Routing Table Report 08:00 +10GMT Tue 22 Feb, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 342324
Prefixes after maximum aggregation: 155851
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 171558
Total ASes present in the Internet Routing Table: 35759
Prefixes per ASN: 9.57
Origin-only ASes present in the Internet Routing Table: 30938
Origin ASes announcing only one prefix: 14973
Transit ASes present in the Internet Routing Table: 4821
Transit-only ASes present in the Internet Routing Table: 108
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 26
Max AS path prepend of ASN (32374) 19
Prefixes from unregistered ASNs in the Routing Table: 1333
Unregistered ASNs in the Routing Table: 265
Number of 32-bit ASNs allocated by the RIRs: 1137
Prefixes from 32-bit ASNs in the Routing Table: 1739
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 187
Number of addresses announced to Internet: 2414731264
Equivalent to 143 /8s, 237 /16s and 224 /24s
Percentage of available address space announced: 65.1
Percentage of allocated address space announced: 65.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 88.0
Total number of prefixes smaller than registry allocations: 140291
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 82145
Total APNIC prefixes after maximum aggregation: 28059
APNIC Deaggregation factor: 2.93
Prefixes being announced from the APNIC address blocks: 79749
Unique aggregates announced from the APNIC address blocks: 35836
APNIC Region origin ASes present in the Internet Routing Table: 4283
APNIC Prefixes per ASN: 18.62
APNIC Region origin ASes announcing only one prefix: 1218
APNIC Region transit ASes present in the Internet Routing Table: 658
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 26
Number of APNIC addresses announced to Internet: 590127872
Equivalent to 35 /8s, 44 /16s and 163 /24s
Percentage of available APNIC address space announced: 74.8
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, 39/8, 42/8, 43/8,
49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8,
106/8, 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: 136829
Total ARIN prefixes after maximum aggregation: 70039
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 109679
Unique aggregates announced from the ARIN address blocks: 44983
ARIN Region origin ASes present in the Internet Routing Table: 14131
ARIN Prefixes per ASN: 7.76
ARIN Region origin ASes announcing only one prefix: 5390
ARIN Region transit ASes present in the Internet Routing Table: 1387
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 787435776
Equivalent to 46 /8s, 239 /16s and 81 /24s
Percentage of available ARIN address space announced: 62.6
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, 23/8, 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,
53/8, 54/8, 55/8, 56/8, 57/8, 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, 100/8, 104/8, 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: 82475
Total RIPE prefixes after maximum aggregation: 46593
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 75836
Unique aggregates announced from the RIPE address blocks: 49217
RIPE Region origin ASes present in the Internet Routing Table: 15323
RIPE Prefixes per ASN: 4.95
RIPE Region origin ASes announcing only one prefix: 7788
RIPE Region transit ASes present in the Internet Routing Table: 2368
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 460421888
Equivalent to 27 /8s, 113 /16s and 123 /24s
Percentage of available RIPE address space announced: 74.2
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, 56320-58367
196608-198655
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 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, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 31222
Total LACNIC prefixes after maximum aggregation: 7278
LACNIC Deaggregation factor: 4.29
Prefixes being announced from the LACNIC address blocks: 30147
Unique aggregates announced from the LACNIC address blocks: 15933
LACNIC Region origin ASes present in the Internet Routing Table: 1419
LACNIC Prefixes per ASN: 21.25
LACNIC Region origin ASes announcing only one prefix: 443
LACNIC Region transit ASes present in the Internet Routing Table: 251
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 80791296
Equivalent to 4 /8s, 208 /16s and 199 /24s
Percentage of available LACNIC address space announced: 53.5
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 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: 7276
Total AfriNIC prefixes after maximum aggregation: 1813
AfriNIC Deaggregation factor: 4.01
Prefixes being announced from the AfriNIC address blocks: 5696
Unique aggregates announced from the AfriNIC address blocks: 1818
AfriNIC Region origin ASes present in the Internet Routing Table: 435
AfriNIC Prefixes per ASN: 13.09
AfriNIC Region origin ASes announcing only one prefix: 134
AfriNIC Region transit ASes present in the Internet Routing Table: 95
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 21883392
Equivalent to 1 /8s, 77 /16s and 234 /24s
Percentage of available AfriNIC address space announced: 32.6
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1841 9491 582 Korea Telecom (KIX)
7545 1560 301 82 TPG Internet Pty Ltd
4755 1419 638 166 TATA Communications formerly
17974 1407 467 30 PT Telekomunikasi Indonesia
24560 1112 323 181 Bharti Airtel Ltd., Telemedia
9583 1043 76 487 Sify Limited
17488 950 162 103 Hathway IP Over Cable Interne
4808 939 2034 271 CNCGROUP IP network China169
18101 931 117 141 Reliance Infocom Ltd Internet
9829 894 762 45 National Internet Backbone
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 3695 3855 262 BellSouth.net Inc.
