Routing Table Report 08:00 +10GMT Fri 24 Jun, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 355801
Prefixes after maximum aggregation: 162051
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 178565
Total ASes present in the Internet Routing Table: 36636
Prefixes per ASN: 9.71
Origin-only ASes present in the Internet Routing Table: 31616
Origin ASes announcing only one prefix: 15227
Transit ASes present in the Internet Routing Table: 5020
Transit-only ASes present in the Internet Routing Table: 116
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 27
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 2220
Unregistered ASNs in the Routing Table: 541
Number of 32-bit ASNs allocated by the RIRs: 1481
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2722
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 139
Number of addresses announced to Internet: 2492388096
Equivalent to 148 /8s, 142 /16s and 211 /24s
Percentage of available address space announced: 67.2
Percentage of allocated address space announced: 67.2
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: 146638
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 85297
Total APNIC prefixes after maximum aggregation: 28793
APNIC Deaggregation factor: 2.96
Prefixes being announced from the APNIC address blocks: 83054
Unique aggregates announced from the APNIC address blocks: 36115
APNIC Region origin ASes present in the Internet Routing Table: 4443
APNIC Prefixes per ASN: 18.69
APNIC Region origin ASes announcing only one prefix: 1262
APNIC Region transit ASes present in the Internet Routing Table: 675
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: 621157632
Equivalent to 37 /8s, 6 /16s and 29 /24s
Percentage of available APNIC address space announced: 78.8
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: 139874
Total ARIN prefixes after maximum aggregation: 71879
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 112140
Unique aggregates announced from the ARIN address blocks: 46537
ARIN Region origin ASes present in the Internet Routing Table: 14360
ARIN Prefixes per ASN: 7.81
ARIN Region origin ASes announcing only one prefix: 5500
ARIN Region transit ASes present in the Internet Routing Table: 1452
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 24
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 802453504
Equivalent to 47 /8s, 212 /16s and 120 /24s
Percentage of available ARIN address space announced: 63.8
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: 86415
Total RIPE prefixes after maximum aggregation: 48896
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 79815
Unique aggregates announced from the RIPE address blocks: 52624
RIPE Region origin ASes present in the Internet Routing Table: 15749
RIPE Prefixes per ASN: 5.07
RIPE Region origin ASes announcing only one prefix: 7878
RIPE Region transit ASes present in the Internet Routing Table: 2468
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: 478273024
Equivalent to 28 /8s, 129 /16s and 222 /24s
Percentage of available RIPE address space announced: 77.0
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: 32455
Total LACNIC prefixes after maximum aggregation: 7446
LACNIC Deaggregation factor: 4.36
Prefixes being announced from the LACNIC address blocks: 31869
Unique aggregates announced from the LACNIC address blocks: 16903
LACNIC Region origin ASes present in the Internet Routing Table: 1458
LACNIC Prefixes per ASN: 21.86
LACNIC Region origin ASes announcing only one prefix: 445
LACNIC Region transit ASes present in the Internet Routing Table: 248
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 85547776
Equivalent to 5 /8s, 25 /16s and 91 /24s
Percentage of available LACNIC address space announced: 56.7
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: 8312
Total AfriNIC prefixes after maximum aggregation: 2011
AfriNIC Deaggregation factor: 4.13
Prefixes being announced from the AfriNIC address blocks: 6462
Unique aggregates announced from the AfriNIC address blocks: 1969
AfriNIC Region origin ASes present in the Internet Routing Table: 460
AfriNIC Prefixes per ASN: 14.05
AfriNIC Region origin ASes announcing only one prefix: 142
AfriNIC Region transit ASes present in the Internet Routing Table: 101
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: 24272640
Equivalent to 1 /8s, 114 /16s and 95 /24s
Percentage of available AfriNIC address space announced: 36.2
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 623 Korea Telecom (KIX)
17974 1558 460 45 PT Telekomunikasi Indonesia
7545 1541 301 84 TPG Internet Pty Ltd
4755 1476 374 165 TATA Communications formerly
24560 1153 336 187 Bharti Airtel Ltd., Telemedia
9583 1078 80 510 Sify Limited
9829 1016 872 73 National Internet Backbone
17488 955 183 104 Hathway IP Over Cable Interne
4808 952 2008 279 CNCGROUP IP network China169
18101 933 116 139 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 3622 3819 251 BellSouth.net Inc.
18566 1912 365 240 Covad Communications Co.
1785 1800 681 122 PaeTec Communications, Inc.
4323 1661 1097 399 tw telecom holdings, inc.
20115 1517 1527 634 Charter Communications
6478 1499 276 522 AT&T Services, Inc.
19262 1453 4811 373 Verizon Online LLC
7029 1407 1031 207 Alltel Information Services,
7018 1374 7086 903 AT&T Services, Inc.
22773 1341 2897 87 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 540 326 31 Goldenlines main autonomous s
34984 529 107 182 BILISIM TELEKOM
6830 515 1780 321 UPC Broadband
3292 469 2080 404 TDC Data Networks
20940 467 137 359 Akamai Technologies European
8866 445 134 26 Bulgarian Telecommunication C
29049 445 33 45 AzerSat LLC.
