Routing Table Report 08:00 +10GMT Wed 27 Oct, 2010
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 329820
Prefixes after maximum aggregation: 151740
Deaggregation factor: 2.17
Unique aggregates announced to Internet: 164474
Total ASes present in the Internet Routing Table: 34935
Prefixes per ASN: 9.44
Origin-only ASes present in the Internet Routing Table: 30258
Origin ASes announcing only one prefix: 14794
Transit ASes present in the Internet Routing Table: 4677
Transit-only ASes present in the Internet Routing Table: 100
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: 311
Unregistered ASNs in the Routing Table: 116
Number of 32-bit ASNs allocated by the RIRs: 840
Prefixes from 32-bit ASNs in the Routing Table: 1217
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 201
Number of addresses announced to Internet: 2544180480
Equivalent to 151 /8s, 165 /16s and 29 /24s
Percentage of available address space announced: 68.6
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: 134106
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 78365
Total APNIC prefixes after maximum aggregation: 26916
APNIC Deaggregation factor: 2.91
Prefixes being announced from the APNIC address blocks: 76052
Unique aggregates announced from the APNIC address blocks: 34485
APNIC Region origin ASes present in the Internet Routing Table: 4165
APNIC Prefixes per ASN: 18.26
APNIC Region origin ASes announcing only one prefix: 1193
APNIC Region transit ASes present in the Internet Routing Table: 632
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 20
Number of APNIC addresses announced to Internet: 560345344
Equivalent to 33 /8s, 102 /16s and 49 /24s
Percentage of available APNIC address space announced: 75.9
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: 134726
Total ARIN prefixes after maximum aggregation: 69721
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 107786
Unique aggregates announced from the ARIN address blocks: 43510
ARIN Region origin ASes present in the Internet Routing Table: 13905
ARIN Prefixes per ASN: 7.75
ARIN Region origin ASes announcing only one prefix: 5355
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: 738169600
Equivalent to 43 /8s, 255 /16s and 147 /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: 77514
Total RIPE prefixes after maximum aggregation: 44618
RIPE Deaggregation factor: 1.74
Prefixes being announced from the RIPE address blocks: 70932
Unique aggregates announced from the RIPE address blocks: 46297
RIPE Region origin ASes present in the Internet Routing Table: 14929
RIPE Prefixes per ASN: 4.75
RIPE Region origin ASes announcing only one prefix: 7689
RIPE Region transit ASes present in the Internet Routing Table: 2286
Average RIPE Region AS path length visible: 3.4
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 442707968
Equivalent to 26 /8s, 99 /16s and 48 /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: 29779
Total LACNIC prefixes after maximum aggregation: 7124
LACNIC Deaggregation factor: 4.18
Prefixes being announced from the LACNIC address blocks: 28610
Unique aggregates announced from the LACNIC address blocks: 15343
LACNIC Region origin ASes present in the Internet Routing Table: 1361
LACNIC Prefixes per ASN: 21.02
LACNIC Region origin ASes announcing only one prefix: 431
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: 76636416
Equivalent to 4 /8s, 145 /16s and 97 /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: 7541
Total AfriNIC prefixes after maximum aggregation: 1871
AfriNIC Deaggregation factor: 4.03
Prefixes being announced from the AfriNIC address blocks: 5847
Unique aggregates announced from the AfriNIC address blocks: 1703
AfriNIC Region origin ASes present in the Internet Routing Table: 410
AfriNIC Prefixes per ASN: 14.26
AfriNIC Region origin ASes announcing only one prefix: 126
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: 20923136
Equivalent to 1 /8s, 63 /16s and 67 /24s
Percentage of available AfriNIC address space announced: 62.4
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 1728 9453 509 Korea Telecom (KIX)
7545 1416 299 78 TPG Internet Pty Ltd
4755 1373 378 157 TATA Communications formerly
17488 1364 156 121 Hathway IP Over Cable Interne
17974 1271 303 78 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 1622 244 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 3762 3667 280 bellsouth.net, inc.
4323 2611 1108 391 Time Warner Telecom
1785 1799 698 130 PaeTec Communications, Inc.
