Routing Table Report 08:00 +10GMT Tue 05 Apr, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 346880
Prefixes after maximum aggregation: 157806
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 174038
Total ASes present in the Internet Routing Table: 36050
Prefixes per ASN: 9.62
Origin-only ASes present in the Internet Routing Table: 31179
Origin ASes announcing only one prefix: 15012
Transit ASes present in the Internet Routing Table: 4871
Transit-only ASes present in the Internet Routing Table: 118
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: 1941
Unregistered ASNs in the Routing Table: 340
Number of 32-bit ASNs allocated by the RIRs: 1259
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2111
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 190
Number of addresses announced to Internet: 2410353664
Equivalent to 143 /8s, 171 /16s and 20 /24s
Percentage of available address space announced: 65.0
Percentage of allocated address space announced: 65.0
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 90.1
Total number of prefixes smaller than registry allocations: 142198
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 83555
Total APNIC prefixes after maximum aggregation: 28517
APNIC Deaggregation factor: 2.93
Prefixes being announced from the APNIC address blocks: 81339
Unique aggregates announced from the APNIC address blocks: 36603
APNIC Region origin ASes present in the Internet Routing Table: 4326
APNIC Prefixes per ASN: 18.80
APNIC Region origin ASes announcing only one prefix: 1222
APNIC Region transit ASes present in the Internet Routing Table: 663
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: 600843264
Equivalent to 35 /8s, 208 /16s and 36 /24s
Percentage of available APNIC address space announced: 76.2
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: 137361
Total ARIN prefixes after maximum aggregation: 70280
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 110197
Unique aggregates announced from the ARIN address blocks: 45005
ARIN Region origin ASes present in the Internet Routing Table: 14216
ARIN Prefixes per ASN: 7.75
ARIN Region origin ASes announcing only one prefix: 5442
ARIN Region transit ASes present in the Internet Routing Table: 1414
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: 797521920
Equivalent to 47 /8s, 137 /16s and 56 /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: 83617
Total RIPE prefixes after maximum aggregation: 47519
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 76839
Unique aggregates announced from the RIPE address blocks: 50443
RIPE Region origin ASes present in the Internet Routing Table: 15467
RIPE Prefixes per ASN: 4.97
RIPE Region origin ASes announcing only one prefix: 7777
RIPE Region transit ASes present in the Internet Routing Table: 2381
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: 465880832
Equivalent to 27 /8s, 196 /16s and 199 /24s
Percentage of available RIPE address space announced: 75.1
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: 32009
Total LACNIC prefixes after maximum aggregation: 7312
LACNIC Deaggregation factor: 4.38
Prefixes being announced from the LACNIC address blocks: 31077
Unique aggregates announced from the LACNIC address blocks: 16270
LACNIC Region origin ASes present in the Internet Routing Table: 1427
LACNIC Prefixes per ASN: 21.78
LACNIC Region origin ASes announcing only one prefix: 436
LACNIC Region transit ASes present in the Internet Routing Table: 253
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: 81640448
Equivalent to 4 /8s, 221 /16s and 188 /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: 7488
Total AfriNIC prefixes after maximum aggregation: 1821
AfriNIC Deaggregation factor: 4.11
Prefixes being announced from the AfriNIC address blocks: 5880
Unique aggregates announced from the AfriNIC address blocks: 1865
AfriNIC Region origin ASes present in the Internet Routing Table: 440
AfriNIC Prefixes per ASN: 13.36
AfriNIC Region origin ASes announcing only one prefix: 135
AfriNIC Region transit ASes present in the Internet Routing Table: 97
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: 22710528
Equivalent to 1 /8s, 90 /16s and 137 /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 1875 9507 605 Korea Telecom (KIX)
7545 1543 301 85 TPG Internet Pty Ltd
4755 1437 638 169 TATA Communications formerly
17974 1433 472 34 PT Telekomunikasi Indonesia
24560 1137 322 204 Bharti Airtel Ltd., Telemedia
9583 1055 77 494 Sify Limited
9829 1006 869 51 National Internet Backbone
4808 947 2028 276 CNCGROUP IP network China169
17488 939 162 97 Hathway IP Over Cable Interne
18101 935 116 139 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 3668 3838 257 BellSouth.net Inc.
4323 2537 1106 395 tw telecom holdings, inc.
1785 1791 681 131 PaeTec Communications, Inc.
18566 1597 330 198 Covad Communications Co.
6478 1596 304 47 AT&T Services, Inc.
20115 1535 1551 641 Charter Communications
19262 1491 4935 304 Verizon Online LLC
7018 1370 6930 896 AT&T Services, Inc.
11492 1322 240 15 CABLE ONE, INC.
22773 1291 2865 84 Cox Communications 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 541 326 30 Goldenlines main autonomous s
6830 513 1780 318 UPC Broadband
34984 484 97 186 BILISIM TELEKOM
3292 454 2013 391 TDC Data Networks
20940 451 128 341 Akamai Technologies European
8866 446 134 26 Bulgarian Telecommunication C
9198 415 267 15 Kazakhtelecom Data Network Ad
3320 412 7604 358 Deutsche Telekom AG
8551 405 355 38 Bezeq International
702 400 1803 313 >>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 1405 262 152 Types of queries are: POCs, o
28573 1246 971 84 Types of queries are: POCs, o
8151 1230 2661 366 Uninet S.A. de C.V.
