Routing Table Report 08:00 +10GMT Wed 18 Sep, 2013
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 461911
Prefixes after maximum aggregation: 186986
Deaggregation factor: 2.47
Unique aggregates announced to Internet: 232081
Total ASes present in the Internet Routing Table: 40939
Prefixes per ASN: 11.28
Origin-only ASes present in the Internet Routing Table: 35163
Origin ASes announcing only one prefix: 16311
Transit ASes present in the Internet Routing Table: 5769
Transit-only ASes present in the Internet Routing Table: 143
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: 270314
Unregistered ASNs in the Routing Table: 21123
Number of 32-bit ASNs allocated by the RIRs: 5041
Number of 32-bit ASNs visible in the Routing Table: 7
Prefixes from 32-bit ASNs in the Routing Table: 12166
Special use prefixes present in the Routing Table: 11
Prefixes being announced from unallocated address space: 462
Number of addresses announced to Internet: 2663851776
Equivalent to 158 /8s, 199 /16s and 39 /24s
Percentage of available address space announced: 72.0
Percentage of allocated address space announced: 72.0
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 95.0
Total number of prefixes smaller than registry allocations: 160883
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 106990
Total APNIC prefixes after maximum aggregation: 32890
APNIC Deaggregation factor: 3.25
Prefixes being announced from the APNIC address blocks: 109595
Unique aggregates announced from the APNIC address blocks: 46568
APNIC Region origin ASes present in the Internet Routing Table: 4839
APNIC Prefixes per ASN: 22.65
APNIC Region origin ASes announcing only one prefix: 1241
APNIC Region transit ASes present in the Internet Routing Table: 816
Average APNIC Region AS path length visible: 3.8
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 1
Number of APNIC addresses announced to Internet: 726712576
Equivalent to 43 /8s, 80 /16s and 193 /24s
Percentage of available APNIC address space announced: 84.9
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-63999, 131072-133631
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, 150/8, 153/8,
163/8, 171/8, 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: 160791
Total ARIN prefixes after maximum aggregation: 80800
ARIN Deaggregation factor: 1.99
Prefixes being announced from the ARIN address blocks: 161458
Unique aggregates announced from the ARIN address blocks: 75825
ARIN Region origin ASes present in the Internet Routing Table: 15833
ARIN Prefixes per ASN: 10.20
ARIN Region origin ASes announcing only one prefix: 6031
ARIN Region transit ASes present in the Internet Routing Table: 1602
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: 2
Number of ARIN addresses announced to Internet: 1071236096
Equivalent to 63 /8s, 217 /16s and 196 /24s
Percentage of available ARIN address space announced: 56.7
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, 62464-63487, 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, 128/8,
129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8,
137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8,
146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8,
157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8,
165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8,
173/8, 174/8, 184/8, 192/8, 198/8, 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: 118946
Total RIPE prefixes after maximum aggregation: 61067
RIPE Deaggregation factor: 1.95
Prefixes being announced from the RIPE address blocks: 122763
Unique aggregates announced from the RIPE address blocks: 79205
RIPE Region origin ASes present in the Internet Routing Table: 17407
RIPE Prefixes per ASN: 7.05
RIPE Region origin ASes announcing only one prefix: 8276
RIPE Region transit ASes present in the Internet Routing Table: 2780
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 24
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1
Number of RIPE addresses announced to Internet: 657121024
Equivalent to 39 /8s, 42 /16s and 223 /24s
Percentage of available RIPE address space announced: 95.5
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
59392-61439, 61952-62463, 196608-200191
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,
141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
193/8, 194/8, 195/8, 212/8, 213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 50967
Total LACNIC prefixes after maximum aggregation: 9600
LACNIC Deaggregation factor: 5.31
Prefixes being announced from the LACNIC address blocks: 55765
Unique aggregates announced from the LACNIC address blocks: 26050
LACNIC Region origin ASes present in the Internet Routing Table: 2004
LACNIC Prefixes per ASN: 27.83
LACNIC Region origin ASes announcing only one prefix: 567
LACNIC Region transit ASes present in the Internet Routing Table: 359
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 2
Number of LACNIC addresses announced to Internet: 138972160
Equivalent to 8 /8s, 72 /16s and 140 /24s
Percentage of available LACNIC address space announced: 82.8
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 262144-263679 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
191/8, 200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 11254
Total AfriNIC prefixes after maximum aggregation: 2564
AfriNIC Deaggregation factor: 4.39
Prefixes being announced from the AfriNIC address blocks: 11866
Unique aggregates announced from the AfriNIC address blocks: 4012
AfriNIC Region origin ASes present in the Internet Routing Table: 660
AfriNIC Prefixes per ASN: 17.98
AfriNIC Region origin ASes announcing only one prefix: 196
AfriNIC Region transit ASes present in the Internet Routing Table: 131
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1
Number of AfriNIC addresses announced to Internet: 46553856
Equivalent to 2 /8s, 198 /16s and 91 /24s
Percentage of available AfriNIC address space announced: 46.2
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
17974 2676 903 91 >>UNKNOWN<<
4766 2120 11553 622 Korea Telecom
7545 2070 321 112 TPG Telecom Limited
4755 1801 403 192 TATA Communications formerly
9829 1548 1237 45 >>UNKNOWN<<
9583 1230 92 508 Sify Limited
9498 1188 309 72 BHARTI Airtel Ltd.
