Routing Table Report 08:00 +10GMT Sat 04 Jun, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 353642
Prefixes after maximum aggregation: 160518
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 178197
Total ASes present in the Internet Routing Table: 36487
Prefixes per ASN: 9.69
Origin-only ASes present in the Internet Routing Table: 31518
Origin ASes announcing only one prefix: 15165
Transit ASes present in the Internet Routing Table: 4969
Transit-only ASes present in the Internet Routing Table: 116
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 29
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 2141
Unregistered ASNs in the Routing Table: 486
Number of 32-bit ASNs allocated by the RIRs: 1425
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2582
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 166
Number of addresses announced to Internet: 2467163392
Equivalent to 147 /8s, 13 /16s and 237 /24s
Percentage of available address space announced: 66.6
Percentage of allocated address space announced: 66.6
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.0
Total number of prefixes smaller than registry allocations: 145973
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 84892
Total APNIC prefixes after maximum aggregation: 28788
APNIC Deaggregation factor: 2.95
Prefixes being announced from the APNIC address blocks: 82197
Unique aggregates announced from the APNIC address blocks: 36742
APNIC Region origin ASes present in the Internet Routing Table: 4420
APNIC Prefixes per ASN: 18.60
APNIC Region origin ASes announcing only one prefix: 1262
APNIC Region transit ASes present in the Internet Routing Table: 672
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 618052352
Equivalent to 36 /8s, 214 /16s and 187 /24s
Percentage of available APNIC address space announced: 78.4
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: 139288
Total ARIN prefixes after maximum aggregation: 70981
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 111703
Unique aggregates announced from the ARIN address blocks: 46231
ARIN Region origin ASes present in the Internet Routing Table: 14336
ARIN Prefixes per ASN: 7.79
ARIN Region origin ASes announcing only one prefix: 5486
ARIN Region transit ASes present in the Internet Routing Table: 1439
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 801984768
Equivalent to 47 /8s, 205 /16s and 81 /24s
Percentage of available ARIN address space announced: 63.7
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: 85628
Total RIPE prefixes after maximum aggregation: 48485
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 79035
Unique aggregates announced from the RIPE address blocks: 52057
RIPE Region origin ASes present in the Internet Routing Table: 15662
RIPE Prefixes per ASN: 5.05
RIPE Region origin ASes announcing only one prefix: 7841
RIPE Region transit ASes present in the Internet Routing Table: 2439
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 27
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 475147776
Equivalent to 28 /8s, 82 /16s and 46 /24s
Percentage of available RIPE address space announced: 76.5
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: 32353
Total LACNIC prefixes after maximum aggregation: 7401
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 31794
Unique aggregates announced from the LACNIC address blocks: 16921
LACNIC Region origin ASes present in the Internet Routing Table: 1444
LACNIC Prefixes per ASN: 22.02
LACNIC Region origin ASes announcing only one prefix: 432
LACNIC Region transit ASes present in the Internet Routing Table: 250
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 29
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 84638720
Equivalent to 5 /8s, 11 /16s and 124 /24s
Percentage of available LACNIC address space announced: 56.1
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: 8181
Total AfriNIC prefixes after maximum aggregation: 1967
AfriNIC Deaggregation factor: 4.16
Prefixes being announced from the AfriNIC address blocks: 6306
Unique aggregates announced from the AfriNIC address blocks: 1924
AfriNIC Region origin ASes present in the Internet Routing Table: 459
AfriNIC Prefixes per ASN: 13.74
AfriNIC Region origin ASes announcing only one prefix: 144
AfriNIC Region transit ASes present in the Internet Routing Table: 102
Average AfriNIC Region AS path length visible: 3.5
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 23590400
Equivalent to 1 /8s, 103 /16s and 246 /24s
Percentage of available AfriNIC address space announced: 35.2
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 1901 9492 618 Korea Telecom (KIX)
17974 1541 441 38 PT Telekomunikasi Indonesia
7545 1536 301 86 TPG Internet Pty Ltd
4755 1467 374 163 TATA Communications formerly
24560 1155 337 187 Bharti Airtel Ltd., Telemedia
7552 1141 1064 7 Vietel Corporation
9583 1082 80 510 Sify Limited
4808 959 2015 278 CNCGROUP IP network China169
9829 957 843 82 National Internet Backbone
18101 933 116 140 Reliance Infocom Ltd Internet
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 3641 3822 257 BellSouth.net Inc.
4323 1973 1097 401 tw telecom holdings, inc.
18566 1874 355 268 Covad Communications Co.
1785 1793 681 122 PaeTec Communications, Inc.
6478 1716 318 45 AT&T Services, Inc.
20115 1535 1540 633 Charter Communications
19262 1492 4936 307 Verizon Online LLC
7018 1380 7102 904 AT&T Services, Inc.
22773 1337 2897 88 Cox Communications Inc.
2386 1269 536 911 AT&T Data Communications Serv
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 539 326 30 Goldenlines main autonomous s
34984 517 106 179 BILISIM TELEKOM
6830 516 1780 320 UPC Broadband
3292 461 2078 396 TDC Data Networks
20940 458 134 350 Akamai Technologies European
29049 451 33 48 AzerSat LLC.
8866 445 134 26 Bulgarian Telecommunication C
12479 431 593 7 France Telecom Espana SA
3320 424 8152 369 Deutsche Telekom AG
8551 407 356 39 Bezeq International
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 1512 278 157 Types of queries are: POCs, o
28573 1305 992 86 Types of queries are: POCs, o
8151 1247 2707 357 Uninet S.A. de C.V.
