Routing Table Report 08:00 +10GMT Wed 23 Mar, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 345880
Prefixes after maximum aggregation: 157263
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 173305
Total ASes present in the Internet Routing Table: 35969
Prefixes per ASN: 9.62
Origin-only ASes present in the Internet Routing Table: 31136
Origin ASes announcing only one prefix: 15000
Transit ASes present in the Internet Routing Table: 4833
Transit-only ASes present in the Internet Routing Table: 111
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: 1838
Unregistered ASNs in the Routing Table: 320
Number of 32-bit ASNs allocated by the RIRs: 1213
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 1965
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 198
Number of addresses announced to Internet: 2406776320
Equivalent to 143 /8s, 116 /16s and 126 /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: 141629
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 83480
Total APNIC prefixes after maximum aggregation: 28424
APNIC Deaggregation factor: 2.94
Prefixes being announced from the APNIC address blocks: 81199
Unique aggregates announced from the APNIC address blocks: 36458
APNIC Region origin ASes present in the Internet Routing Table: 4305
APNIC Prefixes per ASN: 18.86
APNIC Region origin ASes announcing only one prefix: 1219
APNIC Region transit ASes present in the Internet Routing Table: 648
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: 599231744
Equivalent to 35 /8s, 183 /16s and 141 /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: 137219
Total ARIN prefixes after maximum aggregation: 70286
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 110008
Unique aggregates announced from the ARIN address blocks: 45107
ARIN Region origin ASes present in the Internet Routing Table: 14196
ARIN Prefixes per ASN: 7.75
ARIN Region origin ASes announcing only one prefix: 5424
ARIN Region transit ASes present in the Internet Routing Table: 1400
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: 797032448
Equivalent to 47 /8s, 129 /16s and 192 /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: 83200
Total RIPE prefixes after maximum aggregation: 47213
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 76538
Unique aggregates announced from the RIPE address blocks: 49967
RIPE Region origin ASes present in the Internet Routing Table: 15439
RIPE Prefixes per ASN: 4.96
RIPE Region origin ASes announcing only one prefix: 7786
RIPE Region transit ASes present in the Internet Routing Table: 2388
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: 464919296
Equivalent to 27 /8s, 182 /16s and 27 /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: 31863
Total LACNIC prefixes after maximum aggregation: 7270
LACNIC Deaggregation factor: 4.38
Prefixes being announced from the LACNIC address blocks: 30905
Unique aggregates announced from the LACNIC address blocks: 16176
LACNIC Region origin ASes present in the Internet Routing Table: 1427
LACNIC Prefixes per ASN: 21.66
LACNIC Region origin ASes announcing only one prefix: 441
LACNIC Region transit ASes present in the Internet Routing Table: 250
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: 81419008
Equivalent to 4 /8s, 218 /16s and 91 /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: 7471
Total AfriNIC prefixes after maximum aggregation: 1802
AfriNIC Deaggregation factor: 4.15
Prefixes being announced from the AfriNIC address blocks: 5870
Unique aggregates announced from the AfriNIC address blocks: 1790
AfriNIC Region origin ASes present in the Internet Routing Table: 435
AfriNIC Prefixes per ASN: 13.49
AfriNIC Region origin ASes announcing only one prefix: 130
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: 22660352
Equivalent to 1 /8s, 89 /16s and 197 /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 1867 9500 591 Korea Telecom (KIX)
7545 1548 301 83 TPG Internet Pty Ltd
4755 1483 653 161 TATA Communications formerly
17974 1445 472 35 PT Telekomunikasi Indonesia
24560 1130 321 203 Bharti Airtel Ltd., Telemedia
9583 1054 77 495 Sify Limited
9829 1004 868 53 National Internet Backbone
18101 935 116 139 Reliance Infocom Ltd Internet
17488 934 162 96 Hathway IP Over Cable Interne
4808 933 2031 270 CNCGROUP IP network China169
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 2569 1109 404 tw telecom holdings, inc.
1785 1794 681 131 PaeTec Communications, Inc.
18566 1598 330 198 Covad Communications Co.
6478 1561 301 34 AT&T Services, Inc.
20115 1527 1536 645 Charter Communications
19262 1487 4935 303 Verizon Online LLC
7018 1376 6852 902 AT&T Services, Inc.
