Routing Table Report 08:00 +10GMT Thu 27 Jan, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 338023
Prefixes after maximum aggregation: 153953
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 169129
Total ASes present in the Internet Routing Table: 35562
Prefixes per ASN: 9.51
Origin-only ASes present in the Internet Routing Table: 30763
Origin ASes announcing only one prefix: 14957
Transit ASes present in the Internet Routing Table: 4799
Transit-only ASes present in the Internet Routing Table: 107
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 25
Max AS path prepend of ASN (22394) 19
Prefixes from unregistered ASNs in the Routing Table: 319
Unregistered ASNs in the Routing Table: 124
Number of 32-bit ASNs allocated by the RIRs: 1040
Prefixes from 32-bit ASNs in the Routing Table: 1605
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 207
Number of addresses announced to Internet: 2482921472
Equivalent to 147 /8s, 254 /16s and 96 /24s
Percentage of available address space announced: 67.0
Percentage of allocated address space announced: 69.2
Percentage of available address space allocated: 96.8
Percentage of address space in use by end-sites: 87.9
Total number of prefixes smaller than registry allocations: 137694
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 81490
Total APNIC prefixes after maximum aggregation: 27791
APNIC Deaggregation factor: 2.93
Prefixes being announced from the APNIC address blocks: 79103
Unique aggregates announced from the APNIC address blocks: 35469
APNIC Region origin ASes present in the Internet Routing Table: 4260
APNIC Prefixes per ASN: 18.57
APNIC Region origin ASes announcing only one prefix: 1227
APNIC Region transit ASes present in the Internet Routing Table: 656
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 583581696
Equivalent to 34 /8s, 200 /16s and 192 /24s
Percentage of available APNIC address space announced: 79.1
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: 135067
Total ARIN prefixes after maximum aggregation: 69269
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 108020
Unique aggregates announced from the ARIN address blocks: 44415
ARIN Region origin ASes present in the Internet Routing Table: 14068
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: 1392
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 750341888
Equivalent to 44 /8s, 185 /16s and 79 /24s
Percentage of available ARIN address space announced: 63.0
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, 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: 80844
Total RIPE prefixes after maximum aggregation: 46015
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 74245
Unique aggregates announced from the RIPE address blocks: 48154
RIPE Region origin ASes present in the Internet Routing Table: 15223
RIPE Prefixes per ASN: 4.88
RIPE Region origin ASes announcing only one prefix: 7775
RIPE Region transit ASes present in the Internet Routing Table: 2354
Average RIPE Region AS path length visible: 3.4
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 456600576
Equivalent to 27 /8s, 55 /16s and 44 /24s
Percentage of available RIPE address space announced: 75.6
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, 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: 31080
Total LACNIC prefixes after maximum aggregation: 7149
LACNIC Deaggregation factor: 4.35
Prefixes being announced from the LACNIC address blocks: 29996
Unique aggregates announced from the LACNIC address blocks: 15773
LACNIC Region origin ASes present in the Internet Routing Table: 1412
LACNIC Prefixes per ASN: 21.24
LACNIC Region origin ASes announcing only one prefix: 438
LACNIC Region transit ASes present in the Internet Routing Table: 242
Average LACNIC Region AS path length visible: 3.9
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 80145664
Equivalent to 4 /8s, 198 /16s and 237 /24s
Percentage of available LACNIC address space announced: 59.7
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: 7259
Total AfriNIC prefixes after maximum aggregation: 1838
AfriNIC Deaggregation factor: 3.95
Prefixes being announced from the AfriNIC address blocks: 5735
Unique aggregates announced from the AfriNIC address blocks: 1784
AfriNIC Region origin ASes present in the Internet Routing Table: 430
AfriNIC Prefixes per ASN: 13.34
AfriNIC Region origin ASes announcing only one prefix: 129
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: 17
Number of AfriNIC addresses announced to Internet: 21576960
Equivalent to 1 /8s, 73 /16s and 61 /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 1759 9484 515 Korea Telecom (KIX)
7545 1577 300 81 TPG Internet Pty Ltd
4755 1402 636 160 TATA Communications formerly
17974 1387 459 28 PT TELEKOMUNIKASI INDONESIA
24560 1095 317 181 Bharti Airtel Ltd., Telemedia
9583 1042 76 485 Sify Limited
17488 949 162 103 Hathway IP Over Cable Interne
4808 922 2012 266 CNCGROUP IP network: China169
18101 921 116 140 Reliance Infocom Ltd Internet
9829 864 731 49 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 3709 3855 271 bellsouth.net, inc.
4323 2641 1093 404 Time Warner Telecom
19262 1840 4943 284 Verizon Global Networks
1785 1790 698 133 PaeTec Communications, Inc.
20115 1519 1529 643 Charter Communications
6478 1474 291 72 AT&T Worldnet Services
7018 1378 6708 894 AT&T WorldNet Services
2386 1299 554 935 AT&T Data Communications Serv
22773 1273 2864 77 Cox Communications, Inc.
