Routing Table Report 08:00 +10GMT Wed 08 Jun, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 354133
Prefixes after maximum aggregation: 160668
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 178035
Total ASes present in the Internet Routing Table: 36494
Prefixes per ASN: 9.70
Origin-only ASes present in the Internet Routing Table: 31522
Origin ASes announcing only one prefix: 15168
Transit ASes present in the Internet Routing Table: 4972
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: 29
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 2156
Unregistered ASNs in the Routing Table: 495
Number of 32-bit ASNs allocated by the RIRs: 1433
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2584
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 153
Number of addresses announced to Internet: 2468538880
Equivalent to 147 /8s, 34 /16s and 234 /24s
Percentage of available address space announced: 66.6
Percentage of allocated address space announced: 66.6
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.0
Total number of prefixes smaller than registry allocations: 146230
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 84980
Total APNIC prefixes after maximum aggregation: 28741
APNIC Deaggregation factor: 2.96
Prefixes being announced from the APNIC address blocks: 82294
Unique aggregates announced from the APNIC address blocks: 36697
APNIC Region origin ASes present in the Internet Routing Table: 4417
APNIC Prefixes per ASN: 18.63
APNIC Region origin ASes announcing only one prefix: 1261
APNIC Region transit ASes present in the Internet Routing Table: 668
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 618132224
Equivalent to 36 /8s, 215 /16s and 243 /24s
Percentage of available APNIC address space announced: 78.4
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: 139510
Total ARIN prefixes after maximum aggregation: 71096
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 111803
Unique aggregates announced from the ARIN address blocks: 46193
ARIN Region origin ASes present in the Internet Routing Table: 14350
ARIN Prefixes per ASN: 7.79
ARIN Region origin ASes announcing only one prefix: 5496
ARIN Region transit ASes present in the Internet Routing Table: 1446
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: 801984768
Equivalent to 47 /8s, 205 /16s and 81 /24s
Percentage of available ARIN address space announced: 63.7
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: 85774
Total RIPE prefixes after maximum aggregation: 48549
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 79218
Unique aggregates announced from the RIPE address blocks: 51988
RIPE Region origin ASes present in the Internet Routing Table: 15666
RIPE Prefixes per ASN: 5.06
RIPE Region origin ASes announcing only one prefix: 7834
RIPE Region transit ASes present in the Internet Routing Table: 2446
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 27
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 475819264
Equivalent to 28 /8s, 92 /16s and 109 /24s
Percentage of available RIPE address space announced: 76.7
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: 32382
Total LACNIC prefixes after maximum aggregation: 7403
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 31794
Unique aggregates announced from the LACNIC address blocks: 16908
LACNIC Region origin ASes present in the Internet Routing Table: 1441
LACNIC Prefixes per ASN: 22.06
LACNIC Region origin ASes announcing only one prefix: 437
LACNIC Region transit ASes present in the Internet Routing Table: 247
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 29
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 84586752
Equivalent to 5 /8s, 10 /16s and 177 /24s
Percentage of available LACNIC address space announced: 56.0
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: 8174
Total AfriNIC prefixes after maximum aggregation: 1968
AfriNIC Deaggregation factor: 4.15
Prefixes being announced from the AfriNIC address blocks: 6331
Unique aggregates announced from the AfriNIC address blocks: 1926
AfriNIC Region origin ASes present in the Internet Routing Table: 455
AfriNIC Prefixes per ASN: 13.91
AfriNIC Region origin ASes announcing only one prefix: 140
AfriNIC Region transit ASes present in the Internet Routing Table: 100
Average AfriNIC Region AS path length visible: 3.5
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 24112640
Equivalent to 1 /8s, 111 /16s and 238 /24s
Percentage of available AfriNIC address space announced: 35.9
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 1901 9492 618 Korea Telecom (KIX)
17974 1550 441 38 PT Telekomunikasi Indonesia
7545 1537 301 85 TPG Internet Pty Ltd
4755 1470 374 164 TATA Communications formerly
24560 1155 337 190 Bharti Airtel Ltd., Telemedia
7552 1141 1064 7 Vietel Corporation
9583 1081 80 509 Sify Limited
9829 1041 878 59 National Internet Backbone
4808 959 2015 278 CNCGROUP IP network China169
17488 934 173 105 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 3638 3822 256 BellSouth.net Inc.
4323 1964 1097 402 tw telecom holdings, inc.
18566 1874 355 268 Covad Communications Co.
1785 1794 681 122 PaeTec Communications, Inc.
6478 1719 318 43 AT&T Services, Inc.
20115 1539 1541 633 Charter Communications
19262 1492 4936 307 Verizon Online LLC
7018 1381 7102 905 AT&T Services, Inc.
22773 1338 2897 88 Cox Communications Inc.
2386 1269 536 911 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 539 326 30 Goldenlines main autonomous s
34984 520 106 180 BILISIM TELEKOM
6830 512 1780 320 UPC Broadband
3292 461 2078 396 TDC Data Networks
20940 455 133 347 Akamai Technologies European
29049 451 33 48 AzerSat LLC.
8866 445 134 26 Bulgarian Telecommunication C
12479 431 593 7 France Telecom Espana SA
3320 420 8151 366 Deutsche Telekom AG
8551 407 356 39 Bezeq International
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 1512 278 157 Types of queries are: POCs, o
28573 1305 992 86 Types of queries are: POCs, o
8151 1245 2707 357 Uninet S.A. de C.V.
