Routing Table Report 08:00 +10GMT Sun 25 Jul, 2010
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 321702
Prefixes after maximum aggregation: 148495
Deaggregation factor: 2.17
Unique aggregates announced to Internet: 159308
Total ASes present in the Internet Routing Table: 34301
Prefixes per ASN: 9.38
Origin-only ASes present in the Internet Routing Table: 29726
Origin ASes announcing only one prefix: 14475
Transit ASes present in the Internet Routing Table: 4575
Transit-only ASes present in the Internet Routing Table: 106
Average AS path length visible in the Internet Routing Table: 3.5
Max AS path length visible: 26
Max AS path prepend of ASN (41664) 21
Prefixes from unregistered ASNs in the Routing Table: 320
Unregistered ASNs in the Routing Table: 112
Number of 32-bit ASNs allocated by the RIRs: 702
Prefixes from 32-bit ASNs in the Routing Table: 859
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 162
Number of addresses announced to Internet: 2563174912
Equivalent to 152 /8s, 198 /16s and 242 /24s
Percentage of available address space announced: 69.2
Percentage of allocated address space announced: 74.6
Percentage of available address space allocated: 92.8
Percentage of address space in use by end-sites: 83.9
Total number of prefixes smaller than registry allocations: 151435
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 75513
Total APNIC prefixes after maximum aggregation: 26155
APNIC Deaggregation factor: 2.89
Prefixes being announced from the APNIC address blocks: 73178
Unique aggregates announced from the APNIC address blocks: 33498
APNIC Region origin ASes present in the Internet Routing Table: 4076
APNIC Prefixes per ASN: 17.95
APNIC Region origin ASes announcing only one prefix: 1150
APNIC Region transit ASes present in the Internet Routing Table: 619
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 532456960
Equivalent to 31 /8s, 188 /16s and 166 /24s
Percentage of available APNIC address space announced: 79.3
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, 43/8, 58/8, 59/8, 60/8,
61/8, 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: 133075
Total ARIN prefixes after maximum aggregation: 68982
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 106432
Unique aggregates announced from the ARIN address blocks: 42015
ARIN Region origin ASes present in the Internet Routing Table: 13749
ARIN Prefixes per ASN: 7.74
ARIN Region origin ASes announcing only one prefix: 5279
ARIN Region transit ASes present in the Internet Routing Table: 1355
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 729823488
Equivalent to 43 /8s, 128 /16s and 57 /24s
Percentage of available ARIN address space announced: 62.1
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: 75506
Total RIPE prefixes after maximum aggregation: 43432
RIPE Deaggregation factor: 1.74
Prefixes being announced from the RIPE address blocks: 68599
Unique aggregates announced from the RIPE address blocks: 44598
RIPE Region origin ASes present in the Internet Routing Table: 14621
RIPE Prefixes per ASN: 4.69
RIPE Region origin ASes announcing only one prefix: 7519
RIPE Region transit ASes present in the Internet Routing Table: 2232
Average RIPE Region AS path length visible: 3.4
Max RIPE Region AS path length visible: 24
Number of RIPE addresses announced to Internet: 433054464
Equivalent to 25 /8s, 207 /16s and 227 /24s
Percentage of available RIPE address space announced: 75.9
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: 28813
Total LACNIC prefixes after maximum aggregation: 6911
LACNIC Deaggregation factor: 4.17
Prefixes being announced from the LACNIC address blocks: 27450
Unique aggregates announced from the LACNIC address blocks: 14557
LACNIC Region origin ASes present in the Internet Routing Table: 1300
LACNIC Prefixes per ASN: 21.12
LACNIC Region origin ASes announcing only one prefix: 406
