Routing Table Report 08:00 +10GMT Sat 31 Jul, 2010
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 322618
Prefixes after maximum aggregation: 148881
Deaggregation factor: 2.17
Unique aggregates announced to Internet: 159692
Total ASes present in the Internet Routing Table: 34351
Prefixes per ASN: 9.39
Origin-only ASes present in the Internet Routing Table: 29775
Origin ASes announcing only one prefix: 14509
Transit ASes present in the Internet Routing Table: 4576
Transit-only ASes present in the Internet Routing Table: 103
Average AS path length visible in the Internet Routing Table: 3.5
Max AS path length visible: 38
Max AS path prepend of ASN (22394) 35
Prefixes from unregistered ASNs in the Routing Table: 327
Unregistered ASNs in the Routing Table: 111
Number of 32-bit ASNs allocated by the RIRs: 716
Prefixes from 32-bit ASNs in the Routing Table: 873
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 163
Number of addresses announced to Internet: 2567947520
Equivalent to 153 /8s, 15 /16s and 197 /24s
Percentage of available address space announced: 69.3
Percentage of allocated address space announced: 74.7
Percentage of available address space allocated: 92.8
Percentage of address space in use by end-sites: 84.0
Total number of prefixes smaller than registry allocations: 151807
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 75751
Total APNIC prefixes after maximum aggregation: 26208
APNIC Deaggregation factor: 2.89
Prefixes being announced from the APNIC address blocks: 73457
Unique aggregates announced from the APNIC address blocks: 33601
APNIC Region origin ASes present in the Internet Routing Table: 4093
APNIC Prefixes per ASN: 17.95
APNIC Region origin ASes announcing only one prefix: 1165
APNIC Region transit ASes present in the Internet Routing Table: 617
Average APNIC Region AS path length visible: 3.9
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 536612864
Equivalent to 31 /8s, 252 /16s and 16 /24s
Percentage of available APNIC address space announced: 80.0
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: 133323
Total ARIN prefixes after maximum aggregation: 69148
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 106694
Unique aggregates announced from the ARIN address blocks: 42134
ARIN Region origin ASes present in the Internet Routing Table: 13756
ARIN Prefixes per ASN: 7.76
ARIN Region origin ASes announcing only one prefix: 5292
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: 38
Number of ARIN addresses announced to Internet: 730061312
Equivalent to 43 /8s, 131 /16s and 218 /24s
Percentage of available ARIN address space announced: 62.2
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: 75737
Total RIPE prefixes after maximum aggregation: 43561
RIPE Deaggregation factor: 1.74
Prefixes being announced from the RIPE address blocks: 68810
Unique aggregates announced from the RIPE address blocks: 44711
RIPE Region origin ASes present in the Internet Routing Table: 14643
RIPE Prefixes per ASN: 4.70
RIPE Region origin ASes announcing only one prefix: 7528
RIPE Region transit ASes present in the Internet Routing Table: 2227
Average RIPE Region AS path length visible: 3.4
Max RIPE Region AS path length visible: 24
Number of RIPE addresses announced to Internet: 433755392
Equivalent to 25 /8s, 218 /16s and 149 /24s
Percentage of available RIPE address space announced: 76.0
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: 28902
Total LACNIC prefixes after maximum aggregation: 6922
LACNIC Deaggregation factor: 4.18
Prefixes being announced from the LACNIC address blocks: 27539
Unique aggregates announced from the LACNIC address blocks: 14631
LACNIC Region origin ASes present in the Internet Routing Table: 1306
LACNIC Prefixes per ASN: 21.09
LACNIC Region origin ASes announcing only one prefix: 405
LACNIC Region transit ASes present in the Internet Routing Table: 228
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 26
Number of LACNIC addresses announced to Internet: 75856384
Equivalent to 4 /8s, 133 /16s and 122 /24s
Percentage of available LACNIC address space announced: 56.5
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: 7356
Total AfriNIC prefixes after maximum aggregation: 1859
AfriNIC Deaggregation factor: 3.96
Prefixes being announced from the AfriNIC address blocks: 5662
Unique aggregates announced from the AfriNIC address blocks: 1586
AfriNIC Region origin ASes present in the Internet Routing Table: 381
AfriNIC Prefixes per ASN: 14.86
AfriNIC Region origin ASes announcing only one prefix: 119
AfriNIC Region transit ASes present in the Internet Routing Table: 88
Average AfriNIC Region AS path length visible: 3.3
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 19798016
Equivalent to 1 /8s, 46 /16s and 24 /24s
Percentage of available AfriNIC address space announced: 59.0
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 1371 234 87 TPG Internet Pty Ltd
17488 1343 151 126 Hathway IP Over Cable Interne
4755 1329 298 156 TATA Communications formerly
17974 1181 287 60 PT TELEKOMUNIKASI INDONESIA
9583 1003 74 486 Sify Limited
24560 994 305 183 Bharti Airtel Ltd., Telemedia
9829 817 686 33 BSNL National Internet Backbo
4808 766 1481 196 CNCGROUP IP network: China169
4134 754 21996 412 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 3880 3716 283 bellsouth.net, inc.
4323 2729 1116 395 Time Warner Telecom
19262 1948 4583 279 Verizon Global Networks
1785 1782 698 129 PaeTec Communications, Inc.
20115 1489 1524 651 Charter Communications
7018 1475 5734 959 AT&T WorldNet Services
2386 1282 539 912 AT&T Data Communications Serv
6478 1266 253 175 AT&T Worldnet Services
22773 1173 2858 61 Cox Communications, Inc.