4323 2615 1125 406 tw telecom holdings, inc.
19262 1843 4955 283 Verizon Online LLC
1785 1787 697 131 PaeTec Communications, Inc.
20115 1526 1534 646 Charter Communications
6478 1518 296 79 AT&T Services, Inc.
18566 1432 319 155 Covad Communications Co.
7018 1383 6708 897 AT&T Services, Inc.
2386 1298 554 935 AT&T Data Communications Serv
11492 1280 236 73 CABLE ONE, 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 542 328 31 Goldenlines main autonomous s
6830 512 1780 318 UPC Broadband
9198 468 267 15 Kazakhtelecom Data Network Ad
34984 463 98 143 BILISIM TELEKOM
3292 447 1996 388 TDC Data Networks
8866 436 133 23 Bulgarian Telecommunication C
20940 413 98 319 Akamai Technologies European
3320 409 7620 356 Deutsche Telekom AG
8551 405 355 38 Bezeq International
702 401 1803 314 >>UNKNOWN<<
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 1374 255 166 Types of queries are: POCs, o
28573 1214 961 82 Types of queries are: POCs, o
8151 1211 2663 354 Uninet S.A. de C.V.
6503 1156 354 74 Axtel, S.A.B. de C.V.
7303 880 463 131 Telecom Argentina S.A.
14420 638 57 92 CORPORACION NACIONAL DE TELEC
22047 545 310 15 Types of queries are: POCs, o
3816 511 221 96 Types of queries are: POCs, o
13489 486 209 121 EPM Telecomunicaciones S.A. E
7738 478 922 30 Telecomunicacoes da Bahia 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
24863 673 147 37 LINKdotNET AS number
8452 650 445 11 TEDATA
15475 494 90 12 Nile Online
36992 302 271 14 Etisalat MISR
3741 263 987 225 The Internet Solution
24835 220 78 10 RAYA Telecom - Egypt
6713 205 199 12 Itissalat Al-MAGHRIB
33776 201 12 15 Starcomms Nigeria Limited
29571 192 17 11 Ci Telecom Autonomous system
16637 155 439 88 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 3695 3855 262 BellSouth.net Inc.
4323 2615 1125 406 tw telecom holdings, inc.
19262 1843 4955 283 Verizon Online LLC
4766 1841 9491 582 Korea Telecom (KIX)
1785 1787 697 131 PaeTec Communications, Inc.
23456 1739 434 980 32-bit ASN transition
7545 1560 301 82 TPG Internet Pty Ltd
20115 1526 1534 646 Charter Communications
6478 1518 296 79 AT&T Services, Inc.
18566 1432 319 155 Covad Communications Co.
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 2615 2209 tw telecom holdings, inc.
1785 1787 1656 PaeTec Communications, Inc.
19262 1843 1560 Verizon Online LLC
7545 1560 1478 TPG Internet Pty Ltd
6478 1518 1439 AT&T Services, Inc.
17974 1407 1377 PT Telekomunikasi Indonesia
18566 1432 1277 Covad Communications Co.
4766 1841 1259 Korea Telecom (KIX)
4755 1419 1253 TATA Communications formerly
10620 1374 1208 Types of queries are: POCs, o
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 10.0.0.0/8 0 *
16927 UNALLOCATED 12.0.252.0/23 7018 AT&T Services, Inc.
32805 UNALLOCATED 12.1.225.0/24 7018 AT&T Services, Inc.
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T Services, Inc.