7303 937 504 142 Telecom Argentina S.A.
6503 731 354 74 Axtel, S.A.B. de C.V.
14420 675 54 89 CORPORACION NACIONAL DE TELEC
22047 564 310 15 Types of queries are: POCs, o
3816 528 231 92 Types of queries are: POCs, o
13489 517 262 122 EPM Telecomunicaciones S.A. E
7738 516 986 31 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 795 445 11 TEDATA
24863 784 147 35 LINKdotNET AS number
15475 520 74 8 Nile Online
36992 310 415 17 Etisalat MISR
3741 264 937 225 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 217 12 11 Starcomms Nigeria Limited
24835 210 78 10 RAYA Telecom - Egypt
29571 192 17 11 Ci Telecom Autonomous system
11380 181 125 57 INTERNETOFFICEPARKS
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 3638 3822 256 BellSouth.net Inc.
23456 2584 640 1407 32-bit ASN transition
4323 1964 1097 402 tw telecom holdings, inc.
4766 1901 9492 618 Korea Telecom (KIX)
18566 1874 355 268 Covad Communications Co.
1785 1794 681 122 PaeTec Communications, Inc.
6478 1719 318 43 AT&T Services, Inc.
17974 1550 441 38 PT Telekomunikasi Indonesia
20115 1539 1541 633 Charter Communications
7545 1537 301 85 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6478 1719 1676 AT&T Services, Inc.
1785 1794 1672 PaeTec Communications, Inc.
18566 1874 1606 Covad Communications Co.
4323 1964 1562 tw telecom holdings, inc.
17974 1550 1512 PT Telekomunikasi Indonesia
7545 1537 1452 TPG Internet Pty Ltd
10620 1512 1355 Types of queries are: POCs, o
4755 1470 1306 TATA Communications formerly
4766 1901 1283 Korea Telecom (KIX)
22773 1338 1250 Cox Communications 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
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.
26973 UNALLOCATED 12.39.152.0/24 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
27.0.128.0/17 7514 Media EXchange, Inc.
31.131.128.0/20 48595 Sergiy Lazebniy
41.190.52.0/23 30844 Econet Satellite Services Ltd
41.190.54.0/23 36959 AfriConnect Zambia 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 /8:21 /9:12 /10:28 /11:81 /12:230
/13:462 /14:798 /15:1393 /16:11887 /17:5826 /18:9707
/19:19432 /20:25781 /21:25919 /22:34036 /23:32842 /24:185173
/25:13 /26:17 /27:25 /28:161 /29:101 /30:55
/31:0 /32:133
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2240 3638 BellSouth.net Inc.
18566 1837 1874 Covad Communications Co.
6478 1673 1719 AT&T Services, Inc.
10620 1402 1512 Types of queries are: POCs, o
23456 1266 2584 32-bit ASN transition
11492 1109 1155 CABLE ONE, INC.
7011 1062 1161 Frontier Communications of Am
1785 1050 1794 PaeTec Communications, Inc.
7029 879 1195 Alltel Information Services,
4323 876 1964 tw telecom holdings, inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:279 2:46 4:16 5:1 6:3 8:338
12:1974 13:1 14:449 15:15 16:3 17:8
20:10 23:11 24:1609 27:768 31:425 32:55
33:4 34:2 37:1 38:733 40:101 41:2523
42:6 44:3 46:941 47:3 49:199 50:402
52:13 54:2 55:4 56:2 57:28 58:798
59:470 60:385 61:1015 62:1047 63:1931 64:3905
65:2252 66:4123 67:1866 68:1085 69:2989 70:703
71:369 72:1844 74:2352 75:308 76:340 77:882
78:706 79:465 80:1089 81:835 82:498 83:476
84:668 85:1076 86:581 87:758 88:332 89:1532
90:203 91:3807 92:527 93:1050 94:1292 95:822
96:502 97:251 98:888 99:35 101:56 103:50
106:1 107:7 108:83 109:970 110:597 111:701
112:295 113:393 114:534 115:677 116:937 117:683
118:789 119:1128 120:310 121:647 122:1619 123:937
124:1262 125:1214 128:209 129:167 130:158 131:572
132:102 133:19 134:205 135:48 136:212 137:141
138:300 139:109 140:460 141:239 142:388 143:408
144:496 145:54 146:439 147:213 148:580 149:246
150:166 151:187 152:328 153:179 154:2 155:397
156:195 157:323 158:138 159:372 160:317 161:200
162:297 163:155 164:500 165:351 166:523 167:429
168:724 169:153 170:798 171:77 172:1 173:1591
174:583 175:357 176:131 177:139 178:997 180:848
181:18 182:449 183:204 184:294 185:1 186:1211
187:741 188:847 189:897 190:4863 192:5792 193:4908
194:3484 195:2999 196:1209 197:19 198:3531 199:3891
200:5485 201:1477 202:8084 203:8242 204:4106 205:2314
206:2605 207:2804 208:3949 209:3454 210:2644 211:1391
212:2024 213:1709 214:734 215:72 216:4913 217:1634
218:533 219:361 220:1197 221:475 222:309 223:151
End of report
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