11492 1160 209 90 Cable One
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 654 56 6 United Telecom of Georgia
9116 532 328 33 Goldenlines main autonomous s
9198 499 202 13 Kazakhtelecom Data Network Ad
3292 449 2026 390 TDC Tele Danmark
30890 444 111 206 Evolva Telecom
702 412 1853 324 UUNET - Commercial IP service
8551 403 355 38 Bezeq International
8866 403 117 18 Bulgarian Telecommunication C
3320 375 7329 327 Deutsche Telekom AG
3301 372 1414 327 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 1439 3048 240 UniNet S.A. de C.V.
10620 1077 240 150 TVCABLE BOGOTA
28573 999 813 110 NET Servicos de Comunicao S.A
7303 751 395 92 Telecom Argentina Stet-France
6503 709 178 222 AVANTEL, S.A.
22047 555 310 15 VTR PUNTO NET S.A.
14420 537 34 74 ANDINATEL S.A.
3816 492 210 90 Empresa Nacional de Telecomun
7738 477 922 30 Telecomunicacoes da Bahia S.A
11172 445 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 1176 445 10 TEDATA
24863 722 146 36 LINKdotNET AS number
36992 654 279 185 Etisalat MISR
3741 270 898 232 The Internet Solution
33776 220 12 12 Starcomms Nigeria Limited
2018 213 277 64 Tertiary Education Network
6713 195 186 16 Itissalat Al-MAGHRIB
29571 191 19 10 Ci Telecom Autonomous system
24835 189 78 9 RAYA Telecom - Egypt
16637 146 441 100 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 3880 3716 283 bellsouth.net, inc.
4323 2729 1116 395 Time Warner Telecom
19262 1948 4583 279 Verizon Global Networks
1785 1782 698 129 PaeTec Communications, Inc.
4766 1694 8409 484 Korea Telecom (KIX)
20115 1489 1524 651 Charter Communications
7018 1475 5734 959 AT&T WorldNet Services
8151 1439 3048 240 UniNet S.A. de C.V.
7545 1371 234 87 TPG Internet Pty Ltd
17488 1343 151 126 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 2729 2334 Time Warner Telecom
19262 1948 1669 Verizon Global Networks
1785 1782 1653 PaeTec Communications, Inc.
7545 1371 1284 TPG Internet Pty Ltd
17488 1343 1217 Hathway IP Over Cable Interne
4766 1694 1210 Korea Telecom (KIX)
8151 1439 1199 UniNet S.A. de C.V.
4755 1329 1173 TATA Communications formerly
8452 1176 1166 TEDATA
17974 1181 1121 PT TELEKOMUNIKASI INDONESIA
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 /12:199
/13:409 /14:710 /15:1296 /16:11152 /17:5375 /18:9166
/19:18615 /20:23209 /21:23055 /22:30007 /23:29648 /24:169238
/25:10 /26:17 /27:28 /28:145 /29:79 /30:30
/31:0 /32:90
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2484 3880 bellsouth.net, inc.
4323 1395 2729 Time Warner Telecom
4766 1326 1694 Korea Telecom (KIX)
1785 1244 1782 PaeTec Communications, Inc.
17488 1085 1343 Hathway IP Over Cable Interne
11492 1069 1160 Cable One
8452 1065 1176 TEDATA
18566 1040 1059 Covad Communications
10620 992 1077 TVCABLE BOGOTA
19262 913 1948 Verizon Global Networks
Complete listing at http://thyme.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:37 2:2 4:13 8:293 12:2015 13:7
14:1 15:21 16:3 17:8 20:6 24:1429
27:267 31:1 32:57 33:12 38:684 40:98
41:2485 44:3 46:18 47:16 52:9 55:6
56:2 57:36 58:680 59:505 60:460 61:987
62:1040 63:1963 64:3684 65:2336 66:4044 67:1828
68:1095 69:2704 70:712 71:444 72:1942 73:2
74:2272 75:254 76:324 77:901 78:618 79:428
80:997 81:779 82:497 83:450 84:671 85:1050
86:467 87:700 88:332 89:1558 90:96 91:2901
92:507 93:1008 94:1411 95:664 96:524 97:209
98:617 99:33 100:1 108:105 109:587 110:434
111:523 112:265 113:306 114:434 115:569 116:1052
117:645 118:484 119:883 120:134 121:701 122:1517
123:949 124:1104 125:1301 128:175 129:157 130:163
131:554 132:245 133:16 134:188 135:45 136:238
137:132 138:267 139:101 140:456 141:197 142:325
143:365 144:462 145:52 146:442 147:168 148:652
149:298 150:154 151:228 152:280 153:168 154:1
155:355 156:157 157:296 158:110 159:358 160:314
161:175 162:254 163:163 164:410 165:364 166:461
167:413 168:641 169:155 170:711 171:59 172:2
173:958 174:505 175:160 176:1 178:331 180:473
182:149 183:242 184:130 186:530 187:408 188:1041
189:772 190:3842 192:5689 193:4711 194:3401 195:2822
196:1180 198:3504 199:3463 200:5329 201:1574 202:7801
203:8203 204:3986 205:2377 206:2409 207:3005 208:3874
209:3432 210:2502 211:1283 212:1727 213:1663 214:641
215:69 216:4679 217:1532 218:491 219:373 220:1139
221:383 222:309 223:1
End of report