11492 1319 237 58 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
9198 472 267 15 Kazakhtelecom Data Network Ad
34984 455 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
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 1234 969 83 Types of queries are: POCs, o
8151 1228 2667 368 Uninet S.A. de C.V.
6503 1176 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 545 310 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 795 445 11 TEDATA
24863 770 147 37 LINKdotNET AS number
15475 425 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 213 199 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 2569 1109 404 tw telecom holdings, inc.
23456 1965 486 1085 32-bit ASN transition
4766 1867 9500 591 Korea Telecom (KIX)
1785 1794 681 131 PaeTec Communications, Inc.
18566 1598 330 198 Covad Communications Co.
6478 1561 301 34 AT&T Services, Inc.
7545 1548 301 83 TPG Internet Pty Ltd
20115 1527 1536 645 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 2569 2165 tw telecom holdings, inc.
1785 1794 1663 PaeTec Communications, Inc.
6478 1561 1527 AT&T Services, Inc.
7545 1548 1465 TPG Internet Pty Ltd
17974 1445 1410 PT Telekomunikasi Indonesia
18566 1598 1400 Covad Communications Co.
4755 1483 1322 TATA Communications formerly
4766 1867 1276 Korea Telecom (KIX)
11492 1319 1261 CABLE ONE, INC.
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
31.31.208.0/21 9188 infoServe GmbH
31.47.0.0/20 25144 Telekom Srpske
31.47.16.0/22 25144 Telekom Srpske
31.47.96.0/20 8251 NFX z.s.p.o.
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 /15:1370 /16:11538 /17:5655 /18:9379
/19:19141 /20:24739 /21:25098 /22:33476 /23:31860 /24:181596
/25:11 /26:17 /27:24 /28:157 /29:98 /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 1577 1598 Covad Communications Co.
6478 1515 1561 AT&T Services, Inc.
4323 1378 2569 tw telecom holdings, inc.
10620 1285 1394 Types of queries are: POCs, o
11492 1274 1319 CABLE ONE, INC.
23456 1067 1965 32-bit ASN transition
7011 1062 1163 Frontier Communications of Am
1785 1056 1794 PaeTec Communications, Inc.
6503 955 1176 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 2:57 4:14 5:1 8:344 12:2024
13:1 14:397 15:15 16:3 17:8 20:9
23:3 24:1567 27:680 31:6 32:56 33:3
34:2 37:1 38:743 39:1 40:101 41:2262
44:3 46:739 47:4 49:161 50:110 52:13
55:3 56:2 57:29 58:761 59:492 60:384
61:1060 62:1004 63:1915 64:3846 65:2352 66:4360
67:1785 68:1077 69:2896 70:698 71:359 72:1896
73:1 74:2320 75:284 76:344 77:846 78:682
79:454 80:1085 81:818 82:517 83:469 84:646
85:1030 86:528 87:771 88:343 89:1560 90:174
91:3643 92:506 93:1045 94:1235 95:782 96:443
97:252 98:808 99:34 101:45 106:1 107:4
108:72 109:902 110:509 111:696 112:314 113:376
114:485 115:701 116:940 117:654 118:720 119:1084
120:270 121:742 122:1608 123:1041 124:1304 125:1247
128:213 129:164 130:166 131:560 132:100 133:20
134:208 135:49 136:202 137:143 138:298 139:111
140:461 141:173 142:361 143:387 144:475 145:52
146:437 147:192 148:608 149:264 150:153 151:186
152:296 153:180 154:2 155:385 156:181 157:317
158:131 159:365 160:313 161:197 162:277 163:155
164:493 165:348 166:500 167:413 168:713 169:155
170:776 171:69 172:2 173:1257 174:523 175:334
177:52 178:820 180:777 181:4 182:391 183:242
184:228 185:1 186:1093 187:880 188:915 189:1018
190:4714 192:5716 193:4784 194:3490 195:2945 196:1184
197:15 198:3488 199:3849 200:5512 201:1573 202:8147
203:8355 204:4037 205:2293 206:2543 207:2950 208:3901
209:3456 210:2647 211:1351 212:1966 213:1714 214:757
215:66 216:4850 217:1649 218:547 219:380 220:1192
221:459 222:316 223:97
End of report
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