Routing Table Report 08:00 +10GMT Fri 11 Mar, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 345377
Prefixes after maximum aggregation: 156780
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 172711
Total ASes present in the Internet Routing Table: 35887
Prefixes per ASN: 9.62
Origin-only ASes present in the Internet Routing Table: 31037
Origin ASes announcing only one prefix: 14947
Transit ASes present in the Internet Routing Table: 4850
Transit-only ASes present in the Internet Routing Table: 117
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: 1366
Unregistered ASNs in the Routing Table: 299
Number of 32-bit ASNs allocated by the RIRs: 1189
Prefixes from 32-bit ASNs in the Routing Table: 1831
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 247
Number of addresses announced to Internet: 2485651456
Equivalent to 148 /8s, 40 /16s and 8 /24s
Percentage of available address space announced: 67.1
Percentage of allocated address space announced: 67.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 89.1
Total number of prefixes smaller than registry allocations: 141551
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 83296
Total APNIC prefixes after maximum aggregation: 28299
APNIC Deaggregation factor: 2.94
Prefixes being announced from the APNIC address blocks: 80903
Unique aggregates announced from the APNIC address blocks: 36165
APNIC Region origin ASes present in the Internet Routing Table: 4297
APNIC Prefixes per ASN: 18.83
APNIC Region origin ASes announcing only one prefix: 1216
APNIC Region transit ASes present in the Internet Routing Table: 656
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 20
Number of APNIC addresses announced to Internet: 595293184
Equivalent to 35 /8s, 123 /16s and 116 /24s
Percentage of available APNIC address space announced: 75.5
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: 137348
Total ARIN prefixes after maximum aggregation: 70213
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 110045
Unique aggregates announced from the ARIN address blocks: 45004
ARIN Region origin ASes present in the Internet Routing Table: 14160
ARIN Prefixes per ASN: 7.77
ARIN Region origin ASes announcing only one prefix: 5395
ARIN Region transit ASes present in the Internet Routing Table: 1399
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 796357632
Equivalent to 47 /8s, 119 /16s and 116 /24s
Percentage of available ARIN address space announced: 63.3
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: 83149
Total RIPE prefixes after maximum aggregation: 47002
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 76420
Unique aggregates announced from the RIPE address blocks: 49718
RIPE Region origin ASes present in the Internet Routing Table: 15397
RIPE Prefixes per ASN: 4.96
RIPE Region origin ASes announcing only one prefix: 7771
RIPE Region transit ASes present in the Internet Routing Table: 2391
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 480973568
Equivalent to 28 /8s, 171 /16s and 19 /24s
Percentage of available RIPE address space announced: 77.5
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: 31583
Total LACNIC prefixes after maximum aggregation: 7279
LACNIC Deaggregation factor: 4.34
Prefixes being announced from the LACNIC address blocks: 30594
Unique aggregates announced from the LACNIC address blocks: 16121
LACNIC Region origin ASes present in the Internet Routing Table: 1425
LACNIC Prefixes per ASN: 21.47
LACNIC Region origin ASes announcing only one prefix: 436
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 addresses announced to Internet: 81311744
Equivalent to 4 /8s, 216 /16s and 184 /24s
Percentage of available LACNIC address space announced: 53.9
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: 7502
Total AfriNIC prefixes after maximum aggregation: 1825
AfriNIC Deaggregation factor: 4.11
Prefixes being announced from the AfriNIC address blocks: 5882
Unique aggregates announced from the AfriNIC address blocks: 1852
AfriNIC Region origin ASes present in the Internet Routing Table: 434
AfriNIC Prefixes per ASN: 13.55
AfriNIC Region origin ASes announcing only one prefix: 129
AfriNIC Region transit ASes present in the Internet Routing Table: 94
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 22033920
Equivalent to 1 /8s, 80 /16s and 54 /24s
Percentage of available AfriNIC address space announced: 32.8
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 1864 9500 590 Korea Telecom (KIX)
7545 1578 301 83 TPG Internet Pty Ltd
4755 1474 653 157 TATA Communications formerly
17974 1408 459 29 PT Telekomunikasi Indonesia
24560 1130 324 186 Bharti Airtel Ltd., Telemedia
9583 1047 76 487 Sify Limited
9829 1004 868 53 National Internet Backbone
17488 943 162 96 Hathway IP Over Cable Interne
4808 938 2032 271 CNCGROUP IP network China169
18101 935 117 141 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 3682 3839 260 BellSouth.net Inc.
4323 2584 1125 405 tw telecom holdings, inc.
19262 1829 4953 282 Verizon Online LLC
1785 1793 681 131 PaeTec Communications, Inc.
6478 1537 298 82 AT&T Services, Inc.
20115 1526 1534 650 Charter Communications
18566 1521 325 178 Covad Communications Co.
7018 1380 6868 901 AT&T Services, Inc.
11492 1311 236 66 CABLE ONE, INC.
2386 1295 538 935 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 542 328 31 Goldenlines main autonomous s
6830 513 1780 317 UPC Broadband
9198 470 267 15 Kazakhtelecom Data Network Ad
34984 466 98 145 BILISIM TELEKOM
3292 450 1996 389 TDC Data Networks
8866 443 133 23 Bulgarian Telecommunication C
20940 412 97 316 Akamai Technologies European
8551 405 355 38 Bezeq International
3320 404 7604 352 Deutsche Telekom AG
702 398 1803 312 >>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 1384 258 163 Types of queries are: POCs, o
28573 1226 963 83 Types of queries are: POCs, o
8151 1223 2681 361 Uninet S.A. de C.V.
