Routing Table Report 08:00 +10GMT Fri 08 Apr, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 347496
Prefixes after maximum aggregation: 158069
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 174266
Total ASes present in the Internet Routing Table: 36084
Prefixes per ASN: 9.63
Origin-only ASes present in the Internet Routing Table: 31199
Origin ASes announcing only one prefix: 15013
Transit ASes present in the Internet Routing Table: 4885
Transit-only ASes present in the Internet Routing Table: 120
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 25
Max AS path prepend of ASN (32374) 19
Prefixes from unregistered ASNs in the Routing Table: 1954
Unregistered ASNs in the Routing Table: 350
Number of 32-bit ASNs allocated by the RIRs: 1269
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2150
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 178
Number of addresses announced to Internet: 2421402368
Equivalent to 144 /8s, 83 /16s and 171 /24s
Percentage of available address space announced: 65.3
Percentage of allocated address space announced: 65.3
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 90.2
Total number of prefixes smaller than registry allocations: 142554
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 83594
Total APNIC prefixes after maximum aggregation: 28489
APNIC Deaggregation factor: 2.93
Prefixes being announced from the APNIC address blocks: 81396
Unique aggregates announced from the APNIC address blocks: 36611
APNIC Region origin ASes present in the Internet Routing Table: 4331
APNIC Prefixes per ASN: 18.79
APNIC Region origin ASes announcing only one prefix: 1214
APNIC Region transit ASes present in the Internet Routing Table: 669
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 23
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 604472064
Equivalent to 36 /8s, 7 /16s and 131 /24s
Percentage of available APNIC address space announced: 76.7
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: 137693
Total ARIN prefixes after maximum aggregation: 70446
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 110532
Unique aggregates announced from the ARIN address blocks: 45055
ARIN Region origin ASes present in the Internet Routing Table: 14231
ARIN Prefixes per ASN: 7.77
ARIN Region origin ASes announcing only one prefix: 5451
ARIN Region transit ASes present in the Internet Routing Table: 1415
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: 797732864
Equivalent to 47 /8s, 140 /16s and 112 /24s
Percentage of available ARIN address space announced: 63.4
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: 83654
Total RIPE prefixes after maximum aggregation: 47562
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 76864
Unique aggregates announced from the RIPE address blocks: 50513
RIPE Region origin ASes present in the Internet Routing Table: 15477
RIPE Prefixes per ASN: 4.97
RIPE Region origin ASes announcing only one prefix: 7781
RIPE Region transit ASes present in the Internet Routing Table: 2392
Average RIPE Region AS path length visible: 3.5
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: 463741440
Equivalent to 27 /8s, 164 /16s and 34 /24s
Percentage of available RIPE address space announced: 74.7
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: 32021
Total LACNIC prefixes after maximum aggregation: 7332
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 31095
Unique aggregates announced from the LACNIC address blocks: 16316
LACNIC Region origin ASes present in the Internet Routing Table: 1425
LACNIC Prefixes per ASN: 21.82
LACNIC Region origin ASes announcing only one prefix: 433
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 region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 81717760
Equivalent to 4 /8s, 222 /16s and 234 /24s
Percentage of available LACNIC address space announced: 54.1
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: 7641
Total AfriNIC prefixes after maximum aggregation: 1830
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 6008
Unique aggregates announced from the AfriNIC address blocks: 1859
AfriNIC Region origin ASes present in the Internet Routing Table: 443
AfriNIC Prefixes per ASN: 13.56
AfriNIC Region origin ASes announcing only one prefix: 134
AfriNIC Region transit ASes present in the Internet Routing Table: 98
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 22706688
Equivalent to 1 /8s, 90 /16s and 122 /24s
Percentage of available AfriNIC address space announced: 33.8
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 1876 9507 605 Korea Telecom (KIX)
7545 1542 301 81 TPG Internet Pty Ltd
17974 1442 472 34 PT Telekomunikasi Indonesia
4755 1441 638 168 TATA Communications formerly
24560 1137 322 204 Bharti Airtel Ltd., Telemedia
9583 1055 77 494 Sify Limited
9829 1001 867 54 National Internet Backbone
4808 948 2028 277 CNCGROUP IP network China169
18101 936 116 139 Reliance Infocom Ltd Internet
17488 866 156 99 Hathway IP Over Cable Interne
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 3669 3838 257 BellSouth.net Inc.
4323 2538 1106 396 tw telecom holdings, inc.
1785 1793 681 131 PaeTec Communications, Inc.
18566 1633 333 200 Covad Communications Co.
6478 1607 305 36 AT&T Services, Inc.
20115 1536 1551 641 Charter Communications
19262 1517 4940 298 Verizon Online LLC
7018 1367 6946 893 AT&T Services, Inc.
22773 1293 2865 84 Cox Communications Inc.
2386 1282 538 925 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 541 326 30 Goldenlines main autonomous s
6830 513 1780 318 UPC Broadband
34984 495 97 188 BILISIM TELEKOM
29049 468 34 34 AzerSat LLC.
20940 457 129 347 Akamai Technologies European
3292 455 2013 392 TDC Data Networks
8866 446 134 26 Bulgarian Telecommunication C
3320 418 7607 364 Deutsche Telekom AG
8551 405 355 38 Bezeq International
12479 400 577 6 France Telecom Espana SA
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 1414 262 154 Types of queries are: POCs, o
28573 1253 972 86 Types of queries are: POCs, o
8151 1229 2663 361 Uninet S.A. de C.V.