7552 1152 1080 13 >>UNKNOWN<<
24560 1089 380 164 >>UNKNOWN<<
4808 1073 2023 313 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 3067 3689 62 BellSouth.net Inc.
18566 2063 382 183 Covad Communications Co.
22773 2044 2933 125 >>UNKNOWN<<
1785 2012 679 125 >>UNKNOWN<<
20115 1678 1649 629 Charter Communications
4323 1617 1119 411 >>UNKNOWN<<
701 1529 11136 798 >>UNKNOWN<<
30036 1351 305 632 >>UNKNOWN<<
7018 1322 11293 835 >>UNKNOWN<<
11492 1222 218 365 >>UNKNOWN<<
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
8402 1674 544 16 >>UNKNOWN<<
34984 1330 244 220 >>UNKNOWN<<
20940 1031 382 793 >>UNKNOWN<<
31148 986 43 16 >>UNKNOWN<<
6830 895 2367 427 >>UNKNOWN<<
13188 847 99 70 >>UNKNOWN<<
8551 761 370 41 Bezeqint Internet Backbone
12479 673 797 53 >>UNKNOWN<<
9116 553 326 34 >>UNKNOWN<<
35228 526 246 16 >>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
28573 3266 1726 95 >>UNKNOWN<<
10620 2560 418 246 >>UNKNOWN<<
7303 1711 1134 227 >>UNKNOWN<<
18881 1432 844 20 >>UNKNOWN<<
8151 1268 2775 390 >>UNKNOWN<<
11830 865 364 15 >>UNKNOWN<<
6503 818 434 65 Axtel, S.A.B. de C.V.
27947 809 94 95 Telconet S.A
7738 779 1498 36 >>UNKNOWN<<
6147 739 376 21 Telefonica del Peru S.A.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
36998 1236 112 5 MOBITEL
24863 876 274 30 >>UNKNOWN<<
6713 554 633 26 Itissalat Al-MAGHRIB
8452 449 956 9 >>UNKNOWN<<
24835 291 80 8 >>UNKNOWN<<
3741 258 921 216 >>UNKNOWN<<
36992 222 501 28 >>UNKNOWN<<
15706 221 32 6 >>UNKNOWN<<
29571 221 17 12 >>UNKNOWN<<
29975 191 667 21 >>UNKNOWN<<
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
28573 3266 1726 95 >>UNKNOWN<<
6389 3067 3689 62 BellSouth.net Inc.
17974 2676 903 91 >>UNKNOWN<<
10620 2560 418 246 >>UNKNOWN<<
4766 2120 11553 622 Korea Telecom
7545 2070 321 112 TPG Telecom Limited
18566 2063 382 183 Covad Communications Co.
22773 2044 2933 125 >>UNKNOWN<<
1785 2012 679 125 >>UNKNOWN<<
4755 1801 403 192 TATA Communications formerly
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6389 3067 3005 BellSouth.net Inc.
17974 2676 2585 >>UNKNOWN<<
10620 2560 2314 >>UNKNOWN<<
7545 2070 1958 TPG Telecom Limited
22773 2044 1919 >>UNKNOWN<<
1785 2012 1887 >>UNKNOWN<<
18566 2063 1880 Covad Communications Co.
