Routing Table Report 08:00 +10GMT Thu 31 Mar, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 346974
Prefixes after maximum aggregation: 157688
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 173649
Total ASes present in the Internet Routing Table: 36018
Prefixes per ASN: 9.63
Origin-only ASes present in the Internet Routing Table: 31163
Origin ASes announcing only one prefix: 15004
Transit ASes present in the Internet Routing Table: 4855
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: 1917
Unregistered ASNs in the Routing Table: 332
Number of 32-bit ASNs allocated by the RIRs: 1246
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2074
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 204
Number of addresses announced to Internet: 2408816896
Equivalent to 143 /8s, 147 /16s and 161 /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: 89.9
Total number of prefixes smaller than registry allocations: 142077
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 83833
Total APNIC prefixes after maximum aggregation: 28501
APNIC Deaggregation factor: 2.94
Prefixes being announced from the APNIC address blocks: 81591
Unique aggregates announced from the APNIC address blocks: 36612
APNIC Region origin ASes present in the Internet Routing Table: 4321
APNIC Prefixes per ASN: 18.88
APNIC Region origin ASes announcing only one prefix: 1214
APNIC Region transit ASes present in the Internet Routing Table: 665
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: 600398592
Equivalent to 35 /8s, 201 /16s and 91 /24s
Percentage of available APNIC address space announced: 76.1
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: 137406
Total ARIN prefixes after maximum aggregation: 70331
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 110177
Unique aggregates announced from the ARIN address blocks: 44975
ARIN Region origin ASes present in the Internet Routing Table: 14204
ARIN Prefixes per ASN: 7.76
ARIN Region origin ASes announcing only one prefix: 5429
ARIN Region transit ASes present in the Internet Routing Table: 1410
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: 797319936
Equivalent to 47 /8s, 134 /16s and 35 /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: 83468
Total RIPE prefixes after maximum aggregation: 47421
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 76761
Unique aggregates announced from the RIPE address blocks: 50140
RIPE Region origin ASes present in the Internet Routing Table: 15456
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: 2375
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: 465498112
Equivalent to 27 /8s, 190 /16s and 240 /24s
Percentage of available RIPE address space announced: 75.0
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: 31867
Total LACNIC prefixes after maximum aggregation: 7306
LACNIC Deaggregation factor: 4.36
Prefixes being announced from the LACNIC address blocks: 30936
Unique aggregates announced from the LACNIC address blocks: 16234
LACNIC Region origin ASes present in the Internet Routing Table: 1428
LACNIC Prefixes per ASN: 21.66
LACNIC Region origin ASes announcing only one prefix: 444
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: 81507840
Equivalent to 4 /8s, 219 /16s and 182 /24s
Percentage of available LACNIC address space announced: 54.0
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: 7591
Total AfriNIC prefixes after maximum aggregation: 1798
AfriNIC Deaggregation factor: 4.22
Prefixes being announced from the AfriNIC address blocks: 5969
Unique aggregates announced from the AfriNIC address blocks: 1850
AfriNIC Region origin ASes present in the Internet Routing Table: 436
AfriNIC Prefixes per ASN: 13.69
AfriNIC Region origin ASes announcing only one prefix: 136
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 region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 22634240
Equivalent to 1 /8s, 89 /16s and 95 /24s
Percentage of available AfriNIC address space announced: 33.7
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 1863 9501 598 Korea Telecom (KIX)
7545 1540 301 83 TPG Internet Pty Ltd
4755 1482 653 159 TATA Communications formerly
17974 1462 472 34 PT Telekomunikasi Indonesia
24560 1135 322 204 Bharti Airtel Ltd., Telemedia
9583 1055 77 494 Sify Limited
9829 1006 869 51 National Internet Backbone
4808 947 2034 278 CNCGROUP IP network China169
17488 936 162 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 3670 3838 258 BellSouth.net Inc.
4323 2561 1107 399 tw telecom holdings, inc.
1785 1790 681 131 PaeTec Communications, Inc.
18566 1597 330 198 Covad Communications Co.
6478 1586 303 42 AT&T Services, Inc.
20115 1528 1539 648 Charter Communications
19262 1489 4935 303 Verizon Online LLC
7018 1375 6964 901 AT&T Services, Inc.
11492 1320 240 15 CABLE ONE, INC.
