Routing Table Report 08:00 +10GMT Tue 18 Jan, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 337216
Prefixes after maximum aggregation: 153771
Deaggregation factor: 2.19
Unique aggregates announced to Internet: 168625
Total ASes present in the Internet Routing Table: 35503
Prefixes per ASN: 9.50
Origin-only ASes present in the Internet Routing Table: 30719
Origin ASes announcing only one prefix: 14945
Transit ASes present in the Internet Routing Table: 4784
Transit-only ASes present in the Internet Routing Table: 106
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 31
Max AS path prepend of ASN (36992) 29
Prefixes from unregistered ASNs in the Routing Table: 323
Unregistered ASNs in the Routing Table: 125
Number of 32-bit ASNs allocated by the RIRs: 1010
Prefixes from 32-bit ASNs in the Routing Table: 1559
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 213
Number of addresses announced to Internet: 2570521856
Equivalent to 153 /8s, 55 /16s and 13 /24s
Percentage of available address space announced: 69.4
Percentage of allocated address space announced: 71.6
Percentage of available address space allocated: 96.8
Percentage of address space in use by end-sites: 87.7
Total number of prefixes smaller than registry allocations: 137285
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 81243
Total APNIC prefixes after maximum aggregation: 27781
APNIC Deaggregation factor: 2.92
Prefixes being announced from the APNIC address blocks: 78875
Unique aggregates announced from the APNIC address blocks: 35350
APNIC Region origin ASes present in the Internet Routing Table: 4251
APNIC Prefixes per ASN: 18.55
APNIC Region origin ASes announcing only one prefix: 1224
APNIC Region transit ASes present in the Internet Routing Table: 652
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 579927808
Equivalent to 34 /8s, 144 /16s and 255 /24s
Percentage of available APNIC address space announced: 78.6
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: 134872
Total ARIN prefixes after maximum aggregation: 69112
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 107899
Unique aggregates announced from the ARIN address blocks: 44302
ARIN Region origin ASes present in the Internet Routing Table: 14046
ARIN Prefixes per ASN: 7.68
ARIN Region origin ASes announcing only one prefix: 5388
ARIN Region transit ASes present in the Internet Routing Table: 1393
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 778423040
Equivalent to 46 /8s, 101 /16s and 203 /24s
Percentage of available ARIN address space announced: 65.3
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: 80680
Total RIPE prefixes after maximum aggregation: 45923
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 74122
Unique aggregates announced from the RIPE address blocks: 47982
RIPE Region origin ASes present in the Internet Routing Table: 15197
RIPE Prefixes per ASN: 4.88
RIPE Region origin ASes announcing only one prefix: 7759
RIPE Region transit ASes present in the Internet Routing Table: 2350
Average RIPE Region AS path length visible: 3.4
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 455503104
Equivalent to 27 /8s, 38 /16s and 109 /24s
Percentage of available RIPE address space announced: 75.4
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, 193/8, 194/8, 195/8, 212/8, 213/8,
217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 30770
Total LACNIC prefixes after maximum aggregation: 7139
LACNIC Deaggregation factor: 4.31
Prefixes being announced from the LACNIC address blocks: 29691
Unique aggregates announced from the LACNIC address blocks: 15662
LACNIC Region origin ASes present in the Internet Routing Table: 1408
LACNIC Prefixes per ASN: 21.09
LACNIC Region origin ASes announcing only one prefix: 437
LACNIC Region transit ASes present in the Internet Routing Table: 237
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 79052288
Equivalent to 4 /8s, 182 /16s and 62 /24s
Percentage of available LACNIC address space announced: 58.9
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: 7415
Total AfriNIC prefixes after maximum aggregation: 1974
AfriNIC Deaggregation factor: 3.76
Prefixes being announced from the AfriNIC address blocks: 5735
Unique aggregates announced from the AfriNIC address blocks: 1872
AfriNIC Region origin ASes present in the Internet Routing Table: 434
AfriNIC Prefixes per ASN: 13.21
AfriNIC Region origin ASes announcing only one prefix: 137
AfriNIC Region transit ASes present in the Internet Routing Table: 93
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 21749248
Equivalent to 1 /8s, 75 /16s and 222 /24s
Percentage of available AfriNIC address space announced: 43.2
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 1755 9484 512 Korea Telecom (KIX)
7545 1547 298 75 TPG Internet Pty Ltd
17974 1411 459 28 PT TELEKOMUNIKASI INDONESIA
4755 1395 636 159 TATA Communications formerly
24560 1093 317 181 Bharti Airtel Ltd., Telemedia
9583 975 72 498 Sify Limited
17488 949 162 103 Hathway IP Over Cable Interne
4808 921 2012 264 CNCGROUP IP network: China169
18101 918 117 140 Reliance Infocom Ltd Internet
9829 861 728 47 BSNL National Internet Backbo
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3714 3855 267 bellsouth.net, inc.
