Routing Table Report 08:00 +10GMT Thu 24 Mar, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 346049
Prefixes after maximum aggregation: 157305
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 173129
Total ASes present in the Internet Routing Table: 35988
Prefixes per ASN: 9.62
Origin-only ASes present in the Internet Routing Table: 31142
Origin ASes announcing only one prefix: 14997
Transit ASes present in the Internet Routing Table: 4846
Transit-only ASes present in the Internet Routing Table: 114
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: 1843
Unregistered ASNs in the Routing Table: 323
Number of 32-bit ASNs allocated by the RIRs: 1219
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 1985
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 198
Number of addresses announced to Internet: 2407087616
Equivalent to 143 /8s, 121 /16s and 62 /24s
Percentage of available address space announced: 64.9
Percentage of allocated address space announced: 64.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 89.6
Total number of prefixes smaller than registry allocations: 141670
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 83547
Total APNIC prefixes after maximum aggregation: 28407
APNIC Deaggregation factor: 2.94
Prefixes being announced from the APNIC address blocks: 81266
Unique aggregates announced from the APNIC address blocks: 36438
APNIC Region origin ASes present in the Internet Routing Table: 4306
APNIC Prefixes per ASN: 18.87
APNIC Region origin ASes announcing only one prefix: 1220
APNIC Region transit ASes present in the Internet Routing Table: 650
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 599340288
Equivalent to 35 /8s, 185 /16s and 53 /24s
Percentage of available APNIC address space announced: 76.0
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: 137283
Total ARIN prefixes after maximum aggregation: 70274
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 110057
Unique aggregates announced from the ARIN address blocks: 44822
ARIN Region origin ASes present in the Internet Routing Table: 14206
ARIN Prefixes per ASN: 7.75
ARIN Region origin ASes announcing only one prefix: 5427
ARIN Region transit ASes present in the Internet Routing Table: 1398
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: 797080576
Equivalent to 47 /8s, 130 /16s and 124 /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: 83069
Total RIPE prefixes after maximum aggregation: 47271
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 76442
Unique aggregates announced from the RIPE address blocks: 50021
RIPE Region origin ASes present in the Internet Routing Table: 15442
RIPE Prefixes per ASN: 4.95
RIPE Region origin ASes announcing only one prefix: 7778
RIPE Region transit ASes present in the Internet Routing Table: 2396
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: 465043968
Equivalent to 27 /8s, 184 /16s and 2 /24s
Percentage of available RIPE address space announced: 74.9
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: 31933
Total LACNIC prefixes after maximum aggregation: 7278
LACNIC Deaggregation factor: 4.39
Prefixes being announced from the LACNIC address blocks: 30990
Unique aggregates announced from the LACNIC address blocks: 16247
LACNIC Region origin ASes present in the Internet Routing Table: 1428
LACNIC Prefixes per ASN: 21.70
LACNIC Region origin ASes announcing only one prefix: 441
LACNIC Region transit ASes present in the Internet Routing Table: 252
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: 81389568
Equivalent to 4 /8s, 217 /16s and 232 /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: 7552
Total AfriNIC prefixes after maximum aggregation: 1801
AfriNIC Deaggregation factor: 4.19
Prefixes being announced from the AfriNIC address blocks: 5941
Unique aggregates announced from the AfriNIC address blocks: 1802
AfriNIC Region origin ASes present in the Internet Routing Table: 436
AfriNIC Prefixes per ASN: 13.63
AfriNIC Region origin ASes announcing only one prefix: 131
AfriNIC Region transit ASes present in the Internet Routing Table: 93
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: 22662400
Equivalent to 1 /8s, 89 /16s and 205 /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 1850 9500 591 Korea Telecom (KIX)
7545 1552 301 83 TPG Internet Pty Ltd
4755 1480 653 158 TATA Communications formerly
17974 1447 472 35 PT Telekomunikasi Indonesia
24560 1130 321 203 Bharti Airtel Ltd., Telemedia
9583 1045 76 495 Sify Limited
9829 1004 868 53 National Internet Backbone
4808 941 2033 276 CNCGROUP IP network China169
18101 935 116 139 Reliance Infocom Ltd Internet
17488 934 162 96 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 3675 3838 258 BellSouth.net Inc.
4323 2567 1109 403 tw telecom holdings, inc.
1785 1794 681 131 PaeTec Communications, Inc.
18566 1597 330 198 Covad Communications Co.
6478 1566 302 34 AT&T Services, Inc.
20115 1531 1540 647 Charter Communications
19262 1487 4935 303 Verizon Online LLC
7018 1376 6852 902 AT&T Services, Inc.
11492 1324 240 15 CABLE ONE, INC.
22773 1286 2865 80 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 542 328 31 Goldenlines main autonomous s
6830 513 1780 317 UPC Broadband
34984 454 95 205 BILISIM TELEKOM
3292 453 2013 390 TDC Data Networks
8866 443 133 24 Bulgarian Telecommunication C
20940 418 100 322 Akamai Technologies European
9198 412 267 15 Kazakhtelecom Data Network Ad
3320 408 7604 355 Deutsche Telekom AG
8551 405 355 38 Bezeq International
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 1394 260 159 Types of queries are: POCs, o
28573 1233 969 83 Types of queries are: POCs, o
8151 1228 2653 367 Uninet S.A. de C.V.
