Routing Table Report 08:00 +10GMT Tue 11 Oct, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 369778
Prefixes after maximum aggregation: 167148
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 185415
Total ASes present in the Internet Routing Table: 37348
Prefixes per ASN: 9.90
Origin-only ASes present in the Internet Routing Table: 32233
Origin ASes announcing only one prefix: 15492
Transit ASes present in the Internet Routing Table: 5115
Transit-only ASes present in the Internet Routing Table: 123
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 25
Max AS path prepend of ASN (51310) 23
Prefixes from unregistered ASNs in the Routing Table: 2388
Unregistered ASNs in the Routing Table: 907
Number of 32-bit ASNs allocated by the RIRs: 1838
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3387
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 91
Number of addresses announced to Internet: 2500265728
Equivalent to 149 /8s, 7 /16s and 7 /24s
Percentage of available address space announced: 67.5
Percentage of allocated address space announced: 67.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.5
Total number of prefixes smaller than registry allocations: 153445
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89228
Total APNIC prefixes after maximum aggregation: 29559
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 86643
Unique aggregates announced from the APNIC address blocks: 37952
APNIC Region origin ASes present in the Internet Routing Table: 4525
APNIC Prefixes per ASN: 19.15
APNIC Region origin ASes announcing only one prefix: 1266
APNIC Region transit ASes present in the Internet Routing Table: 683
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: 627758080
Equivalent to 37 /8s, 106 /16s and 212 /24s
Percentage of available APNIC address space announced: 79.6
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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: 143061
Total ARIN prefixes after maximum aggregation: 73615
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 115474
Unique aggregates announced from the ARIN address blocks: 48169
ARIN Region origin ASes present in the Internet Routing Table: 14643
ARIN Prefixes per ASN: 7.89
ARIN Region origin ASes announcing only one prefix: 5653
ARIN Region transit ASes present in the Internet Routing Table: 1500
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: 804571648
Equivalent to 47 /8s, 244 /16s and 202 /24s
Percentage of available ARIN address space announced: 63.9
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: 90649
Total RIPE prefixes after maximum aggregation: 50476
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 83292
Unique aggregates announced from the RIPE address blocks: 54260
RIPE Region origin ASes present in the Internet Routing Table: 16004
RIPE Prefixes per ASN: 5.20
RIPE Region origin ASes announcing only one prefix: 7965
RIPE Region transit ASes present in the Internet Routing Table: 2494
Average RIPE Region AS path length visible: 3.4
Max RIPE Region AS path length visible: 25
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 490610176
Equivalent to 29 /8s, 62 /16s and 30 /24s
Percentage of available RIPE address space announced: 79.0
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, 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: 34482
Total LACNIC prefixes after maximum aggregation: 7736
LACNIC Deaggregation factor: 4.46
Prefixes being announced from the LACNIC address blocks: 33980
Unique aggregates announced from the LACNIC address blocks: 17937
LACNIC Region origin ASes present in the Internet Routing Table: 1519
LACNIC Prefixes per ASN: 22.37
LACNIC Region origin ASes announcing only one prefix: 452
LACNIC Region transit ASes present in the Internet Routing Table: 264
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 90627328
Equivalent to 5 /8s, 102 /16s and 221 /24s
Percentage of available LACNIC address space announced: 60.0
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: 8269
Total AfriNIC prefixes after maximum aggregation: 2004
AfriNIC Deaggregation factor: 4.13
Prefixes being announced from the AfriNIC address blocks: 6360
Unique aggregates announced from the AfriNIC address blocks: 1962
AfriNIC Region origin ASes present in the Internet Routing Table: 487
AfriNIC Prefixes per ASN: 13.06
AfriNIC Region origin ASes announcing only one prefix: 156
AfriNIC Region transit ASes present in the Internet Routing Table: 108
Average AfriNIC Region AS path length visible: 3.3
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: 27807232
Equivalent to 1 /8s, 168 /16s and 78 /24s
Percentage of available AfriNIC address space announced: 41.4
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 1928 11039 649 Korea Telecom (KIX)
17974 1657 512 38 PT Telekomunikasi Indonesia
7545 1608 303 86 TPG Internet Pty Ltd
4755 1529 379 173 TATA Communications formerly
9829 1165 989 28 National Internet Backbone
24560 1150 341 231 Bharti Airtel Ltd., Telemedia
9583 1044 77 524 Sify Limited
7552 990 1062 11 Vietel Corporation
4808 965 2004 272 CNCGROUP IP network China169
18101 954 165 143 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 3553 3815 222 BellSouth.net Inc.
7029 1934 1042 210 Windstream Communications Inc
18566 1913 365 237 Covad Communications Co.
1785 1835 680 121 PaeTec Communications, Inc.
4323 1630 1099 393 tw telecom holdings, inc.
20115 1590 1541 635 Charter Communications
22773 1458 2907 100 Cox Communications Inc.
19262 1394 4728 400 Verizon Online LLC
30036 1384 250 675 Mediacom Communications Corp
7018 1348 7083 884 AT&T Services, 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
8402 1450 352 13 Corbina telecom
6830 634 1890 410 UPC Broadband
34984 579 108 179 BILISIM TELEKOM
20940 548 185 422 Akamai Technologies European
9116 540 326 31 Goldenlines main autonomous s
3320 503 8169 385 Deutsche Telekom AG
3292 484 2082 410 TDC Data Networks
12479 481 593 7 France Telecom Espana SA
8866 458 133 26 Bulgarian Telecommunication C
29049 424 31 55 AzerSat LLC.
