Routing Table Report 08:00 +10GMT Tue 20 Sep, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 366226
Prefixes after maximum aggregation: 165948
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 184922
Total ASes present in the Internet Routing Table: 37239
Prefixes per ASN: 9.83
Origin-only ASes present in the Internet Routing Table: 32136
Origin ASes announcing only one prefix: 15465
Transit ASes present in the Internet Routing Table: 5103
Transit-only ASes present in the Internet Routing Table: 126
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 31
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 2668
Unregistered ASNs in the Routing Table: 827
Number of 32-bit ASNs allocated by the RIRs: 1750
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3254
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 99
Number of addresses announced to Internet: 2495076352
Equivalent to 148 /8s, 183 /16s and 216 /24s
Percentage of available address space announced: 67.3
Percentage of allocated address space announced: 67.3
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.3
Total number of prefixes smaller than registry allocations: 151208
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 88786
Total APNIC prefixes after maximum aggregation: 29420
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 86291
Unique aggregates announced from the APNIC address blocks: 38242
APNIC Region origin ASes present in the Internet Routing Table: 4519
APNIC Prefixes per ASN: 19.10
APNIC Region origin ASes announcing only one prefix: 1267
APNIC Region transit ASes present in the Internet Routing Table: 688
Average APNIC Region AS path length visible: 3.9
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: 626966272
Equivalent to 37 /8s, 94 /16s and 191 /24s
Percentage of available APNIC address space announced: 79.5
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: 142088
Total ARIN prefixes after maximum aggregation: 73177
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 114355
Unique aggregates announced from the ARIN address blocks: 48078
ARIN Region origin ASes present in the Internet Routing Table: 14583
ARIN Prefixes per ASN: 7.84
ARIN Region origin ASes announcing only one prefix: 5629
ARIN Region transit ASes present in the Internet Routing Table: 1474
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: 804831488
Equivalent to 47 /8s, 248 /16s and 193 /24s
Percentage of available ARIN address space announced: 64.0
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: 88686
Total RIPE prefixes after maximum aggregation: 50107
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 81643
Unique aggregates announced from the RIPE address blocks: 53910
RIPE Region origin ASes present in the Internet Routing Table: 15963
RIPE Prefixes per ASN: 5.11
RIPE Region origin ASes announcing only one prefix: 7962
RIPE Region transit ASes present in the Internet Routing Table: 2506
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 31
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 489262592
Equivalent to 29 /8s, 41 /16s and 142 /24s
Percentage of available RIPE address space announced: 78.8
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: 34257
Total LACNIC prefixes after maximum aggregation: 7631
LACNIC Deaggregation factor: 4.49
Prefixes being announced from the LACNIC address blocks: 33715
Unique aggregates announced from the LACNIC address blocks: 17833
LACNIC Region origin ASes present in the Internet Routing Table: 1513
LACNIC Prefixes per ASN: 22.28
LACNIC Region origin ASes announcing only one prefix: 452
LACNIC Region transit ASes present in the Internet Routing Table: 261
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: 89080320
Equivalent to 5 /8s, 79 /16s and 66 /24s
Percentage of available LACNIC address space announced: 59.0
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: 8444
Total AfriNIC prefixes after maximum aggregation: 2019
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 6509
Unique aggregates announced from the AfriNIC address blocks: 2012
AfriNIC Region origin ASes present in the Internet Routing Table: 487
AfriNIC Prefixes per ASN: 13.37
AfriNIC Region origin ASes announcing only one prefix: 155
AfriNIC Region transit ASes present in the Internet Routing Table: 106
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: 27242240
Equivalent to 1 /8s, 159 /16s and 175 /24s
Percentage of available AfriNIC address space announced: 40.6
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 1944 11040 649 Korea Telecom (KIX)
17974 1717 516 31 PT Telekomunikasi Indonesia
7545 1594 303 85 TPG Internet Pty Ltd
4755 1544 379 166 TATA Communications formerly
24560 1182 337 194 Bharti Airtel Ltd., Telemedia
9829 1158 989 28 National Internet Backbone
9583 1084 80 503 Sify Limited
7552 998 1062 11 Vietel Corporation
4808 957 1995 270 CNCGROUP IP network China169
18101 952 118 140 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 3562 3817 227 BellSouth.net Inc.
18566 1910 364 235 Covad Communications Co.
1785 1825 680 122 PaeTec Communications, Inc.
7029 1642 1033 206 Windstream Communications Inc
4323 1624 1101 394 tw telecom holdings, inc.
20115 1594 1542 634 Charter Communications
22773 1453 2905 98 Cox Communications Inc.
30036 1427 263 678 Mediacom Communications Corp
19262 1394 4724 399 Verizon Online LLC
7018 1342 7084 880 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
34984 560 108 179 BILISIM TELEKOM
9116 540 326 31 Goldenlines main autonomous s
6830 523 1811 322 UPC Broadband
20940 523 171 406 Akamai Technologies European
3292 473 2081 405 TDC Data Networks
12479 473 594 8 France Telecom Espana SA
8866 460 133 26 Bulgarian Telecommunication C
3320 436 8153 377 Deutsche Telekom AG
29049 423 31 56 AzerSat LLC.