6503 1181 354 74 Axtel, S.A.B. de C.V.
7303 900 464 136 Telecom Argentina S.A.
14420 638 52 91 CORPORACION NACIONAL DE TELEC
22047 548 310 15 Types of queries are: POCs, o
3816 517 225 97 Types of queries are: POCs, o
13489 492 213 104 EPM Telecomunicaciones S.A. E
11172 485 99 81 Alestra, S. de R.L. de C.V.
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 855 445 11 TEDATA
24863 770 147 37 LINKdotNET AS number
15475 429 90 8 Nile Online
36992 298 271 14 Etisalat MISR
3741 265 985 227 The Internet Solution
24835 232 78 10 RAYA Telecom - Egypt
33776 230 13 5 Starcomms Nigeria Limited
6713 214 199 11 Itissalat Al-MAGHRIB
29571 192 17 11 Ci Telecom Autonomous system
16637 148 441 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 3675 3838 258 BellSouth.net Inc.
4323 2567 1109 403 tw telecom holdings, inc.
23456 1985 488 1088 32-bit ASN transition
4766 1850 9500 591 Korea Telecom (KIX)
1785 1794 681 131 PaeTec Communications, Inc.
18566 1597 330 198 Covad Communications Co.
6478 1566 302 34 AT&T Services, Inc.
7545 1552 301 83 TPG Internet Pty Ltd
20115 1531 1540 647 Charter Communications
19262 1487 4935 303 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 2567 2164 tw telecom holdings, inc.
1785 1794 1663 PaeTec Communications, Inc.
6478 1566 1532 AT&T Services, Inc.
7545 1552 1469 TPG Internet Pty Ltd
17974 1447 1412 PT Telekomunikasi Indonesia
18566 1597 1399 Covad Communications Co.
4755 1480 1322 TATA Communications formerly
11492 1324 1309 CABLE ONE, INC.
4766 1850 1259 Korea Telecom (KIX)
10620 1394 1235 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
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
31.47.96.0/20 8251 NFX z.s.p.o.
31.47.112.0/20 16285 UMN Autonomous System
31.47.232.0/21 34549 Laxin IT-Services GmbH & Co.
31.186.32.0/21 48142 Permanet Ltd
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 /14:764 /15:1369 /16:11544 /17:5662 /18:9389
/19:19157 /20:24728 /21:25099 /22:33497 /23:31873 /24:181705
/25:11 /26:17 /27:24 /28:157 /29:96 /30:50
/31:0 /32:111
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2268 3675 BellSouth.net Inc.
18566 1576 1597 Covad Communications Co.
6478 1520 1566 AT&T Services, Inc.
4323 1377 2567 tw telecom holdings, inc.
10620 1285 1394 Types of queries are: POCs, o
11492 1272 1324 CABLE ONE, INC.
23456 1078 1985 32-bit ASN transition
7011 1063 1164 Frontier Communications of Am
1785 1056 1794 PaeTec Communications, Inc.
6503 957 1181 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)
----------------------------------------------
1:285 2:59 4:14 5:1 8:344 12:2024
13:1 14:401 15:15 16:3 17:8 20:9
23:3 24:1569 27:682 31:6 32:56 33:3
34:2 37:1 38:744 39:1 40:101 41:2326
44:3 46:740 47:4 49:138 50:113 52:13
55:4 56:2 57:29 58:768 59:492 60:384
61:1062 62:976 63:1913 64:3843 65:2354 66:4351
67:1797 68:1076 69:2897 70:690 71:359 72:1896
73:1 74:2321 75:284 76:344 77:847 78:694
79:454 80:1084 81:822 82:517 83:463 84:645
85:1032 86:528 87:769 88:340 89:1562 90:175
91:3646 92:503 93:1047 94:1239 95:779 96:446
97:252 98:806 99:34 101:45 106:1 107:4
108:77 109:918 110:519 111:694 112:312 113:374
114:489 115:709 116:941 117:654 118:720 119:1080
120:275 121:742 122:1615 123:1039 124:1308 125:1248
128:213 129:166 130:167 131:561 132:100 133:20
134:208 135:49 136:209 137:140 138:298 139:111
140:461 141:173 142:363 143:390 144:470 145:52
146:436 147:193 148:608 149:264 150:155 151:187
152:296 153:180 154:2 155:388 156:181 157:318
158:131 159:365 160:313 161:197 162:277 163:155
164:492 165:348 166:499 167:414 168:709 169:155
170:772 171:70 172:2 173:1256 174:520 175:337
177:60 178:806 180:782 181:4 182:393 183:233
184:229 185:1 186:1100 187:878 188:909 189:1028
190:4726 192:5716 193:4778 194:3482 195:2934 196:1192
197:15 198:3488 199:3844 200:5555 201:1575 202:8163
203:8357 204:4040 205:2292 206:2545 207:2951 208:3898
209:3458 210:2646 211:1352 212:1963 213:1692 214:756
215:65 216:4860 217:1641 218:544 219:380 220:1181
221:458 222:308 223:96
End of report
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