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 1680 310 154 Types of queries are: POCs, o
28573 1359 1014 68 Types of queries are: POCs, o
8151 1270 2822 341 Uninet S.A. de C.V.
7303 1164 683 175 Telecom Argentina S.A.
14420 636 59 87 CORPORACION NACIONAL DE TELEC
22047 579 322 17 Types of queries are: POCs, o
27947 566 72 79 Telconet S.A
6503 560 434 69 Axtel, S.A.B. de C.V.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
3816 538 233 95 Types of queries are: POCs, o
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 766 146 33 LINKdotNET AS number
8452 506 445 11 TEDATA
15475 441 74 8 Nile Online
36992 297 415 19 Etisalat MISR
3741 278 938 230 The Internet Solution
15706 244 32 6 Sudatel Internet Exchange Aut
6713 242 519 14 Itissalat Al-MAGHRIB
33776 207 13 14 Starcomms Nigeria Limited
12258 199 28 59 Vodacom Internet Company
29571 192 17 11 Ci Telecom Autonomous system
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 3553 3815 222 BellSouth.net Inc.
7029 1934 1042 210 Windstream Communications Inc
4766 1928 11039 649 Korea Telecom (KIX)
18566 1913 365 237 Covad Communications Co.
1785 1835 680 121 PaeTec Communications, Inc.
10620 1680 310 154 Types of queries are: POCs, o
17974 1657 512 38 PT Telekomunikasi Indonesia
4323 1630 1099 393 tw telecom holdings, inc.
7545 1608 303 86 TPG Internet Pty Ltd
20115 1590 1541 635 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
7029 1934 1724 Windstream Communications Inc
1785 1835 1714 PaeTec Communications, Inc.
18566 1913 1676 Covad Communications Co.
17974 1657 1619 PT Telekomunikasi Indonesia
10620 1680 1526 Types of queries are: POCs, o
7545 1608 1522 TPG Internet Pty Ltd
8402 1450 1437 Corbina telecom
22773 1458 1358 Cox Communications Inc.
4755 1529 1356 TATA Communications formerly
28573 1359 1291 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 *
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.
25639 UNALLOCATED 12.41.169.0/24 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
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
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV
62.61.221.0/24 24974 Tachyon Europe BV
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 /8:20 /9:12 /10:27 /11:81 /12:236
/13:464 /14:804 /15:1420 /16:11955 /17:5987 /18:9989
/19:19993 /20:27136 /21:27135 /22:36380 /23:34531 /24:193080
/25:12 /26:20 /27:24 /28:155 /29:128 /30:59
/31:0 /32:130
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2190 3553 BellSouth.net Inc.
18566 1870 1913 Covad Communications Co.
7029 1609 1934 Windstream Communications Inc
10620 1575 1680 Types of queries are: POCs, o
8402 1427 1450 Corbina telecom
30036 1346 1384 Mediacom Communications Corp
11492 1115 1152 CABLE ONE, INC.
1785 1055 1835 PaeTec Communications, Inc.
7011 1048 1167 Frontier Communications of Am
22773 947 1458 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:387 2:481 4:15 5:1 6:3 8:352
12:1950 13:1 14:528 15:11 16:3 17:7
20:9 23:56 24:1686 27:960 31:574 32:60
33:4 34:2 36:4 38:743 40:108 41:2511
42:50 44:3 46:987 47:3 49:262 50:441
52:13 55:5 56:2 57:36 58:838 59:485
60:360 61:1013 62:1089 63:1928 64:4019 65:2294
66:3998 67:1963 68:1098 69:3195 70:833 71:378
72:1858 74:2511 75:363 76:339 77:882 78:865
79:482 80:1126 81:822 82:499 83:538 84:641
85:1117 86:411 87:865 88:355 89:1598 90:268
91:4159 92:526 93:1381 94:1296 95:1015 96:431
97:280 98:904 99:36 101:85 103:349 106:70
107:62 108:54 109:1044 110:633 111:791 112:308
113:460 114:562 115:668 116:871 117:686 118:833
119:1217 120:335 121:675 122:1588 123:1020 124:1288
125:1327 128:207 129:168 130:160 131:582 132:113
133:21 134:207 135:54 136:211 137:137 138:288
139:121 140:472 141:291 142:369 143:423 144:489
145:63 146:466 147:215 148:616 149:265 150:146
151:193 152:445 153:178 154:6 155:386 156:204
157:329 158:151 159:398 160:318 161:198 162:335
163:165 164:500 165:363 166:537 167:435 168:739
169:143 170:870 171:85 172:1 173:1670 174:659
175:413 176:277 177:293 178:1051 180:1093 181:37
182:619 183:205 184:372 185:1 186:1408 187:666
188:928 189:851 190:5088 192:5865 193:5022 194:3533
195:3095 196:1236 197:184 198:3572 199:4102 200:5454
201:1643 202:8265 203:8371 204:4229 205:2351 206:2585
207:2753 208:4041 209:3426 210:2613 211:1449 212:2080
213:1736 214:790 215:88 216:4898 217:1614 218:551
219:333 220:1201 221:490 222:293 223:280
End of report
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