LACNIC Region transit ASes present in the Internet Routing Table: 227
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 26
Number of LACNIC addresses announced to Internet: 75721216
Equivalent to 4 /8s, 131 /16s and 106 /24s
Percentage of available LACNIC address space announced: 56.4
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: 7266
Total AfriNIC prefixes after maximum aggregation: 1861
AfriNIC Deaggregation factor: 3.90
Prefixes being announced from the AfriNIC address blocks: 5576
Unique aggregates announced from the AfriNIC address blocks: 1620
AfriNIC Region origin ASes present in the Internet Routing Table: 379
AfriNIC Prefixes per ASN: 14.71
AfriNIC Region origin ASes announcing only one prefix: 121
AfriNIC Region transit ASes present in the Internet Routing Table: 83
Average AfriNIC Region AS path length visible: 3.3
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 19908096
Equivalent to 1 /8s, 47 /16s and 198 /24s
Percentage of available AfriNIC address space announced: 59.3
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 1694 8409 484 Korea Telecom (KIX)
7545 1362 232 105 TPG Internet Pty Ltd
17488 1330 146 127 Hathway IP Over Cable Interne
4755 1317 298 152 TATA Communications formerly
17974 1166 286 54 PT TELEKOMUNIKASI INDONESIA
9583 1002 74 486 Sify Limited
24560 987 304 181 Bharti Airtel Ltd., Telemedia
9829 808 685 32 BSNL National Internet Backbo
4808 761 1475 191 CNCGROUP IP network: China169
4134 753 21740 411 CHINANET-BACKBONE
Complete listing at http://thyme.apnic.net/london/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3886 3716 284 bellsouth.net, inc.
4323 2728 1112 396 Time Warner Telecom
19262 1946 4567 278 Verizon Global Networks
1785 1780 698 129 PaeTec Communications, Inc.
20115 1488 1522 654 Charter Communications
7018 1473 5734 958 AT&T WorldNet Services
2386 1282 553 912 AT&T Data Communications Serv
6478 1263 253 180 AT&T Worldnet Services
22773 1171 2858 61 Cox Communications, Inc.
3356 1159 10878 403 Level 3 Communications, LLC
Complete listing at http://thyme.apnic.net/london/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
35805 653 56 6 United Telecom of Georgia
9116 532 328 33 Goldenlines main autonomous s
9198 497 202 13 Kazakhtelecom Data Network Ad
3292 450 2026 391 TDC Tele Danmark
30890 443 111 206 Evolva Telecom
702 413 1869 325 UUNET - Commercial IP service
8551 403 355 38 Bezeq International
8866 403 117 18 Bulgarian Telecommunication C
3320 375 7329 326 Deutsche Telekom AG
3301 371 1414 326 TeliaNet Sweden
Complete listing at http://thyme.apnic.net/london/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1441 3048 243 UniNet S.A. de C.V.
10620 1072 240 149 TVCABLE BOGOTA
28573 1012 818 100 NET Servicos de Comunicao S.A
7303 745 395 92 Telecom Argentina Stet-France
6503 696 177 219 AVANTEL, S.A.
22047 553 310 15 VTR PUNTO NET S.A.
14420 507 32 73 ANDINATEL S.A.
3816 491 208 87 Empresa Nacional de Telecomun
7738 477 922 30 Telecomunicacoes da Bahia S.A
11172 446 99 76 Servicios Alestra S.A de C.V
Complete listing at http://thyme.apnic.net/london/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 1107 445 10 TEDATA
24863 723 146 36 LINKdotNET AS number
36992 651 279 185 Etisalat MISR
3741 265 898 228 The Internet Solution
33776 220 12 12 Starcomms Nigeria Limited
2018 210 245 62 Tertiary Education Network
6713 195 186 16 Itissalat Al-MAGHRIB
24835 189 78 9 RAYA Telecom - Egypt
29571 183 19 10 Ci Telecom Autonomous system
16637 172 441 100 MTN Network Solutions
Complete listing at http://thyme.apnic.net/london/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3886 3716 284 bellsouth.net, inc.
4323 2728 1112 396 Time Warner Telecom
19262 1946 4567 278 Verizon Global Networks
1785 1780 698 129 PaeTec Communications, Inc.
4766 1694 8409 484 Korea Telecom (KIX)
20115 1488 1522 654 Charter Communications
7018 1473 5734 958 AT&T WorldNet Services
8151 1441 3048 243 UniNet S.A. de C.V.
