Routing Table Report 04:00 +10GMT Wed 15 Dec, 2010
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 338121
Prefixes after maximum aggregation: 152826
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 166589
Total ASes present in the Internet Routing Table: 35474
Prefixes per ASN: 9.53
Origin-only ASes present in the Internet Routing Table: 30544
Origin ASes announcing only one prefix: 14924
Transit ASes present in the Internet Routing Table: 4930
Transit-only ASes present in the Internet Routing Table: 120
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: 325
Unregistered ASNs in the Routing Table: 128
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: 191
Number of addresses announced to Internet: 2338889120
Equivalent to 139 /8s, 104 /16s and 157 /24s
Percentage of available address space announced: 63.1
Percentage of allocated address space announced: 65.2
Percentage of available address space allocated: 96.8
Percentage of address space in use by end-sites: 86.7
Total number of prefixes smaller than registry allocations: 139105
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 83325
Total APNIC prefixes after maximum aggregation: 28379
APNIC Deaggregation factor: 2.94
Prefixes being announced from the APNIC address blocks: 80284
Unique aggregates announced from the APNIC address blocks: 34979
APNIC Region origin ASes present in the Internet Routing Table: 4272
APNIC Prefixes per ASN: 18.79
APNIC Region origin ASes announcing only one prefix: 1205
APNIC Region transit ASes present in the Internet Routing Table: 690
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 20
Number of APNIC addresses announced to Internet: 574489120
Equivalent to 34 /8s, 62 /16s and 2 /24s
Percentage of available APNIC address space announced: 77.8
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: 136856
Total ARIN prefixes after maximum aggregation: 69902
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 107806
Unique aggregates announced from the ARIN address blocks: 43954
ARIN Region origin ASes present in the Internet Routing Table: 14069
ARIN Prefixes per ASN: 7.66
ARIN Region origin ASes announcing only one prefix: 5389
ARIN Region transit ASes present in the Internet Routing Table: 1495
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 743553152
Equivalent to 44 /8s, 81 /16s and 184 /24s
Percentage of available ARIN address space announced: 62.4
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: 79240
Total RIPE prefixes after maximum aggregation: 45420
RIPE Deaggregation factor: 1.74
Prefixes being announced from the RIPE address blocks: 72764
Unique aggregates announced from the RIPE address blocks: 47221
RIPE Region origin ASes present in the Internet Routing Table: 15125
RIPE Prefixes per ASN: 4.81
RIPE Region origin ASes announcing only one prefix: 7754
RIPE Region transit ASes present in the Internet Routing Table: 2346
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 450875776
Equivalent to 26 /8s, 223 /16s and 209 /24s
Percentage of available RIPE address space announced: 74.7
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, 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: 30876
Total LACNIC prefixes after maximum aggregation: 7097
LACNIC Deaggregation factor: 4.35
Prefixes being announced from the LACNIC address blocks: 29717
Unique aggregates announced from the LACNIC address blocks: 15375
LACNIC Region origin ASes present in the Internet Routing Table: 1403
LACNIC Prefixes per ASN: 21.18
LACNIC Region origin ASes announcing only one prefix: 439
LACNIC Region transit ASes present in the Internet Routing Table: 251
Average LACNIC Region AS path length visible: 4.3
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 78597632
Equivalent to 4 /8s, 175 /16s and 78 /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: 7587
Total AfriNIC prefixes after maximum aggregation: 1910
AfriNIC Deaggregation factor: 3.97
Prefixes being announced from the AfriNIC address blocks: 5883
Unique aggregates announced from the AfriNIC address blocks: 1763
AfriNIC Region origin ASes present in the Internet Routing Table: 423
AfriNIC Prefixes per ASN: 13.91
AfriNIC Region origin ASes announcing only one prefix: 137
AfriNIC Region transit ASes present in the Internet Routing Table: 92
Average AfriNIC Region AS path length visible: 5.2
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 21612544
Equivalent to 1 /8s, 73 /16s and 200 /24s
Percentage of available AfriNIC address space announced: 42.9
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 1557 299 77 TPG Internet Pty Ltd
4755 1387 637 155 TATA Communications formerly
17974 1340 459 27 PT TELEKOMUNIKASI INDONESIA
24560 1040 312 174 Bharti Airtel Ltd., Telemedia
9583 1039 76 487 Sify Limited
4808 992 1715 271 CNCGROUP IP network: China169
17488 955 157 111 Hathway IP Over Cable Interne
18101 907 116 137 Reliance Infocom Ltd Internet
9829 824 696 31 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 3681 3871 268 bellsouth.net, inc.
4323 2640 1077 398 Time Warner Telecom
19262 1834 4869 282 Verizon Global Networks
1785 1786 697 132 PaeTec Communications, Inc.
20115 1514 1531 640 Charter Communications
6478 1431 290 55 AT&T Worldnet Services
7018 1359 5652 871 AT&T WorldNet Services
2386 1309 571 926 AT&T Data Communications Serv
22773 1260 2864 75 Cox Communications, Inc.