4323 2646 1093 404 Time Warner Telecom
19262 1838 4941 286 Verizon Global Networks
1785 1789 697 132 PaeTec Communications, Inc.
20115 1508 1530 641 Charter Communications
6478 1451 288 74 AT&T Worldnet Services
7018 1388 5685 900 AT&T WorldNet Services
2386 1300 554 935 AT&T Data Communications Serv
22773 1269 2864 74 Cox Communications, Inc.
11492 1258 233 81 Cable One
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6830 499 1763 305 UPC Distribution Services
9116 487 328 31 Goldenlines main autonomous s
34984 457 97 137 BILISIM TELEKOM
3292 441 2010 385 TDC Tele Danmark
8866 439 133 23 Bulgarian Telecommunication C
9198 432 266 14 Kazakhtelecom Data Network Ad
8551 404 355 38 Bezeq International
702 403 1851 316 UUNET - Commercial IP service
12479 403 577 6 Uni2 Autonomous System
3320 399 7616 348 Deutsche Telekom AG
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1349 251 167 TVCABLE BOGOTA
28573 1207 951 79 NET Servicos de Comunicao S.A
8151 1194 2589 357 UniNet S.A. de C.V.
6503 1136 355 80 AVANTEL, S.A.
7303 862 460 102 Telecom Argentina Stet-France
14420 603 50 88 ANDINATEL S.A.
22047 566 310 15 VTR PUNTO NET S.A.
3816 499 217 98 Empresa Nacional de Telecomun
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 455 33 33 Telefonica del Sur S.A.
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 791 445 11 TEDATA
24863 751 147 37 LINKdotNET AS number
36992 635 281 156 Etisalat MISR
3741 264 987 226 The Internet Solution
24835 217 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
29571 202 19 13 Ci Telecom Autonomous system
33776 184 12 14 Starcomms Nigeria Limited
2018 166 277 64 Tertiary Education Network
16637 162 440 89 MTN Network Solutions
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3714 3855 267 bellsouth.net, inc.
4323 2646 1093 404 Time Warner Telecom
19262 1838 4941 286 Verizon Global Networks
1785 1789 697 132 PaeTec Communications, Inc.
4766 1755 9484 512 Korea Telecom (KIX)
23456 1559 392 866 32-bit ASN transition
7545 1547 298 75 TPG Internet Pty Ltd
20115 1508 1530 641 Charter Communications
6478 1451 288 74 AT&T Worldnet Services
17974 1411 459 28 PT TELEKOMUNIKASI INDONESIA
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 2646 2242 Time Warner Telecom
1785 1789 1657 PaeTec Communications, Inc.
19262 1838 1552 Verizon Global Networks
7545 1547 1472 TPG Internet Pty Ltd
17974 1411 1383 PT TELEKOMUNIKASI INDONESIA
6478 1451 1377 AT&T Worldnet Services
4766 1755 1243 Korea Telecom (KIX)
4755 1395 1236 TATA Communications formerly
22773 1269 1195 Cox Communications, Inc.
