Routing Table Report 08:00 +10GMT Thu 28 Oct, 2010
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 329880
Prefixes after maximum aggregation: 151860
Deaggregation factor: 2.17
Unique aggregates announced to Internet: 163869
Total ASes present in the Internet Routing Table: 34969
Prefixes per ASN: 9.43
Origin-only ASes present in the Internet Routing Table: 30282
Origin ASes announcing only one prefix: 14807
Transit ASes present in the Internet Routing Table: 4687
Transit-only ASes present in the Internet Routing Table: 103
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 25
Max AS path prepend of ASN (41664) 21
Prefixes from unregistered ASNs in the Routing Table: 310
Unregistered ASNs in the Routing Table: 118
Number of 32-bit ASNs allocated by the RIRs: 844
Prefixes from 32-bit ASNs in the Routing Table: 1222
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 193
Number of addresses announced to Internet: 2546368000
Equivalent to 151 /8s, 198 /16s and 126 /24s
Percentage of available address space announced: 68.7
Percentage of allocated address space announced: 72.6
Percentage of available address space allocated: 94.6
Percentage of address space in use by end-sites: 85.6
Total number of prefixes smaller than registry allocations: 134071
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 78347
Total APNIC prefixes after maximum aggregation: 26918
APNIC Deaggregation factor: 2.91
Prefixes being announced from the APNIC address blocks: 76044
Unique aggregates announced from the APNIC address blocks: 33831
APNIC Region origin ASes present in the Internet Routing Table: 4171
APNIC Prefixes per ASN: 18.23
APNIC Region origin ASes announcing only one prefix: 1194
APNIC Region transit ASes present in the Internet Routing Table: 634
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 20
Number of APNIC addresses announced to Internet: 562675712
Equivalent to 33 /8s, 137 /16s and 192 /24s
Percentage of available APNIC address space announced: 76.2
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: 134778
Total ARIN prefixes after maximum aggregation: 69745
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 107846
Unique aggregates announced from the ARIN address blocks: 43561
ARIN Region origin ASes present in the Internet Routing Table: 13907
ARIN Prefixes per ASN: 7.75
ARIN Region origin ASes announcing only one prefix: 5350
ARIN Region transit ASes present in the Internet Routing Table: 1378
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 738253824
Equivalent to 44 /8s, 0 /16s and 220 /24s
Percentage of available ARIN address space announced: 62.9
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, 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, 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, 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: 77605
Total RIPE prefixes after maximum aggregation: 44679
RIPE Deaggregation factor: 1.74
Prefixes being announced from the RIPE address blocks: 71038
Unique aggregates announced from the RIPE address blocks: 46363
RIPE Region origin ASes present in the Internet Routing Table: 14947
RIPE Prefixes per ASN: 4.75
RIPE Region origin ASes announcing only one prefix: 7702
RIPE Region transit ASes present in the Internet Routing Table: 2292
Average RIPE Region AS path length visible: 3.4
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 442711808
Equivalent to 26 /8s, 99 /16s and 63 /24s
Percentage of available RIPE address space announced: 77.6
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, 25/8, 31/8, 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: 29720
Total LACNIC prefixes after maximum aggregation: 7144
LACNIC Deaggregation factor: 4.16
Prefixes being announced from the LACNIC address blocks: 28552
Unique aggregates announced from the LACNIC address blocks: 15325
LACNIC Region origin ASes present in the Internet Routing Table: 1364
LACNIC Prefixes per ASN: 20.93
LACNIC Region origin ASes announcing only one prefix: 432
LACNIC Region transit ASes present in the Internet Routing Table: 232
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 76619264
Equivalent to 4 /8s, 145 /16s and 30 /24s
Percentage of available LACNIC address space announced: 57.1
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: 7531
Total AfriNIC prefixes after maximum aggregation: 1874
AfriNIC Deaggregation factor: 4.02
Prefixes being announced from the AfriNIC address blocks: 5830
Unique aggregates announced from the AfriNIC address blocks: 1704
AfriNIC Region origin ASes present in the Internet Routing Table: 412
AfriNIC Prefixes per ASN: 14.15
AfriNIC Region origin ASes announcing only one prefix: 129
AfriNIC Region transit ASes present in the Internet Routing Table: 89
Average AfriNIC Region AS path length visible: 3.3
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 20918528
Equivalent to 1 /8s, 63 /16s and 49 /24s
Percentage of available AfriNIC address space announced: 62.3
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1722 9453 509 Korea Telecom (KIX)
7545 1419 299 78 TPG Internet Pty Ltd
4755 1375 378 157 TATA Communications formerly
17488 1364 156 121 Hathway IP Over Cable Interne
17974 1272 303 79 PT TELEKOMUNIKASI INDONESIA
24560 1053 309 173 Bharti Airtel Ltd., Telemedia
9583 1031 76 493 Sify Limited
18101 893 116 133 Reliance Infocom Ltd Internet
4808 882 1620 245 CNCGROUP IP network: China169
9829 827 694 27 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 3761 3667 280 bellsouth.net, inc.
4323 2604 1108 390 Time Warner Telecom
1785 1799 698 130 PaeTec Communications, Inc.
19262 1776 4817 278 Verizon Global Networks
20115 1507 1528 644 Charter Communications
7018 1451 9821 936 AT&T WorldNet Services
6478 1390 279 92 AT&T Worldnet Services
2386 1313 556 928 AT&T Data Communications Serv
11492 1237 231 74 Cable One
22773 1214 2859 62 Cox Communications, Inc.
