Routing Table Report 08:00 +10GMT Sat 24 Jul, 2010
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 321635
Prefixes after maximum aggregation: 148495
Deaggregation factor: 2.17
Unique aggregates announced to Internet: 159186
Total ASes present in the Internet Routing Table: 34297
Prefixes per ASN: 9.38
Origin-only ASes present in the Internet Routing Table: 29731
Origin ASes announcing only one prefix: 14471
Transit ASes present in the Internet Routing Table: 4566
Transit-only ASes present in the Internet Routing Table: 109
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: 322
Unregistered ASNs in the Routing Table: 113
Number of 32-bit ASNs allocated by the RIRs: 701
Prefixes from 32-bit ASNs in the Routing Table: 856
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 161
Number of addresses announced to Internet: 2563297536
Equivalent to 152 /8s, 200 /16s and 209 /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: 151370
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 75498
Total APNIC prefixes after maximum aggregation: 26120
APNIC Deaggregation factor: 2.89
Prefixes being announced from the APNIC address blocks: 73177
Unique aggregates announced from the APNIC address blocks: 33498
APNIC Region origin ASes present in the Internet Routing Table: 4069
APNIC Prefixes per ASN: 17.98
APNIC Region origin ASes announcing only one prefix: 1148
APNIC Region transit ASes present in the Internet Routing Table: 618
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 532143360
Equivalent to 31 /8s, 183 /16s and 221 /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: 133061
Total ARIN prefixes after maximum aggregation: 68994
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 106395
Unique aggregates announced from the ARIN address blocks: 41995
ARIN Region origin ASes present in the Internet Routing Table: 13747
ARIN Prefixes per ASN: 7.74
ARIN Region origin ASes announcing only one prefix: 5280
ARIN Region transit ASes present in the Internet Routing Table: 1352
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 729811200
Equivalent to 43 /8s, 128 /16s and 9 /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: 75536
Total RIPE prefixes after maximum aggregation: 43451
RIPE Deaggregation factor: 1.74
Prefixes being announced from the RIPE address blocks: 68656
Unique aggregates announced from the RIPE address blocks: 44503
RIPE Region origin ASes present in the Internet Routing Table: 14625
RIPE Prefixes per ASN: 4.69
RIPE Region origin ASes announcing only one prefix: 7515
RIPE Region transit ASes present in the Internet Routing Table: 2224
Average RIPE Region AS path length visible: 3.4
Max RIPE Region AS path length visible: 24
Number of RIPE addresses announced to Internet: 433511424
Equivalent to 25 /8s, 214 /16s and 220 /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: 28765
Total LACNIC prefixes after maximum aggregation: 6918
LACNIC Deaggregation factor: 4.16
Prefixes being announced from the LACNIC address blocks: 27405
Unique aggregates announced from the LACNIC address blocks: 14562
LACNIC Region origin ASes present in the Internet Routing Table: 1300
LACNIC Prefixes per ASN: 21.08
LACNIC Region origin ASes announcing only one prefix: 408
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: 75730688
Equivalent to 4 /8s, 131 /16s and 143 /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: 7255
Total AfriNIC prefixes after maximum aggregation: 1859
AfriNIC Deaggregation factor: 3.90
Prefixes being announced from the AfriNIC address blocks: 5567
Unique aggregates announced from the AfriNIC address blocks: 1621
AfriNIC Region origin ASes present in the Internet Routing Table: 378
AfriNIC Prefixes per ASN: 14.73
AfriNIC Region origin ASes announcing only one prefix: 120
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: 19848704
Equivalent to 1 /8s, 46 /16s and 222 /24s
Percentage of available AfriNIC address space announced: 59.2
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 1361 232 104 TPG Internet Pty Ltd
17488 1334 147 128 Hathway IP Over Cable Interne
4755 1326 298 153 TATA Communications formerly
17974 1174 286 55 PT TELEKOMUNIKASI INDONESIA
9583 1002 74 486 Sify Limited
24560 985 304 179 Bharti Airtel Ltd., Telemedia
9829 812 685 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 3889 3718 287 bellsouth.net, inc.