10620 1349 1182 TVCABLE BOGOTA
Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65333 PRIVATE 10.0.0.0/8 0 *
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 7018 AT&T WorldNet Servic
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
Complete listing at http://thyme.rand.apnic.net/london/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.0.0.0/8 65333 Internet Assigned Numbers Aut
169.254.0.0/16 65333 Internet Assigned Numbers Aut
172.16.0.0/12 65333 Internet Assigned Numbers Aut
192.0.2.0/24 65333 Internet Assigned Numbers Aut
192.168.0.0/16 0 *
198.18.0.0/15 65333 Internet Assigned Numbers Aut
Complete listing at http://thyme.rand.apnic.net/london/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
5.0.0.0/16 12654 RIPE NCC RIS Project
5.0.0.0/8 237 Merit Network
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
37.0.0.0/8 237 Merit Network
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<<
Complete listing at http://thyme.rand.apnic.net/london/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 /8:33 /9:10 /10:25 /11:70 /12:215
/13:437 /14:757 /15:1349 /16:11426 /17:5576 /18:9259
/19:18814 /20:24157 /21:24337 /22:32194 /23:31058 /24:177059
/25:11 /26:17 /27:24 /28:148 /29:91 /30:41
/31:0 /32:108
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2292 3714 bellsouth.net, inc.
4323 1428 2646 Time Warner Telecom
6478 1407 1451 AT&T Worldnet Services
10620 1240 1349 TVCABLE BOGOTA
11492 1214 1258 Cable One
7011 1068 1170 Citizens Utilities
18566 1066 1085 Covad Communications
1785 1060 1789 PaeTec Communications, Inc.
19262 952 1838 Verizon Global Networks
6503 922 1136 AVANTEL, S.A.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:162 2:23 4:13 5:1 8:325 12:2029
13:6 14:294 15:15 16:3 17:8 20:9
23:1 24:1452 27:537 32:57 33:5 34:2
36:1 37:1 38:684 40:101 41:2299 42:1
44:3 46:501 47:5 49:139 50:49 52:12
55:5 56:2 57:28 58:762 59:482 60:387
61:1014 62:1038 63:1926 64:3735 65:2344 66:4100
67:1753 68:995 69:2876 70:717 71:387 72:1985
73:1 74:2293 75:290 76:328 77:853 78:692
79:437 80:1036 81:815 82:531 83:453 84:633
85:1038 86:524 87:737 88:344 89:1552 90:153
91:3405 92:494 93:1030 94:1155 95:748 96:407
97:248 98:749 99:33 101:25 107:3 108:79
109:845 110:465 111:681 112:303 113:362 114:471
115:620 116:872 117:669 118:630 119:1033 120:236
121:681 122:1590 123:1035 124:1240 125:1212 128:195
129:151 130:165 131:563 132:105 133:20 134:209
135:50 136:214 137:143 138:290 139:107 140:451
141:198 142:342 143:375 144:485 145:51 146:418
147:189 148:609 149:302 150:152 151:230 152:296
153:175 154:2 155:345 156:170 157:311 158:126
159:370 160:313 161:183 162:277 163:150 164:459
165:332 166:473 167:421 168:716 169:148 170:738
171:68 172:5 173:1214 174:503 175:307 176:1
177:3 178:737 180:741 182:378 183:247 184:203
186:922 187:787 188:887 189:1003 190:4316 192:5721
193:4781 194:3488 195:2914 196:1249 197:1 198:3463
199:3688 200:5570 201:1568 202:8033 203:8335 204:3992
205:2315 206:2425 207:2897 208:3866 209:3460 210:2578
211:1327 212:1858 213:1724 214:744 215:62 216:4813
217:1631 218:518 219:381 220:1188 221:424 222:314
223:85
End of report
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