11492 1246 233 75 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 503 1763 310 UPC Distribution Services
3292 444 2010 386 TDC Tele Danmark
9121 435 1690 29 TTnet Autonomous System
8866 434 133 23 Bulgarian Telecommunication C
34984 422 92 191 BILISIM TELEKOM
9198 416 202 13 Kazakhtelecom Data Network Ad
8551 402 353 46 Bezeq International
702 397 1864 311 UUNET - Commercial IP service
12479 397 577 6 Uni2 Autonomous System
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
8151 1348 2617 367 UniNet S.A. de C.V.
10620 1341 250 155 TVCABLE BOGOTA
28573 1224 933 79 NET Servicos de Comunicao S.A
6503 1175 355 80 AVANTEL, S.A.
7303 805 440 94 Telecom Argentina Stet-France
14420 584 49 88 CORPORACION NACIONAL DE TELEC
22047 563 310 15 VTR PUNTO NET S.A.
3816 493 216 101 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 1084 445 10 TEDATA
24863 746 147 39 LINKdotNET AS number
36992 656 275 156 Etisalat MISR
3741 263 986 225 The Internet Solution
24835 209 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
29571 199 19 11 Ci Telecom Autonomous system
2018 196 277 64 Tertiary Education Network
33776 184 12 14 Starcomms Nigeria Limited
16637 161 440 88 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 3681 3871 268 bellsouth.net, inc.
4323 2640 1077 398 Time Warner Telecom
4766 1876 9453 520 Korea Telecom (KIX)
19262 1834 4869 282 Verizon Global Networks
1785 1786 697 132 PaeTec Communications, Inc.
7545 1557 299 77 TPG Internet Pty Ltd
20115 1514 1531 640 Charter Communications
6478 1431 290 55 AT&T Worldnet Services
4755 1387 637 155 TATA Communications formerly
7018 1359 5652 871 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 2242 Time Warner Telecom
1785 1786 1654 PaeTec Communications, Inc.
19262 1834 1552 Verizon Global Networks
7545 1557 1480 TPG Internet Pty Ltd
6478 1431 1376 AT&T Worldnet Services
4766 1876 1356 Korea Telecom (KIX)
17974 1340 1313 PT TELEKOMUNIKASI INDONESIA
4755 1387 1232 TATA Communications formerly
10620 1341 1186 TVCABLE BOGOTA
22773 1260 1185 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
16927 UNALLOCATED 12.0.252.0/23 7018 AT&T WorldNet Servic
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.155.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic
25639 UNALLOCATED 12.41.169.0/24 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<<
46.39.96.0/19 50821 High Performance Data Center
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 /12:212
/13:430 /14:752 /15:1340 /16:11398 /17:5519 /18:9185
/19:18624 /20:23881 /21:24233 /22:31799 /23:30775 /24:177108
/25:958 /26:1046 /27:568 /28:146 /29:12 /30:2
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2270 3681 bellsouth.net, inc.
4323 1429 2640 Time Warner Telecom
6478 1388 1431 AT&T Worldnet Services
10620 1233 1341 TVCABLE BOGOTA
11492 1203 1246 Cable One
18566 1072 1091 Covad Communications
7011 1069 1172 Citizens Utilities
1785 1059 1786 PaeTec Communications, Inc.
8452 976 1084 TEDATA
6503 960 1175 AVANTEL, S.A.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:132 2:17 4:13 5:1 8:316 12:2033
13:6 14:89 15:17 16:3 17:8 20:9
24:1424 27:490 32:61 33:6 34:2 36:1
37:1 38:718 40:101 41:2595 42:1 44:3
46:395 47:4 49:41 50:18 52:12 55:5
56:2 57:29 58:856 59:500 60:396 61:1103
62:1023 63:1935 64:3715 65:2316 66:4068 67:1760
68:1001 69:2815 70:712 71:389 72:1947 74:2282
75:288 76:319 77:847 78:747 79:435 80:1055
81:797 82:512 83:443 84:636 85:1043 86:496
87:703 88:405 89:1592 90:146 91:3329 92:460
93:1022 94:1126 95:696 96:407 97:246 98:700
99:33 101:3 107:2 108:77 109:799 110:472
111:674 112:310 113:319 114:486 115:645 116:891
117:652 118:607 119:1007 120:198 121:715 122:1572
123:1024 124:1231 125:1213 128:232 129:153 130:170
131:565 132:234 133:20 134:206 135:50 136:211
137:148 138:290 139:109 140:482 141:196 142:351
143:517 144:486 145:54 146:424 147:181 148:640
149:328 150:150 151:230 152:296 153:172 154:3
155:369 156:166 157:310 158:126 159:370 160:315
161:197 162:276 163:165 164:434 165:334 166:469
167:419 168:735 169:151 170:717 171:67 172:2
173:1134 174:471 175:261 176:1 178:642 180:729
182:535 183:241 184:189 186:825 187:767 188:876
189:1011 190:4270 192:5772 193:4796 194:3471 195:2891
196:1186 197:1 198:3535 199:3672 200:5497 201:1580
202:8259 203:8395 204:4047 205:2328 206:2521 207:2963
208:3857 209:3480 210:2552 211:1319 212:1876 213:1708
214:740 215:62 216:4791 217:1622 218:522 219:397
220:1180 221:442 222:342 223:81
End of report
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