6503 1173 354 74 Axtel, S.A.B. de C.V.
7303 897 463 134 Telecom Argentina S.A.
14420 644 56 93 CORPORACION NACIONAL DE TELEC
22047 541 310 15 Types of queries are: POCs, o
3816 517 225 96 Types of queries are: POCs, o
11172 487 99 83 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 792 445 11 TEDATA
24863 767 147 37 LINKdotNET AS number
15475 420 90 8 Nile Online
36992 300 271 14 Etisalat MISR
3741 266 987 228 The Internet Solution
33776 230 13 5 Starcomms Nigeria Limited
24835 228 78 10 RAYA Telecom - Egypt
6713 204 199 11 Itissalat Al-MAGHRIB
29571 192 17 11 Ci Telecom Autonomous system
16637 140 422 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 3682 3839 260 BellSouth.net Inc.
4323 2584 1125 405 tw telecom holdings, inc.
4766 1864 9500 590 Korea Telecom (KIX)
23456 1831 468 1031 32-bit ASN transition
19262 1829 4953 282 Verizon Online LLC
1785 1793 681 131 PaeTec Communications, Inc.
7545 1578 301 83 TPG Internet Pty Ltd
6478 1537 298 82 AT&T Services, Inc.
20115 1526 1534 650 Charter Communications
18566 1521 325 178 Covad Communications Co.
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 2584 2179 tw telecom holdings, inc.
1785 1793 1662 PaeTec Communications, Inc.
19262 1829 1547 Verizon Online LLC
7545 1578 1495 TPG Internet Pty Ltd
6478 1537 1455 AT&T Services, Inc.
17974 1408 1379 PT Telekomunikasi Indonesia
18566 1521 1343 Covad Communications Co.
4755 1474 1317 TATA Communications formerly
4766 1864 1274 Korea Telecom (KIX)
11492 1311 1245 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 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
1.5.0.0/16 38639 for assignment to JPNIC membe
1.6.0.0/15 38639 for assignment to JPNIC membe
1.8.0.0/16 38639 for assignment to JPNIC membe
1.20.0.0/16 38639 for assignment to JPNIC membe
1.32.0.0/16 38639 for assignment to JPNIC membe
1.37.0.0/16 38639 for assignment to JPNIC membe
1.187.0.0/16 38639 for assignment to JPNIC membe
14.0.0.0/24 38639 for assignment to JPNIC membe
14.0.1.0/24 38639 for assignment to JPNIC membe
14.0.2.0/23 38639 for assignment to JPNIC membe
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 /8:25 /9:11 /10:26 /11:73 /12:217
/13:446 /14:767 /15:1370 /16:11539 /17:5630 /18:9318
/19:19110 /20:24699 /21:25134 /22:33440 /23:31863 /24:181256
/25:11 /26:17 /27:24 /28:152 /29:94 /30:48
/31:0 /32:107
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2271 3682 BellSouth.net Inc.
18566 1499 1521 Covad Communications Co.
6478 1491 1537 AT&T Services, Inc.
4323 1389 2584 tw telecom holdings, inc.
10620 1275 1384 Types of queries are: POCs, o
11492 1268 1311 CABLE ONE, INC.
7011 1058 1159 Frontier Communications of Am
1785 1055 1793 PaeTec Communications, Inc.
23456 1037 1831 32-bit ASN transition
6503 951 1173 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)
----------------------------------------------
1:264 2:54 4:14 5:1 8:341 12:2027
13:1 14:408 15:15 16:3 17:8 20:9
23:3 24:1513 27:604 31:4 32:56 33:4
34:2 36:2 37:1 38:710 39:1 40:101
41:2305 42:13 44:3 46:705 47:4 49:165
50:197 52:13 55:2 56:2 57:29 58:757
59:492 60:384 61:1039 62:1015 63:1919 64:3840
65:2348 66:4328 67:1771 68:1062 69:2880 70:700
71:399 72:2006 73:1 74:2347 75:283 76:341
77:839 78:698 79:447 80:1090 81:802 82:521
83:466 84:644 85:1045 86:571 87:766 88:352
89:1569 90:173 91:3603 92:494 93:1045 94:1217
95:780 96:466 97:250 98:801 99:34 101:52
106:1 107:4 108:129 109:908 110:477 111:713
112:310 113:381 114:475 115:706 116:938 117:674
118:701 119:1030 120:255 121:730 122:1609 123:1037
124:1278 125:1256 128:214 129:162 130:165 131:555
132:101 133:20 134:213 135:49 136:209 137:143
138:300 139:108 140:464 141:203 142:360 143:377
144:490 145:51 146:431 147:193 148:620 149:275
150:154 151:230 152:296 153:180 154:2 155:377
156:176 157:316 158:131 159:364 160:311 161:201
162:276 163:150 164:487 165:349 166:496 167:409
168:723 169:154 170:754 171:69 172:2 173:1256
174:516 175:322 177:35 178:792 180:802 181:4
182:374 183:244 184:229 186:1043 187:817 188:910
189:1032 190:4563 192:5728 193:4779 194:3480 195:2946
196:1211 197:4 198:3502 199:3832 200:5559 201:1579
202:8068 203:8358 204:4030 205:2288 206:2551 207:2995
208:3902 209:3448 210:2634 211:1345 212:1947 213:1716
214:750 215:63 216:4821 217:1654 218:543 219:380
220:1191 221:460 222:313 223:97
End of report
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