7303 937 504 142 Telecom Argentina S.A.
6503 725 354 74 Axtel, S.A.B. de C.V.
14420 675 54 89 CORPORACION NACIONAL DE TELEC
22047 565 310 15 Types of queries are: POCs, o
3816 528 231 92 Types of queries are: POCs, o
7738 516 986 31 Telecomunicacoes da Bahia S.A
13489 516 262 122 EPM Telecomunicaciones S.A. E
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 831 445 11 TEDATA
24863 718 147 35 LINKdotNET AS number
15475 544 90 8 Nile Online
36992 295 399 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 217 12 11 Starcomms Nigeria Limited
24835 210 78 10 RAYA Telecom - Egypt
29571 192 17 11 Ci Telecom Autonomous system
11380 181 125 57 INTERNETOFFICEPARKS
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 3641 3822 257 BellSouth.net Inc.
23456 2582 642 1401 32-bit ASN transition
4323 1973 1097 401 tw telecom holdings, inc.
4766 1901 9492 618 Korea Telecom (KIX)
18566 1874 355 268 Covad Communications Co.
1785 1793 681 122 PaeTec Communications, Inc.
6478 1716 318 45 AT&T Services, Inc.
17974 1541 441 38 PT Telekomunikasi Indonesia
7545 1536 301 86 TPG Internet Pty Ltd
20115 1535 1540 633 Charter Communications
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
1785 1793 1671 PaeTec Communications, Inc.
6478 1716 1671 AT&T Services, Inc.
18566 1874 1606 Covad Communications Co.
4323 1973 1572 tw telecom holdings, inc.
17974 1541 1503 PT Telekomunikasi Indonesia
7545 1536 1450 TPG Internet Pty Ltd
10620 1512 1355 Types of queries are: POCs, o
4755 1467 1304 TATA Communications formerly
4766 1901 1283 Korea Telecom (KIX)
22773 1337 1249 Cox Communications Inc.
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 *
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
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.
21861 UNALLOCATED 12.37.59.0/24 7018 AT&T Services, Inc.
26973 UNALLOCATED 12.39.152.0/24 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 65535 Internet Assigned Numbers Aut
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
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
27.0.128.0/17 7514 Media EXchange, Inc.
41.190.32.0/23 31856 CABSAS
41.190.34.0/23 31856 CABSAS
41.190.36.0/23 31856 CABSAS
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 /8:21 /9:12 /10:28 /11:81 /12:228
/13:461 /14:797 /15:1395 /16:11882 /17:5817 /18:9656
/19:19420 /20:25706 /21:25892 /22:33977 /23:32800 /24:184971
/25:13 /26:17 /27:25 /28:160 /29:98 /30:54
/31:0 /32:131
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2242 3641 BellSouth.net Inc.
18566 1837 1874 Covad Communications Co.
6478 1670 1716 AT&T Services, Inc.
10620 1402 1512 Types of queries are: POCs, o
23456 1263 2582 32-bit ASN transition
11492 1107 1153 CABLE ONE, INC.
7011 1062 1161 Frontier Communications of Am
1785 1050 1793 PaeTec Communications, Inc.
4323 884 1973 tw telecom holdings, inc.
22773 852 1337 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:279 2:47 4:16 5:1 6:3 8:337
12:1978 13:1 14:457 15:15 16:3 17:8
20:10 23:6 24:1611 27:750 31:419 32:55
33:4 34:2 37:1 38:734 40:102 41:2521
42:6 44:3 46:933 47:3 49:200 50:435
52:13 54:2 55:3 56:2 57:28 58:796
59:474 60:385 61:1023 62:1034 63:1931 64:3918
65:2285 66:4137 67:1867 68:1084 69:2985 70:701
71:352 72:1883 73:1 74:2348 75:305 76:340
77:872 78:700 79:470 80:1089 81:838 82:498
83:443 84:678 85:1071 86:590 87:763 88:332
89:1528 90:203 91:3809 92:524 93:1049 94:1291
95:817 96:501 97:250 98:860 99:35 101:54
103:46 106:1 107:7 108:85 109:956 110:600
111:702 112:296 113:397 114:536 115:660 116:937
117:690 118:790 119:1139 120:309 121:648 122:1621
123:945 124:1262 125:1212 128:209 129:169 130:158
131:568 132:101 133:19 134:205 135:48 136:212
137:142 138:299 139:107 140:463 141:238 142:388
143:404 144:483 145:54 146:442 147:210 148:578
149:243 150:163 151:184 152:326 153:179 154:2
155:397 156:192 157:323 158:138 159:373 160:316
161:199 162:280 163:154 164:501 165:352 166:515
167:426 168:723 169:153 170:797 171:77 172:1
173:1554 174:551 175:356 176:130 177:144 178:993
180:850 181:18 182:447 183:212 184:294 185:1
186:1214 187:769 188:849 189:888 190:4841 192:5797
193:4902 194:3490 195:2997 196:1224 197:19 198:3511
199:3889 200:5445 201:1478 202:8054 203:8262 204:4105
205:2284 206:2602 207:2802 208:3965 209:3450 210:2642
211:1389 212:2011 213:1712 214:727 215:71 216:4922
217:1635 218:534 219:362 220:1197 221:474 222:308
223:148
End of report
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