11492 1270 235 71 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 502 1763 307 UPC Distribution Services
9116 484 328 31 Goldenlines main autonomous s
9198 465 266 14 Kazakhtelecom Data Network Ad
34984 457 97 137 BILISIM TELEKOM
3292 444 2010 387 TDC Tele Danmark
8866 438 133 23 Bulgarian Telecommunication C
12479 409 577 6 Uni2 Autonomous System
8551 404 355 38 Bezeq International
702 401 1819 314 UUNET - Commercial IP service
3320 401 7616 350 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 1357 252 165 TVCABLE BOGOTA
28573 1225 959 82 NET Servicos de Comunicao S.A
8151 1198 2600 352 UniNet S.A. de C.V.
6503 1138 355 79 AVANTEL, S.A.
7303 863 460 103 Telecom Argentina Stet-France
14420 612 54 89 ANDINATEL S.A.
22047 567 310 15 VTR PUNTO NET S.A.
3816 499 220 95 Empresa Nacional de Telecomun
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 456 34 31 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 773 445 11 TEDATA
24863 758 147 37 LINKdotNET AS number
36992 640 329 19 Etisalat MISR
3741 264 987 226 The Internet Solution
24835 216 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
33776 194 12 15 Starcomms Nigeria Limited
29571 193 17 11 Ci Telecom Autonomous system
16637 163 440 89 MTN Network Solutions
36874 139 24 6 Cybersmart
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 3709 3855 271 bellsouth.net, inc.
4323 2641 1093 404 Time Warner Telecom
19262 1840 4943 284 Verizon Global Networks
1785 1790 698 133 PaeTec Communications, Inc.
4766 1759 9484 515 Korea Telecom (KIX)
23456 1605 399 890 32-bit ASN transition
7545 1577 300 81 TPG Internet Pty Ltd
20115 1519 1529 643 Charter Communications
6478 1474 291 72 AT&T Worldnet Services
4755 1402 636 160 TATA Communications formerly
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 2641 2237 Time Warner Telecom
1785 1790 1657 PaeTec Communications, Inc.
19262 1840 1556 Verizon Global Networks
7545 1577 1496 TPG Internet Pty Ltd
6478 1474 1402 AT&T Worldnet Services
17974 1387 1359 PT TELEKOMUNIKASI INDONESIA
4766 1759 1244 Korea Telecom (KIX)
4755 1402 1242 TATA Communications formerly
11492 1270 1199 Cable One
22773 1273 1196 Cox Communications, Inc.
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
5.1.0.0/21 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
41.57.192.0/18 22750 BCSNET
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>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 /8:27 /9:10 /10:26 /11:70 /12:216
/13:438 /14:762 /15:1360 /16:11447 /17:5583 /18:9256
/19:18858 /20:24202 /21:24431 /22:32335 /23:31239 /24:177317
/25:11 /26:17 /27:24 /28:151 /29:91 /30:44
/31:0 /32:108
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2287 3709 bellsouth.net, inc.
6478 1428 1474 AT&T Worldnet Services
4323 1427 2641 Time Warner Telecom
10620 1248 1357 TVCABLE BOGOTA
11492 1226 1270 Cable One
18566 1088 1107 Covad Communications
7011 1068 1174 Citizens Utilities
1785 1059 1790 PaeTec Communications, Inc.
19262 953 1840 Verizon Global Networks
23456 937 1605 32-bit ASN transition
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:166 2:29 4:13 5:1 8:330 12:2031
13:1 14:357 15:15 16:3 17:8 20:9
23:1 24:1460 27:549 32:57 33:5 34:2
36:1 37:1 38:689 40:101 41:2280 42:1
44:3 46:509 47:5 49:143 50:58 52:12
55:6 56:2 57:27 58:766 59:481 60:389
61:1020 62:1018 63:1917 64:3735 65:2332 66:4064
67:1752 68:997 69:2865 70:716 71:392 72:1984
73:1 74:2296 75:292 76:330 77:821 78:707
79:437 80:1033 81:792 82:533 83:462 84:641
85:1044 86:530 87:737 88:353 89:1574 90:157
91:3419 92:493 93:1012 94:1155 95:763 96:408
97:249 98:755 99:33 101:25 107:3 108:80
109:848 110:468 111:684 112:304 113:358 114:477
115:625 116:872 117:669 118:635 119:1002 120:239
121:687 122:1604 123:1046 124:1244 125:1212 128:195
129:151 130:168 131:565 132:103 133:20 134:210
135:49 136:213 137:144 138:293 139:117 140:463
141:198 142:347 143:374 144:483 145:51 146:416
147:193 148:609 149:272 150:152 151:231 152:300
153:175 154:2 155:346 156:171 157:312 158:129
159:369 160:313 161:193 162:276 163:141 164:469
165:331 166:481 167:422 168:729 169:147 170:741
171:66 172:2 173:1257 174:515 175:308 176:1
177:4 178:758 180:754 182:386 183:250 184:207
186:952 187:788 188:898 189:1033 190:4380 192:5732
193:4772 194:3478 195:2921 196:1162 197:2 198:3473
199:3720 200:5568 201:1577 202:8054 203:8312 204:4016
205:2324 206:2434 207:2889 208:3872 209:3443 210:2579
211:1324 212:1792 213:1692 214:748 215:62 216:4799
217:1625 218:515 219:372 220:1190 221:430 222:316
223:89
End of report
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