4323 2723 1112 393 Time Warner Telecom
19262 1943 4567 278 Verizon Global Networks
1785 1780 698 129 PaeTec Communications, Inc.
20115 1488 1522 654 Charter Communications
7018 1474 5734 957 AT&T WorldNet Services
2386 1283 553 913 AT&T Data Communications Serv
6478 1262 253 185 AT&T Worldnet Services
22773 1171 2858 61 Cox Communications, Inc.
3356 1158 10878 402 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 442 111 206 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 1438 3047 242 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 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 1107 445 10 TEDATA
24863 722 146 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 165 424 98 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 3889 3718 287 bellsouth.net, inc.
4323 2723 1112 393 Time Warner Telecom
19262 1943 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 1474 5734 957 AT&T WorldNet Services
8151 1438 3047 242 UniNet S.A. de C.V.
7545 1361 232 104 TPG Internet Pty Ltd
17488 1334 147 128 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 2723 2330 Time Warner Telecom
19262 1943 1665 Verizon Global Networks
1785 1780 1651 PaeTec Communications, Inc.
7545 1361 1257 TPG Internet Pty Ltd
4766 1694 1210 Korea Telecom (KIX)
17488 1334 1206 Hathway IP Over Cable Interne
8151 1438 1196 UniNet S.A. de C.V.
4755 1326 1173 TATA Communications formerly
17974 1174 1119 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 /11:68 /12:199
/13:407 /14:709 /15:1295 /16:11157 /17:5333 /18:9144
/19:18621 /20:23080 /21:23021 /22:29883 /23:29507 /24:168751
/25:9 /26:16 /27:27 /28:140 /29:78 /30:29
/31:0 /32:88
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2490 3889 bellsouth.net, inc.
4323 1393 2723 Time Warner Telecom
4766 1326 1694 Korea Telecom (KIX)
1785 1242 1780 PaeTec Communications, Inc.
17488 1078 1334 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 1943 Verizon Global Networks
Complete listing at http://thyme.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:10 2:2 4:13 8:290 12:2015 13:7
14:1 15:21 16:3 17:8 20:6 24:1430
27:249 31:1 32:47 33:12 38:686 40:98
41:2430 44:3 46:10 47:17 52:9 55:5
56:2 57:36 58:671 59:501 60:460 61:987
62:1037 63:1967 64:3665 65:2341 66:4035 67:1823
68:1093 69:2704 70:708 71:446 72:1945 73:2
74:2258 75:250 76:318 77:900 78:621 79:433
80:996 81:767 82:499 83:439 84:672 85:1045
86:457 87:701 88:340 89:1557 90:95 91:2903
92:506 93:991 94:1406 95:654 96:523 97:211
98:613 99:33 108:105 109:578 110:389 111:526
112:284 113:325 114:437 115:569 116:1077 117:646
118:481 119:880 120:134 121:704 122:1507 123:944
124:1104 125:1311 128:177 129:191 130:162 131:547
132:245 133:16 134:188 135:45 136:240 137:142
138:264 139:101 140:458 141:196 142:327 143:370
144:458 145:50 146:446 147:164 148:645 149:299
150:155 151:230 152:259 153:168 154:1 155:356
156:156 157:296 158:110 159:355 160:316 161:177
162:254 163:164 164:406 165:363 166:460 167:413
168:642 169:155 170:709 171:59 172:2 173:951
174:501 175:151 176:1 178:316 180:464 182:144
183:240 184:115 186:519 187:401 188:1012 189:761
190:3811 192:5679 193:4712 194:3407 195:2812 196:1182
198:3502 199:3446 200:5313 201:1563 202:7784 203:8205
204:4012 205:2306 206:2410 207:3041 208:3866 209:3428
210:2486 211:1266 212:1727 213:1664 214:638 215:69
216:4694 217:1527 218:491 219:373 220:1139 221:386
222:313 223:1
End of report