8402 1674 1658 >>UNKNOWN<<
4755 1801 1609 TATA Communications formerly
9829 1548 1503 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
16477 UNALLOCATED 1.232.49.0/24 4766 Korea Telecom
38423 UNALLOCATED 1.232.97.0/24 9318 Hanaro Telecom Inc.
9772 UNALLOCATED 1.232.171.0/24 4766 Korea Telecom
2385 UNALLOCATED 1.232.172.0/24 4766 Korea Telecom
38413 UNALLOCATED 1.233.22.0/24 4766 Korea Telecom
4665 UNALLOCATED 1.233.206.0/24 9318 Hanaro Telecom Inc.
4665 UNALLOCATED 1.233.206.0/23 9318 Hanaro Telecom Inc.
4665 UNALLOCATED 1.233.207.0/24 18302 >>UNKNOWN<<
4665 UNALLOCATED 1.233.208.0/21 9318 Hanaro Telecom Inc.
4665 UNALLOCATED 1.233.208.0/20 9318 Hanaro Telecom 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
10.1.1.48/29 0 *
100.64.0.0/10 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
192.0.0.0/24 65333 Internet Assigned Numbers Aut
192.0.2.0/24 65333 Internet Assigned Numbers Aut
192.168.0.0/16 0 *
198.18.0.0/15 65333 Internet Assigned Numbers Aut
198.51.100.0/24 65333 Internet Assigned Numbers Aut
Complete listing at http://thyme.rand.apnic.net/london/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
23.90.128.0/18 27418 >>UNKNOWN<<
23.90.192.0/18 36086 >>UNKNOWN<<
23.91.0.0/19 40676 >>UNKNOWN<<
23.91.32.0/19 36315 >>UNKNOWN<<
23.91.96.0/20 40676 >>UNKNOWN<<
23.91.112.0/21 32475 >>UNKNOWN<<
23.91.160.0/22 36493 FIBERNETICS CORPORATION
23.91.160.0/19 36493 FIBERNETICS CORPORATION
23.91.164.0/22 36493 FIBERNETICS CORPORATION
23.91.168.0/22 36493 FIBERNETICS CORPORATION
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 /8:17 /9:11 /10:32 /11:93 /12:251
/13:477 /14:913 /15:1625 /16:12758 /17:6716 /18:11107
/19:22910 /20:32553 /21:35005 /22:49106 /23:42497 /24:245202
/25:8 /26:11 /27:11 /28:128 /29:209 /30:136
/31:0 /32:135
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 2014 2063 Covad Communications Co.
6389 1712 3067 BellSouth.net Inc.
8402 1396 1674 >>UNKNOWN<<
22773 1331 2044 >>UNKNOWN<<
36998 1229 1236 MOBITEL
30036 1211 1351 >>UNKNOWN<<
11492 1183 1222 >>UNKNOWN<<
1785 1083 2012 >>UNKNOWN<<
6983 1025 1150 ITC^Deltacom
22561 930 1196 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:792 2:869 3:3 4:16 5:963 6:19
8:596 12:1890 13:3 14:842 15:11 16:3
17:11 18:19 20:21 23:398 24:1742 27:1569
31:1453 32:40 33:2 34:5 36:80 37:1838
38:900 39:3 40:179 41:2854 42:251 44:13
46:1988 47:6 49:670 50:793 52:12 54:37
55:6 57:29 58:1089 59:625 60:339 61:1476
62:1193 63:1983 64:4559 65:2362 66:4158 67:2087
68:1086 69:3286 70:864 71:494 72:2003 74:2555
75:328 76:303 77:1144 78:1046 79:618 80:1339
81:1028 82:640 83:580 84:580 85:1264 86:483
87:1053 88:556 89:1802 90:158 91:5671 92:606
93:1638 94:2001 95:1569 96:517 97:342 98:1040
99:41 100:30 101:356 103:3304 105:516 106:142
107:208 108:489 109:1881 110:956 111:1121 112:569
113:789 114:703 115:1032 116:959 117:800 118:1160
119:1263 120:348 121:853 122:1793 123:1249 124:1346
125:1422 128:583 129:212 130:308 131:664 132:344
133:162 134:529 135:67 136:269 137:264 138:348
139:177 140:179 141:314 142:538 143:401 144:498
145:99 146:513 147:482 148:671 149:352 150:154
151:585 152:412 153:195 154:46 155:484 156:273
157:371 158:285 159:676 160:351 161:429 162:676
163:208 164:622 165:562 166:259 167:611 168:1039
169:125 170:1084 171:192 172:25 173:1599 174:662
175:486 176:1180 177:2300 178:1890 179:132 180:1519
181:721 182:1260 183:460 184:624 185:854 186:2515
187:1461 188:1852 189:1321 190:7062 192:6873 193:5656
194:4059 195:3325 196:1365 197:1032 198:4619 199:5411
200:5994 201:2530 202:8787 203:8837 204:4452 205:2601
206:2755 207:2820 208:4003 209:3581 210:2854 211:1548
212:2304 213:2049 214:884 215:99 216:5269 217:1651
218:611 219:324 220:1274 221:558 222:324 223:496
End of report