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T Services, Inc.
16504 UNALLOCATED 12.18.155.0/24 30170 Optic Fusion
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T Services, Inc.
32567 UNALLOCATED 12.25.107.0/24 4323 tw telecom holdings,
30031 UNALLOCATED 12.27.122.0/24 7018 AT&T Services, Inc.
26095 UNALLOCATED 12.34.8.0/24 7018 AT&T Services, Inc.
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
5.0.0.0/16 12654 RIPE NCC RIS Project
5.1.0.0/21 12654 RIPE NCC RIS Project
5.1.24.0/24 12654 RIPE NCC RIS Project
24.129.192.0/19 7922 Comcast Cable Communications,
31.24.0.0/21 16082 Spitfire Digital Networks Aut
37.0.0.0/16 12654 RIPE NCC RIS Project
37.1.0.0/21 12654 RIPE NCC RIS Project
37.1.24.0/24 12654 RIPE NCC RIS Project
39.0.0.0/8 237 Merit Network Inc.
41.57.192.0/18 22750 BCSNET
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 /8:22 /9:10 /10:26 /11:72 /12:216
/13:445 /14:763 /15:1371 /16:11478 /17:5634 /18:9292
/19:18951 /20:24426 /21:24796 /22:32842 /23:31452 /24:180112
/25:10 /26:17 /27:20 /28:146 /29:88 /30:40
/31:0 /32:95
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2281 3695 BellSouth.net Inc.
6478 1472 1518 AT&T Services, Inc.
18566 1410 1432 Covad Communications Co.
4323 1405 2615 tw telecom holdings, inc.
10620 1265 1374 Types of queries are: POCs, o
11492 1237 1280 CABLE ONE, INC.
7011 1057 1160 Frontier Communications of Am
1785 1054 1787 PaeTec Communications, Inc.
23456 1001 1739 32-bit ASN transition
19262 954 1843 Verizon Online LLC
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:217 2:53 4:13 5:1 8:335 12:2030
13:1 14:385 15:15 16:3 17:8 20:9
23:1 24:1489 27:583 32:56 33:4 34:2
37:1 38:701 40:101 41:2205 44:3 46:643
47:4 49:149 50:93 52:12 55:2 56:2
57:27 58:760 59:473 60:389 61:1014 62:1051
63:1933 64:3811 65:2354 66:4230 67:1782 68:1027
69:2925 70:736 71:405 72:2013 73:1 74:2341
75:292 76:347 77:871 78:705 79:449 80:1060
81:820 82:525 83:480 84:636 85:1046 86:559
87:760 88:355 89:1575 90:156 91:3521 92:491
93:1042 94:1203 95:768 96:449 97:251 98:825
99:33 101:27 107:3 108:88 109:931 110:481
111:696 112:302 113:367 114:478 115:648 116:914
117:674 118:669 119:1013 120:239 121:676 122:1617
123:1055 124:1271 125:1254 128:214 129:150 130:166
131:560 132:102 133:20 134:213 135:49 136:212
137:144 138:293 139:117 140:467 141:203 142:342
143:379 144:484 145:51 146:431 147:201 148:618
149:265 150:152 151:230 152:295 153:179 154:2
155:350 156:173 157:313 158:130 159:373 160:311
161:200 162:274 163:147 164:484 165:336 166:503
167:419 168:737 169:147 170:751 171:69 172:25
173:1322 174:532 175:315 176:1 177:13 178:791
180:800 182:350 183:248 184:212 186:1010 187:804
188:892 189:1068 190:4411 192:5757 193:4790 194:3491
195:2938 196:1194 197:3 198:3494 199:3800 200:5557
201:1572 202:8060 203:8321 204:4022 205:2316 206:2538
207:3005 208:3904 209:3462 210:2592 211:1334 212:1942
213:1732 214:767 215:62 216:4820 217:1635 218:533
219:376 220:1192 221:436 222:309 223:93
End of report
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