19262 1777 4833 279 Verizon Global Networks
20115 1506 1528 647 Charter Communications
7018 1451 9821 933 AT&T WorldNet Services
6478 1390 279 92 AT&T Worldnet Services
2386 1317 556 932 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 445 2027 390 TDC Tele Danmark
8866 420 133 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
12479 365 576 5 Uni2 Autonomous System
31148 358 19 81 FreeNet ISP
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 1206 2581 362 UniNet S.A. de C.V.
28573 1198 920 84 NET Servicos de Comunicao S.A
7303 805 440 96 Telecom Argentina Stet-France
6503 781 223 258 AVANTEL, S.A.
22047 563 310 15 VTR PUNTO NET S.A.
14420 546 39 77 ANDINATEL S.A.
3816 484 210 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 1085 445 10 TEDATA
24863 740 147 37 LINKdotNET AS number
36992 644 278 160 Etisalat MISR
3741 267 891 225 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 3762 3667 280 bellsouth.net, inc.
4323 2611 1108 391 Time Warner Telecom
1785 1799 698 130 PaeTec Communications, Inc.
19262 1777 4833 279 Verizon Global Networks
4766 1728 9453 509 Korea Telecom (KIX)
20115 1506 1528 647 Charter Communications
7018 1451 9821 933 AT&T WorldNet Services
7545 1416 299 78 TPG Internet Pty Ltd
6478 1390 279 92 AT&T Worldnet Services
4755 1373 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 2611 2220 Time Warner Telecom
1785 1799 1669 PaeTec Communications, Inc.
19262 1777 1498 Verizon Global Networks
7545 1416 1338 TPG Internet Pty Ltd
6478 1390 1298 AT&T Worldnet Services
17488 1364 1243 Hathway IP Over Cable Interne
4766 1728 1219 Korea Telecom (KIX)
4755 1373 1216 TATA Communications formerly
17974 1271 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
46.21.16.0/20 44160 RIPE Network Coordination Cen
46.133.0.0/16 21497 UMC Autonomous System
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 /8:34 /9:10 /10:25 /11:68 /12:208
/13:419 /14:745 /15:1346 /16:11334 /17:5497 /18:9320
/19:18658 /20:23849 /21:23726 /22:31261 /23:30367 /24:172518
/25:11 /26:18 /27:26 /28:149 /29:92 /30:36
/31:0 /32:103
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2326 3762 bellsouth.net, inc.
4323 1404 2611 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 990 1085 TEDATA
19262 903 1777 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 2:11 4:13 8:314 12:1997 13:8
14:28 15:18 16:3 17:9 20:9 24:1390
27:378 31:1 32:59 33:11 38:693 40:101
41:2591 44:3 46:183 47:10 49:4 50:3
52:12 55:6 56:2 57:27 58:741 59:496
60:478 61:999 62:1006 63:1958 64:3728 65:2343
66:4060 67:1818 68:1132 69:2848 70:753 71:376
72:1904 73:2 74:2330 75:294 76:326 77:878
78:679 79:445 80:1066 81:801 82:508 83:454
84:686 85:1026 86:475 87:704 88:327 89:1574
90:109 91:3131 92:436 93:998 94:1119 95:691
96:390 97:222 98:630 99:32 101:3 108:64
109:715 110:438 111:619 112:293 113:304 114:456
115:601 116:1129 117:648 118:534 119:972 120:157
121:689 122:1555 123:947 124:1215 125:1243 128:177
129:146 130:163 131:561 132:271 133:20 134:199
135:46 136:209 137:136 138:279 139:107 140:456
141:198 142:333 143:362 144:490 145:55 146:427
147:174 148:602 149:307 150:146 151:231 152:290
153:175 154:2 155:370 156:162 157:310 158:112
159:359 160:312 161:190 162:273 163:156 164:424
165:346 166:470 167:425 168:661 169:153 170:708
171:61 172:2 173:1050 174:483 175:241 176:1
177:1 178:551 180:641 181:1 182:228 183:239
184:141 186:741 187:551 188:855 189:808 190:4150
192:5705 193:4743 194:3430 195:2824 196:1189 198:3473
199:3599 200:5376 201:1582 202:7937 203:8182 204:3942
205:2303 206:2486 207:2952 208:3897 209:3439 210:2511
211:1275 212:1830 213:1725 214:682 215:66 216:4743
217:1559 218:476 219:397 220:1175 221:385 222:314
223:53
End of report