8402 416 352 13 Corbina telecom
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 1679 309 156 Types of queries are: POCs, o
28573 1343 1012 69 Types of queries are: POCs, o
8151 1273 2783 353 Uninet S.A. de C.V.
7303 1156 678 170 Telecom Argentina S.A.
14420 734 58 88 CORPORACION NACIONAL DE TELEC
22047 579 322 17 Types of queries are: POCs, o
6503 567 450 69 Axtel, S.A.B. de C.V.
27947 556 56 77 Telconet S.A
3816 528 231 104 Types of queries are: POCs, o
7738 515 986 31 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 810 147 41 LINKdotNET AS number
8452 698 445 11 TEDATA
15475 449 74 8 Nile Online
36992 292 415 14 Etisalat MISR
3741 274 938 229 The Internet Solution
6713 242 519 14 Itissalat Al-MAGHRIB
33776 239 13 8 Starcomms Nigeria Limited
15706 219 32 6 Sudatel Internet Exchange Aut
12258 199 28 59 Vodacom Internet Company
29571 193 17 13 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 3562 3817 227 BellSouth.net Inc.
23456 3254 772 1754 32-bit ASN transition
4766 1944 11040 649 Korea Telecom (KIX)
18566 1910 364 235 Covad Communications Co.
1785 1825 680 122 PaeTec Communications, Inc.
17974 1717 516 31 PT Telekomunikasi Indonesia
10620 1679 309 156 Types of queries are: POCs, o
7029 1642 1033 206 Windstream Communications Inc
4323 1624 1101 394 tw telecom holdings, inc.
7545 1594 303 85 TPG Internet Pty Ltd
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 1825 1703 PaeTec Communications, Inc.
17974 1717 1686 PT Telekomunikasi Indonesia
18566 1910 1675 Covad Communications Co.
10620 1679 1523 Types of queries are: POCs, o
7545 1594 1509 TPG Internet Pty Ltd
23456 3254 1500 32-bit ASN transition
7029 1642 1436 Windstream Communications Inc
4755 1544 1378 TATA Communications formerly
22773 1453 1355 Cox Communications Inc.
4766 1944 1295 Korea Telecom (KIX)
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
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
46.18.104.0/21 23456 32-bit ASN transition
62.61.220.0/24 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 /14:800 /15:1411 /16:11934 /17:5947 /18:9970
/19:19845 /20:26956 /21:26973 /22:35971 /23:34427 /24:190632
/25:12 /26:20 /27:23 /28:156 /29:118 /30:59
/31:0 /32:132
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2198 3562 BellSouth.net Inc.
18566 1867 1910 Covad Communications Co.
10620 1574 1679 Types of queries are: POCs, o
23456 1554 3254 32-bit ASN transition
30036 1385 1427 Mediacom Communications Corp
7029 1327 1642 Windstream Communications Inc
11492 1112 1149 CABLE ONE, INC.
7011 1058 1183 Frontier Communications of Am
1785 1052 1825 PaeTec Communications, Inc.
22773 944 1453 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:369 2:53 4:15 5:1 6:3 8:348
12:1954 13:1 14:530 15:13 16:3 17:5
20:10 23:34 24:1665 27:934 31:529 32:59
33:4 34:2 36:4 38:737 40:108 41:2559
42:48 44:3 46:980 47:3 49:248 50:419
52:13 54:2 55:5 56:2 57:34 58:824
59:489 60:372 61:1017 62:1087 63:1933 64:4018
65:2293 66:3915 67:1947 68:1093 69:3179 70:778
71:377 72:1858 74:2433 75:326 76:338 77:870
78:664 79:479 80:1121 81:843 82:508 83:500
84:628 85:1087 86:416 87:871 88:351 89:1540
90:234 91:4110 92:528 93:1151 94:1324 95:769
96:431 97:272 98:929 99:37 101:84 103:304
106:94 107:48 108:78 109:1014 110:638 111:779
112:304 113:422 114:552 115:665 116:877 117:656
118:854 119:1161 120:336 121:668 122:1595 123:1012
124:1300 125:1333 128:208 129:172 130:159 131:575
132:112 133:21 134:207 135:53 136:210 137:134
138:288 139:106 140:471 141:285 142:371 143:403
144:479 145:59 146:461 147:214 148:615 149:250
150:146 151:190 152:450 153:177 154:5 155:394
156:198 157:325 158:144 159:393 160:324 161:198
162:333 163:166 164:507 165:372 166:536 167:432
168:741 169:144 170:859 171:84 172:4 173:1638
174:624 175:396 176:176 177:258 178:999 180:1053
181:26 182:611 183:234 184:371 185:1 186:1450
187:672 188:940 189:874 190:5127 192:5869 193:5011
194:3518 195:3056 196:1254 197:143 198:3532 199:4071
200:5438 201:1632 202:8242 203:8361 204:4178 205:2316
206:2588 207:2761 208:4024 209:3432 210:2623 211:1460
212:2105 213:1771 214:781 215:76 216:4831 217:1611
218:542 219:328 220:1188 221:498 222:294 223:262
End of report
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