7545 1362 232 105 TPG Internet Pty Ltd
17488 1330 146 127 Hathway IP Over Cable Interne
Complete listing at http://thyme.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 2728 2332 Time Warner Telecom
19262 1946 1668 Verizon Global Networks
1785 1780 1651 PaeTec Communications, Inc.
7545 1362 1257 TPG Internet Pty Ltd
4766 1694 1210 Korea Telecom (KIX)
17488 1330 1203 Hathway IP Over Cable Interne
8151 1441 1198 UniNet S.A. de C.V.
4755 1317 1165 TATA Communications formerly
17974 1166 1112 PT TELEKOMUNIKASI INDONESIA
22773 1171 1110 Cox Communications, Inc.
Complete listing at http://thyme.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 7018 AT&T WorldNet Servic
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.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 65333 Internet Assigned Numbers Aut
198.18.0.0/15 65333 Internet Assigned Numbers Aut
Complete listing at http://thyme.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
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
41.223.188.0/24 22351 Intelsat
41.223.189.0/24 6453 Teleglobe Inc.
41.223.196.0/24 36990 Alkan Telecom Ltd
41.223.197.0/24 36990 Alkan Telecom Ltd
41.223.198.0/24 36990 Alkan Telecom Ltd
Complete listing at http://thyme.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 /8:38 /9:10 /10:25 /11:67 /12:198
/13:407 /14:709 /15:1295 /16:11152 /17:5330 /18:9139
/19:18619 /20:23102 /21:23022 /22:29910 /23:29519 /24:168767
/25:9 /26:16 /27:29 /28:144 /29:79 /30:29
/31:0 /32:87
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2490 3886 bellsouth.net, inc.
4323 1393 2728 Time Warner Telecom
4766 1326 1694 Korea Telecom (KIX)
1785 1242 1780 PaeTec Communications, Inc.
17488 1074 1330 Hathway IP Over Cable Interne
11492 1067 1158 Cable One
18566 1040 1059 Covad Communications
8452 1000 1107 TEDATA
10620 988 1072 TVCABLE BOGOTA
19262 912 1946 Verizon Global Networks
Complete listing at http://thyme.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:11 2:2 4:13 8:290 12:2016 13:7
14:1 15:21 16:3 17:8 20:6 24:1431
27:250 31:1 32:47 33:12 38:683 40:98
41:2441 44:3 46:10 47:17 52:9 55:5
56:2 57:36 58:671 59:500 60:460 61:986
62:1021 63:1967 64:3666 65:2340 66:4040 67:1822
68:1092 69:2704 70:708 71:446 72:1943 73:2
74:2260 75:250 76:318 77:899 78:623 79:433
80:996 81:766 82:499 83:439 84:672 85:1045
86:466 87:699 88:340 89:1557 90:95 91:2895
92:506 93:985 94:1406 95:656 96:523 97:211
98:614 99:33 108:105 109:582 110:389 111:528
112:284 113:328 114:436 115:572 116:1072 117:646
118:476 119:881 120:134 121:703 122:1510 123:940
124:1103 125:1311 128:176 129:191 130:162 131:547
132:245 133:16 134:188 135:45 136:240 137:142
138:264 139:101 140:459 141:196 142:327 143:368
144:462 145:50 146:445 147:166 148:646 149:299
150:155 151:230 152:280 153:168 154:1 155:355
156:156 157:296 158:110 159:355 160:316 161:177
162:254 163:164 164:406 165:363 166:461 167:413
168:643 169:155 170:710 171:59 172:2 173:954
174:502 175:151 176:1 178:316 180:464 182:143
183:240 184:115 186:520 187:403 188:1013 189:764
190:3816 192:5682 193:4710 194:3401 195:2809 196:1187
198:3494 199:3449 200:5311 201:1564 202:7777 203:8196
204:4014 205:2306 206:2412 207:3041 208:3864 209:3428
210:2491 211:1266 212:1728 213:1664 214:638 215:69
216:4696 217:1527 218:491 219:370 220:1139 221:386
222:313 223:1
End of report