6503 1111 354 73 Axtel, S.A.B. de C.V.
7303 900 464 136 Telecom Argentina S.A.
14420 645 52 89 CORPORACION NACIONAL DE TELEC
22047 567 310 15 Types of queries are: POCs, o
3816 515 225 97 Types of queries are: POCs, o
11172 485 99 81 Alestra, S. de R.L. de C.V.
7738 479 922 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
8452 836 445 11 TEDATA
24863 772 147 36 LINKdotNET AS number
15475 424 90 8 Nile Online
36992 292 287 12 Etisalat MISR
3741 266 985 227 The Internet Solution
24835 232 78 10 RAYA Telecom - Egypt
6713 227 214 14 Itissalat Al-MAGHRIB
33776 218 12 8 Starcomms Nigeria Limited
29571 191 17 11 Ci Telecom Autonomous system
16637 147 441 86 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 3669 3838 257 BellSouth.net Inc.
4323 2538 1106 396 tw telecom holdings, inc.
23456 2150 625 1155 32-bit ASN transition
4766 1876 9507 605 Korea Telecom (KIX)
1785 1793 681 131 PaeTec Communications, Inc.
18566 1633 333 200 Covad Communications Co.
6478 1607 305 36 AT&T Services, Inc.
7545 1542 301 81 TPG Internet Pty Ltd
20115 1536 1551 641 Charter Communications
19262 1517 4940 298 Verizon Online LLC
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 2538 2142 tw telecom holdings, inc.
1785 1793 1662 PaeTec Communications, Inc.
6478 1607 1571 AT&T Services, Inc.
7545 1542 1461 TPG Internet Pty Ltd
18566 1633 1433 Covad Communications Co.
17974 1442 1408 PT Telekomunikasi Indonesia
4755 1441 1273 TATA Communications formerly
4766 1876 1271 Korea Telecom (KIX)
10620 1414 1260 Types of queries are: POCs, o
11492 1270 1255 CABLE ONE, 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
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.
21861 UNALLOCATED 12.37.59.0/24 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
1.3.0.0/16 38639 for assignment to JPNIC membe
2.56.0.0/16 44559 E-Rent LLC
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
41.57.192.0/18 22750 BCSNET
41.222.79.0/24 36938 >>UNKNOWN<<
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 /10:26 /11:74 /12:219
/13:448 /14:768 /15:1375 /16:11553 /17:5698 /18:9375
/19:19182 /20:25013 /21:25321 /22:33411 /23:31965 /24:182561
/25:11 /26:17 /27:24 /28:159 /29:96 /30:52
/31:0 /32:116
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2263 3669 BellSouth.net Inc.
18566 1611 1633 Covad Communications Co.
6478 1561 1607 AT&T Services, Inc.
4323 1358 2538 tw telecom holdings, inc.
10620 1304 1414 Types of queries are: POCs, o
11492 1219 1270 CABLE ONE, INC.
23456 1110 2150 32-bit ASN transition
7011 1061 1161 Frontier Communications of Am
1785 1057 1793 PaeTec Communications, Inc.
6503 895 1111 Axtel, S.A.B. de C.V.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:299 2:55 4:14 5:1 8:350 12:2005
13:1 14:420 15:15 16:3 17:8 20:9
23:5 24:1600 27:710 31:213 32:55 33:2
34:2 37:1 38:749 39:1 40:101 41:2370
42:1 44:3 46:785 47:4 49:173 50:214
52:13 55:3 56:2 57:27 58:793 59:478
60:314 61:1050 62:1005 63:1912 64:3862 65:2331
66:4300 67:1806 68:1077 69:2938 70:701 71:346
72:1902 73:1 74:2326 75:286 76:336 77:852
78:687 79:459 80:1086 81:824 82:513 83:462
84:648 85:1041 86:556 87:771 88:340 89:1584
90:176 91:3671 92:497 93:1054 94:1260 95:776
96:441 97:252 98:826 99:35 101:53 106:2
107:4 108:80 109:935 110:531 111:670 112:314
113:378 114:494 115:699 116:918 117:671 118:760
119:1123 120:287 121:687 122:1611 123:1034 124:1250
125:1228 128:212 129:168 130:166 131:562 132:101
133:20 134:209 135:49 136:210 137:139 138:301
139:102 140:465 141:173 142:361 143:385 144:477
145:52 146:438 147:202 148:621 149:262 150:161
151:187 152:296 153:180 154:2 155:391 156:186
157:325 158:132 159:374 160:316 161:232 162:276
163:156 164:487 165:348 166:508 167:417 168:719
169:153 170:774 171:75 172:1 173:1275 174:534
175:339 177:77 178:805 180:804 181:5 182:405
183:189 184:241 185:1 186:1116 187:914 188:940
189:1042 190:4794 192:5723 193:4803 194:3462 195:2950
196:1212 197:17 198:3521 199:3870 200:5527 201:1470
202:8137 203:8349 204:4057 205:2296 206:2518 207:2935
208:3915 209:3473 210:2622 211:1355 212:1989 213:1716
214:736 215:66 216:4842 217:1643 218:547 219:381
220:1189 221:462 222:306 223:102
End of report
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