22773 1288 2865 81 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 512 1780 317 UPC Broadband
34984 473 96 198 BILISIM TELEKOM
3292 455 2013 392 TDC Data Networks
8866 444 133 25 Bulgarian Telecommunication C
9198 424 267 15 Kazakhtelecom Data Network Ad
20940 419 99 326 Akamai Technologies European
3320 412 7604 358 Deutsche Telekom AG
8551 405 355 38 Bezeq International
702 399 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 1238 971 84 Types of queries are: POCs, o
8151 1228 2655 365 Uninet S.A. de C.V.
6503 1107 354 72 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.
14117 480 38 44 Telefonica del Sur 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 842 445 11 TEDATA
24863 770 147 36 LINKdotNET AS number
15475 429 90 8 Nile Online
36992 295 271 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 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 3670 3838 258 BellSouth.net Inc.
4323 2561 1107 399 tw telecom holdings, inc.
23456 2074 498 1116 32-bit ASN transition
4766 1863 9501 598 Korea Telecom (KIX)
1785 1790 681 131 PaeTec Communications, Inc.
18566 1597 330 198 Covad Communications Co.
6478 1586 303 42 AT&T Services, Inc.
7545 1540 301 83 TPG Internet Pty Ltd
20115 1528 1539 648 Charter Communications
19262 1489 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 2561 2162 tw telecom holdings, inc.
1785 1790 1659 PaeTec Communications, Inc.
6478 1586 1544 AT&T Services, Inc.
7545 1540 1457 TPG Internet Pty Ltd
17974 1462 1428 PT Telekomunikasi Indonesia
18566 1597 1399 Covad Communications Co.
4755 1482 1323 TATA Communications formerly
11492 1320 1305 CABLE ONE, INC.
4766 1863 1265 Korea Telecom (KIX)
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
31.41.128.0/21 39056 PB Anoxin
31.129.160.0/19 24872 Magnus ISP autonomous system
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 /14:765 /15:1371 /16:11567 /17:5688 /18:9384
/19:19172 /20:24824 /21:25218 /22:33557 /23:31977 /24:182179
/25:11 /26:17 /27:24 /28:158 /29:101 /30:51
/31:0 /32:114
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2263 3670 BellSouth.net Inc.
18566 1576 1597 Covad Communications Co.
6478 1540 1586 AT&T Services, Inc.
4323 1375 2561 tw telecom holdings, inc.
10620 1295 1405 Types of queries are: POCs, o
11492 1269 1320 CABLE ONE, INC.
23456 1100 2074 32-bit ASN transition
7011 1064 1164 Frontier Communications of Am
1785 1056 1790 PaeTec Communications, Inc.
6503 890 1107 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)
----------------------------------------------
1:289 2:54 4:14 5:1 8:332 12:2012
13:1 14:414 15:15 16:3 17:8 20:9
23:5 24:1591 27:699 31:29 32:56 33:3
34:2 37:1 38:743 39:1 40:101 41:2365
44:3 46:779 47:4 49:140 50:132 52:13
55:4 56:2 57:27 58:773 59:495 60:385
61:1067 62:1008 63:1910 64:3855 65:2346 66:4352
67:1804 68:1074 69:2922 70:696 71:343 72:1897
73:1 74:2330 75:285 76:336 77:851 78:692
79:450 80:1098 81:822 82:518 83:466 84:648
85:1031 86:554 87:771 88:345 89:1562 90:175
91:3660 92:510 93:1042 94:1233 95:779 96:451
97:252 98:811 99:35 101:41 106:1 107:4
108:80 109:928 110:517 111:674 112:322 113:385
114:498 115:710 116:917 117:672 118:743 119:1108
120:285 121:738 122:1605 123:1042 124:1294 125:1256
128:213 129:168 130:167 131:563 132:102 133:20
134:212 135:49 136:210 137:139 138:300 139:110
140:463 141:173 142:365 143:389 144:479 145:52
146:436 147:197 148:618 149:260 150:159 151:187
152:296 153:180 154:2 155:390 156:182 157:319
158:131 159:373 160:316 161:201 162:276 163:155
164:493 165:346 166:502 167:413 168:717 169:153
170:779 171:70 172:2 173:1257 174:531 175:339
177:73 178:767 180:786 181:4 182:400 183:201
184:232 185:1 186:1118 187:895 188:921 189:1038
190:4733 192:5721 193:4794 194:3485 195:2942 196:1208
197:15 198:3534 199:3851 200:5538 201:1480 202:8158
203:8340 204:4025 205:2297 206:2545 207:2950 208:3900
209:3460 210:2638 211:1355 212:1989 213:1704 214:765
215:66 216:4863 217:1641 218:546 219:380 220:1189
221:462 222:307 223:101
End of report
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