6503 1110 354 73 Axtel, S.A.B. de C.V.
7303 901 464 136 Telecom Argentina S.A.
14420 642 52 91 CORPORACION NACIONAL DE TELEC
22047 567 310 15 Types of queries are: POCs, o
3816 516 225 97 Types of queries are: POCs, o
11172 485 99 80 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
24863 771 147 36 LINKdotNET AS number
8452 723 445 11 TEDATA
15475 425 90 8 Nile Online
36992 292 271 14 Etisalat MISR
3741 266 985 227 The Internet Solution
24835 234 78 10 RAYA Telecom - Egypt
6713 231 215 12 Itissalat Al-MAGHRIB
33776 227 13 5 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 3668 3838 257 BellSouth.net Inc.
4323 2537 1106 395 tw telecom holdings, inc.
23456 2111 505 1129 32-bit ASN transition
4766 1875 9507 605 Korea Telecom (KIX)
1785 1791 681 131 PaeTec Communications, Inc.
18566 1597 330 198 Covad Communications Co.
6478 1596 304 47 AT&T Services, Inc.
7545 1543 301 85 TPG Internet Pty Ltd
20115 1535 1551 641 Charter Communications
19262 1491 4935 304 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 2537 2142 tw telecom holdings, inc.
1785 1791 1660 PaeTec Communications, Inc.
6478 1596 1549 AT&T Services, Inc.
7545 1543 1458 TPG Internet Pty Ltd
18566 1597 1399 Covad Communications Co.
17974 1433 1399 PT Telekomunikasi Indonesia
11492 1322 1307 CABLE ONE, INC.
4766 1875 1270 Korea Telecom (KIX)
4755 1437 1268 TATA Communications formerly
10620 1405 1253 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
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
31.171.240.0/20 50837 CLOUDSIGMA AG
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 /8:20 /9:11 /10:26 /11:74 /12:218
/13:447 /14:766 /15:1374 /16:11541 /17:5688 /18:9367
/19:19148 /20:24889 /21:25225 /22:33498 /23:31959 /24:182149
/25:11 /26:17 /27:24 /28:160 /29:97 /30:52
/31:0 /32:119
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2262 3668 BellSouth.net Inc.
18566 1576 1597 Covad Communications Co.
6478 1550 1596 AT&T Services, Inc.
4323 1358 2537 tw telecom holdings, inc.
10620 1295 1405 Types of queries are: POCs, o
11492 1271 1322 CABLE ONE, INC.
23456 1104 2111 32-bit ASN transition
7011 1064 1164 Frontier Communications of Am
1785 1056 1791 PaeTec Communications, Inc.
6503 894 1110 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)
----------------------------------------------
1:293 2:56 4:14 5:1 8:348 12:2007
13:1 14:416 15:15 16:3 17:8 20:9
23:5 24:1593 27:707 31:53 32:55 33:1
34:2 37:1 38:747 39:1 40:101 41:2300
42:1 44:3 46:793 47:4 49:148 50:139
52:13 55:3 56:2 57:27 58:791 59:477
60:385 61:1056 62:1008 63:1910 64:3841 65:2331
66:4306 67:1809 68:1076 69:2942 70:700 71:343
72:1900 73:1 74:2323 75:285 76:336 77:851
78:701 79:455 80:1081 81:823 82:515 83:468
84:647 85:1039 86:556 87:771 88:340 89:1587
90:176 91:3641 92:507 93:1047 94:1242 95:787
96:454 97:253 98:817 99:35 101:41 106:1
107:4 108:80 109:929 110:528 111:672 112:314
113:388 114:492 115:676 116:916 117:672 118:752
119:1118 120:285 121:686 122:1610 123:1032 124:1254
125:1248 128:213 129:168 130:166 131:564 132:101
133:20 134:206 135:49 136:210 137:139 138:301
139:103 140:464 141:173 142:362 143:382 144:476
145:52 146:438 147:202 148:620 149:262 150:159
151:187 152:296 153:180 154:2 155:389 156:184
157:325 158:131 159:374 160:316 161:232 162:276
163:154 164:489 165:347 166:503 167:413 168:716
169:153 170:773 171:74 172:2 173:1261 174:531
175:338 177:70 178:799 180:794 181:6 182:404
183:200 184:238 185:1 186:1119 187:918 188:929
189:1039 190:4795 192:5721 193:4802 194:3461 195:2947
196:1199 197:16 198:3533 199:3847 200:5537 201:1482
202:8137 203:8337 204:4050 205:2297 206:2554 207:2947
208:3900 209:3475 210:2649 211:1356 212:1983 213:1712
214:729 215:65 216:4832 217:1628 218:547 219:372
220:1189 221:462 222:312 223:102
End of report
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