12479 437 593 7 France Telecom Espana SA
3320 420 8151 367 Deutsche Telekom AG
8551 405 355 38 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 1532 281 157 Types of queries are: POCs, o
8151 1254 2718 358 Uninet S.A. de C.V.
28573 1252 993 78 Types of queries are: POCs, o
7303 969 506 159 Telecom Argentina S.A.
6503 732 354 74 Axtel, S.A.B. de C.V.
14420 683 55 82 CORPORACION NACIONAL DE TELEC
22047 576 322 17 Types of queries are: POCs, o
3816 534 231 94 Types of queries are: POCs, o
7738 516 986 31 Telecomunicacoes da Bahia S.A
11172 495 100 85 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
24863 795 147 35 LINKdotNET AS number
8452 790 445 11 TEDATA
15475 525 74 8 Nile Online
36992 310 415 14 Etisalat MISR
3741 261 937 223 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 215 12 11 Starcomms Nigeria Limited
24835 211 78 10 RAYA Telecom - Egypt
29571 192 17 11 Ci Telecom Autonomous system
16637 149 441 87 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 3622 3819 251 BellSouth.net Inc.
23456 2722 670 1466 32-bit ASN transition
18566 1912 365 240 Covad Communications Co.
4766 1901 9492 623 Korea Telecom (KIX)
1785 1800 681 122 PaeTec Communications, Inc.
4323 1661 1097 399 tw telecom holdings, inc.
17974 1558 460 45 PT Telekomunikasi Indonesia
7545 1541 301 84 TPG Internet Pty Ltd
10620 1532 281 157 Types of queries are: POCs, o
20115 1517 1527 634 Charter Communications
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
1785 1800 1678 PaeTec Communications, Inc.
18566 1912 1672 Covad Communications Co.
17974 1558 1513 PT Telekomunikasi Indonesia
7545 1541 1457 TPG Internet Pty Ltd
10620 1532 1375 Types of queries are: POCs, o
4755 1476 1311 TATA Communications formerly
4766 1901 1278 Korea Telecom (KIX)
4323 1661 1262 tw telecom holdings, inc.
23456 2722 1256 32-bit ASN transition
22773 1341 1254 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.
41.190.32.0/23 31856 CABSAS
41.190.34.0/23 31856 CABSAS
41.190.36.0/23 31856 CABSAS
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 /8:23 /9:12 /10:28 /11:81 /12:231
/13:461 /14:799 /15:1395 /16:11930 /17:5833 /18:9662
/19:19473 /20:25737 /21:26004 /22:34236 /23:33065 /24:186326
/25:13 /26:18 /27:25 /28:162 /29:102 /30:57
/31:0 /32:128
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2225 3622 BellSouth.net Inc.
18566 1868 1912 Covad Communications Co.
6478 1466 1499 AT&T Services, Inc.
10620 1427 1532 Types of queries are: POCs, o
23456 1350 2722 32-bit ASN transition
11492 1087 1133 CABLE ONE, INC.
7029 1086 1407 Alltel Information Services,
7011 1059 1160 Frontier Communications of Am
1785 1050 1800 PaeTec Communications, Inc.
22773 856 1341 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:290 2:45 4:16 5:1 6:3 8:336
12:1977 13:1 14:449 15:15 16:3 17:8
20:10 23:11 24:1650 27:803 31:478 32:59
33:4 34:2 37:1 38:734 39:3 40:103
41:2537 42:2 44:3 46:988 47:3 49:195
50:413 52:13 54:2 55:3 56:2 57:31
58:793 59:469 60:384 61:1021 62:1052 63:1930
64:3913 65:2282 66:3871 67:1902 68:1085 69:3038
70:752 71:376 72:1886 74:2373 75:316 76:339
77:882 78:706 79:472 80:1110 81:842 82:499
83:457 84:668 85:1080 86:552 87:758 88:332
89:1524 90:209 91:3874 92:536 93:1049 94:1310
95:840 96:440 97:249 98:879 99:36 101:70
103:89 106:10 107:15 108:70 109:1007 110:607
111:702 112:294 113:400 114:542 115:657 116:947
117:671 118:786 119:1131 120:310 121:646 122:1629
123:949 124:1267 125:1224 128:209 129:166 130:163
131:572 132:104 133:21 134:206 135:48 136:213
137:135 138:299 139:112 140:465 141:238 142:387
143:417 144:483 145:54 146:443 147:214 148:592
149:245 150:162 151:190 152:330 153:180 154:3
155:398 156:192 157:323 158:138 159:385 160:312
161:200 162:307 163:152 164:493 165:351 166:533
167:433 168:734 169:156 170:837 171:77 172:1
173:1616 174:607 175:359 176:137 177:149 178:974
180:885 181:19 182:471 183:222 184:306 185:1
186:1233 187:733 188:872 189:912 190:4885 192:5827
193:4967 194:3480 195:3040 196:1223 197:41 198:3530
199:3919 200:5460 201:1500 202:8137 203:8334 204:4125
205:2321 206:2589 207:2735 208:3944 209:3445 210:2636
211:1451 212:2111 213:1734 214:766 215:69 216:4910
217:1636 218:536 219:358 220:1201 221:475 222:310
223:159
End of report
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