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
9116 540 328 33 Goldenlines main autonomous s
3292 447 2027 391 TDC Tele Danmark
8866 423 133 25 Bulgarian Telecommunication C
702 404 1869 318 UUNET - Commercial IP service
8551 404 355 38 Bezeq International
34984 381 91 188 BILISIM TELEKOM
3301 379 1688 335 TeliaNet Sweden
3320 377 7332 330 Deutsche Telekom AG
30890 375 80 205 Evolva Telecom
12479 365 576 5 Uni2 Autonomous System
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 1330 248 155 TVCABLE BOGOTA
8151 1207 2581 363 UniNet S.A. de C.V.
28573 1185 928 84 NET Servicos de Comunicao S.A
7303 799 437 107 Telecom Argentina Stet-France
6503 784 225 259 AVANTEL, S.A.
22047 564 310 15 VTR PUNTO NET S.A.
14420 549 40 77 ANDINATEL S.A.
3816 485 210 97 Empresa Nacional de Telecomun
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 448 32 27 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 1083 445 10 TEDATA
24863 741 147 37 LINKdotNET AS number
36992 642 278 160 Etisalat MISR
3741 268 907 225 The Internet Solution
24835 208 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
29571 203 19 11 Ci Telecom Autonomous system
2018 197 277 64 Tertiary Education Network
33776 196 12 14 Starcomms Nigeria Limited
16637 157 441 94 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 3761 3667 280 bellsouth.net, inc.
4323 2604 1108 390 Time Warner Telecom
1785 1799 698 130 PaeTec Communications, Inc.
19262 1776 4817 278 Verizon Global Networks
4766 1722 9453 509 Korea Telecom (KIX)
20115 1507 1528 644 Charter Communications
7018 1451 9821 936 AT&T WorldNet Services
7545 1419 299 78 TPG Internet Pty Ltd
6478 1390 279 92 AT&T Worldnet Services
4755 1375 378 157 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 2604 2214 Time Warner Telecom
1785 1799 1669 PaeTec Communications, Inc.
19262 1776 1498 Verizon Global Networks
7545 1419 1341 TPG Internet Pty Ltd
6478 1390 1298 AT&T Worldnet Services
17488 1364 1243 Hathway IP Over Cable Interne
4755 1375 1218 TATA Communications formerly
4766 1722 1213 Korea Telecom (KIX)
17974 1272 1193 PT TELEKOMUNIKASI INDONESIA
10620 1330 1175 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 5.0.0.0/8 0 *
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
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
31.0.0.0/16 12654 RIPE NCC RIS Project
31.1.0.0/21 12654 RIPE NCC RIS Project
31.1.24.0/24 12654 RIPE NCC RIS Project
36.0.0.0/8 237 Merit Network
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
42.0.0.0/8 237 Merit Network
46.18.88.0/22 50535 EUSKILL SARL
46.21.32.0/20 44869 RIPE Network Coordination Cen
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
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 /8:35 /9:10 /10:25 /11:68 /12:208
/13:419 /14:745 /15:1345 /16:11331 /17:5503 /18:9322
/19:18642 /20:23863 /21:23718 /22:31295 /23:30386 /24:172529
/25:11 /26:18 /27:26 /28:150 /29:92 /30:37
/31:0 /32:102
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2325 3761 bellsouth.net, inc.
4323 1399 2604 Time Warner Telecom
6478 1352 1390 AT&T Worldnet Services
10620 1222 1330 TVCABLE BOGOTA
11492 1194 1237 Cable One
1785 1078 1799 PaeTec Communications, Inc.
7011 1059 1160 Citizens Utilities
18566 1040 1059 Covad Communications
8452 989 1083 TEDATA
19262 903 1776 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:91 2:13 4:13 8:314 12:1994 13:8
14:29 15:18 16:3 17:9 20:9 24:1392
27:379 31:1 32:59 33:11 38:692 40:101
41:2588 44:3 46:188 47:10 49:4 50:3
52:12 55:5 56:2 57:27 58:740 59:497
60:477 61:994 62:1003 63:1957 64:3729 65:2342
66:4054 67:1824 68:1133 69:2854 70:752 71:376
72:1894 73:2 74:2330 75:294 76:326 77:853
78:682 79:444 80:1053 81:793 82:516 83:455
84:684 85:1023 86:485 87:705 88:329 89:1576
90:109 91:3141 92:439 93:984 94:1118 95:699
96:390 97:223 98:630 99:32 101:3 108:64
109:717 110:435 111:619 112:300 113:302 114:455
115:605 116:1130 117:652 118:547 119:974 120:157
121:679 122:1539 123:947 124:1214 125:1239 128:177
129:146 130:163 131:561 132:271 133:20 134:199
135:46 136:209 137:136 138:277 139:107 140:455
141:198 142:333 143:358 144:471 145:55 146:426
147:174 148:602 149:308 150:147 151:231 152:290
153:175 154:2 155:370 156:162 157:310 158:112
159:359 160:311 161:190 162:273 163:156 164:414
165:347 166:471 167:426 168:661 169:154 170:709
171:61 172:2 173:1064 174:484 175:241 176:1
178:557 180:677 182:230 183:239 184:141 186:748
187:553 188:855 189:802 190:4150 192:5710 193:4746
194:3447 195:2827 196:1191 198:3474 199:3598 200:5378
201:1583 202:7933 203:8176 204:3955 205:2330 206:2487
207:2934 208:3895 209:3440 210:2504 211:1273 212:1824
213:1729 214:664 215:66 216:4741 217:1565 218:476
219:397 220:1176 221:379 222:314 223:53
End of report