network Ad
8551 402 353 46 Bezeq International
12479 398 577 6 Uni2 Autonomous System
702 397 1864 311 UUNET - Commercial IP service
3320 387 7608 340 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 1344 250 156 TVCABLE BOGOTA
8151 1342 2633 366 UniNet S.A. de C.V.
28573 1209 932 79 NET Servicos de Comunicao S.A
6503 1174 355 80 AVANTEL, S.A.
7303 829 441 107 Telecom Argentina Stet-France
14420 584 49 88 CORPORACION NACIONAL DE TELEC
22047 563 310 15 VTR PUNTO NET S.A.
3816 492 214 100 Empresa Nacional de Telecomun
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 452 32 30 Telefonica del Sur 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 951 445 10 TEDATA
36992 657 275 157 Etisalat MISR
24863 600 147 39 LINKdotNET AS number
3741 263 986 225 The Internet Solution
6713 203 199 12 Itissalat Al-MAGHRIB
29571 199 19 11 Ci Telecom Autonomous system
2018 196 277 64 Tertiary Education Network
24835 196 62 10 RAYA Telecom - Egypt
33776 184 12 14 Starcomms Nigeria Limited
36874 137 24 6 Cybersmart
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 3735 3871 268 bellsouth.net, inc.
4323 2640 1077 400 Time Warner Telecom
4766 1876 9453 520 Korea Telecom (KIX)
19262 1834 4869 282 Verizon Global Networks
1785 1794 697 132 PaeTec Communications, Inc.
7545 1572 299 78 TPG Internet Pty Ltd
20115 1513 1531 639 Charter Communications
6478 1428 289 69 AT&T Worldnet Services
4755 1385 633 154 TATA Communications formerly
7018 1361 5652 873 AT&T WorldNet Services
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 2640 2240 Time Warner Telecom
1785 1794 1662 PaeTec Communications, Inc.
19262 1834 1552 Verizon Global Networks
7545 1572 1494 TPG Internet Pty Ltd
6478 1428 1359 AT&T Worldnet Services
4766 1876 1356 Korea Telecom (KIX)
17974 1323 1296 PT TELEKOMUNIKASI INDONESIA
4755 1385 1231 TATA Communications formerly
10620 1344 1188 TVCABLE BOGOTA
22773 1257 1183 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
46164 UNALLOCATED 4.23.88.0/24 7018 AT&T WorldNet Servic
46164 UNALLOCATED 4.23.89.0/24 7018 AT&T WorldNet Servic
46164 UNALLOCATED 4.23.92.0/23 7018 AT&T WorldNet Servic
46164 UNALLOCATED 4.23.94.0/23 7018 AT&T WorldNet Servic
46164 UNALLOCATED 4.38.0.0/21 7018 AT&T WorldNet Servic
46164 UNALLOCATED 4.38.8.0/21 7018 AT&T WorldNet Servic
46164 UNALLOCATED 4.43.50.0/24 7018 AT&T WorldNet Servic
46164 UNALLOCATED 4.43.51.0/24 7018 AT&T WorldNet Servic
46164 UNALLOCATED 4.67.96.0/21 7018 AT&T WorldNet Servic
46164 UNALLOCATED 4.67.104.0/21 7018 AT&T WorldNet Servic
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
5.0.0.0/16 12654 RIPE NCC RIS Project
5.1.0.0/21 12654 RIPE NCC RIS Project
5.1.24.0/24 12654 RIPE NCC RIS Project
24.129.192.0/19 7922 Continental Cablevision
37.0.0.0/16 12654 RIPE NCC RIS Project
37.1.0.0/21 12654 RIPE NCC RIS Project
37.1.24.0/24 12654 RIPE NCC RIS Project
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 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 /8:20 /9:10 /10:25 /11:70 /12:210
/13:429 /14:750 /15:1341 /16:11355 /17:5516 /18:9194
/19:18644 /20:23891 /21:24216 /22:31747 /23:30623 /24:176983
/25:990 /26:1061 /27:565 /28:152 /29:12 /30:2
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2307 3735 bellsouth.net, inc.
4323 1429 2640 Time Warner Telecom
6478 1385 1428 AT&T Worldnet Services
10620 1236 1344 TVCABLE BOGOTA
11492 1213 1256 Cable One
18566 1072 1091 Covad Communications
7011 1069 1172 Citizens Utilities
1785 1067 1794 PaeTec Communications, Inc.
6503 959 1174 AVANTEL, S.A.
19262 955 1834 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:128 2:18 4:13 5:1 8:316 12:2030
13:6 14:89 15:17 16:3 17:8 20:9
24:1423 27:486 32:61 33:6 34:2 36:1
37:1 38:717 40:101 41:2495 42:1 44:3
46:349 47:4 49:39 50:18 52:12 55:6
56:2 57:29 58:856 59:500 60:417 61:1116
62:1025 63:1934 64:3713 65:2320 66:4067 67:1758
68:1001 69:2823 70:714 71:389 72:1947 74:2282
75:287 76:319 77:854 78:743 79:436 80:1058
81:800 82:511 83:445 84:628 85:1039 86:495
87:703 88:405 89:1585 90:136 91:3309 92:458
93:1020 94:1090 95:695 96:406 97:246 98:700
99:33 101:3 107:2 108:69 109:799 110:472
111:670 112:309 113:313 114:482 115:645 116:984
117:664 118:605 119:1006 120:197 121:699 122:1573
123:1024 124:1226 125:1228 128:232 129:153 130:170
131:565 132:234 133:20 134:208 135:50 136:213
137:147 138:290 139:110 140:479 141:196 142:352
143:514 144:488 145:54 146:424 147:181 148:640
149:326 150:150 151:229 152:296 153:172 154:3
155:367 156:166 157:338 158:126 159:369 160:314
161:197 162:272 163:161 164:432 165:334 166:468
167:419 168:737 169:150 170:722 171:67 172:2
173:1132 174:463 175:276 176:1 178:624 180:734
182:532 183:240 184:189 186:892 187:764 188:878
189:1009 190:4268 192:5783 193:4796 194:3475 195:2892
196:1198 197:1 198:3532 199:3669 200:5524 201:1583
202:8222 203:8394 204:4043 205:2336 206:2519 207:2966
208:3854 209:3476 210:2540 211:1314 212:1858 213:1698
214:736 215:62 216:4762 217:1618 218:519 219:399
220:1188 221:443 222:341 223:76
End of report
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