Routing Table Report 08:00 +10GMT Sun 15 Sep, 2013
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 462069
Prefixes after maximum aggregation: 187147
Deaggregation factor: 2.47
Unique aggregates announced to Internet: 231997
Total ASes present in the Internet Routing Table: 40935
Prefixes per ASN: 11.29
Origin-only ASes present in the Internet Routing Table: 35162
Origin ASes announcing only one prefix: 16316
Transit ASes present in the Internet Routing Table: 5766
Transit-only ASes present in the Internet Routing Table: 141
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 24
Max AS path prepend of ASN ( 36992) 22
Prefixes from unregistered ASNs in the Routing Table: 272054
Unregistered ASNs in the Routing Table: 21158
Number of 32-bit ASNs allocated by the RIRs: 5031
Number of 32-bit ASNs visible in the Routing Table: 7
Prefixes from 32-bit ASNs in the Routing Table: 12110
Special use prefixes present in the Routing Table: 10
Prefixes being announced from unallocated address space: 436
Number of addresses announced to Internet: 2663636736
Equivalent to 158 /8s, 195 /16s and 223 /24s
Percentage of available address space announced: 71.9
Percentage of allocated address space announced: 71.9
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: 161438
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 106899
Total APNIC prefixes after maximum aggregation: 32858
APNIC Deaggregation factor: 3.25
Prefixes being announced from the APNIC address blocks: 109499
Unique aggregates announced from the APNIC address blocks: 46513
APNIC Region origin ASes present in the Internet Routing Table: 4834
APNIC Prefixes per ASN: 22.65
APNIC Region origin ASes announcing only one prefix: 1240
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: 726818816
Equivalent to 43 /8s, 82 /16s and 96 /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: 160250
Total ARIN prefixes after maximum aggregation: 80786
ARIN Deaggregation factor: 1.98
Prefixes being announced from the ARIN address blocks: 160907
Unique aggregates announced from the ARIN address blocks: 75516
ARIN Region origin ASes present in the Internet Routing Table: 15824
ARIN Prefixes per ASN: 10.17
ARIN Region origin ASes announcing only one prefix: 6028
ARIN Region transit ASes present in the Internet Routing Table: 1600
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: 1070694400
Equivalent to 63 /8s, 209 /16s and 128 /24s
Percentage of available ARIN address space announced: 56.6
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: 119130
Total RIPE prefixes after maximum aggregation: 61241
RIPE Deaggregation factor: 1.95
Prefixes being announced from the RIPE address blocks: 122947
Unique aggregates announced from the RIPE address blocks: 79587
RIPE Region origin ASes present in the Internet Routing Table: 17419
RIPE Prefixes per ASN: 7.06
RIPE Region origin ASes announcing only one prefix: 8276
RIPE Region transit ASes present in the Internet Routing Table: 2776
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: 657252352
Equivalent to 39 /8s, 44 /16s and 224 /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: 50954
Total LACNIC prefixes after maximum aggregation: 9589
LACNIC Deaggregation factor: 5.31
Prefixes being announced from the LACNIC address blocks: 55718
Unique aggregates announced from the LACNIC address blocks: 25988
LACNIC Region origin ASes present in the Internet Routing Table: 2003
LACNIC Prefixes per ASN: 27.82
LACNIC Region origin ASes announcing only one prefix: 568
LACNIC Region transit ASes present in the Internet Routing Table: 362
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: 138759168
Equivalent to 8 /8s, 69 /16s and 76 /24s
Percentage of available LACNIC address space announced: 82.7
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: 11954
Total AfriNIC prefixes after maximum aggregation: 2613
AfriNIC Deaggregation factor: 4.57
Prefixes being announced from the AfriNIC address blocks: 12561
Unique aggregates announced from the AfriNIC address blocks: 3993
AfriNIC Region origin ASes present in the Internet Routing Table: 664
AfriNIC Prefixes per ASN: 18.92
AfriNIC Region origin ASes announcing only one prefix: 204
AfriNIC Region transit ASes present in the Internet Routing Table: 133
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: 46646528
Equivalent to 2 /8s, 199 /16s and 197 /24s
Percentage of available AfriNIC address space announced: 46.3
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 2677 903 91 >>UNKNOWN<<
4766 2120 11553 622 Korea Telecom
7545 2066 321 112 TPG Telecom Limited
4755 1804 403 195 TATA Communications formerly
9829 1540 1237 45 >>UNKNOWN<<
9583 1230 92 508 Sify Limited
9498 1188 309 72 BHARTI Airtel Ltd.
7552 1152 1080 13 >>UNKNOWN<<
24560 1090 394 163 >>UNKNOWN<<
4808 1072 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 3068 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 1619 1119 412 >>UNKNOWN<<
701 1530 11136 799 >>UNKNOWN<<
30036 1351 305 632 >>UNKNOWN<<
7018 1319 11293 832 >>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 1624 544 16 >>UNKNOWN<<
34984 1329 244 220 >>UNKNOWN<<
20940 1021 377 785 >>UNKNOWN<<
31148 985 43 20 >>UNKNOWN<<
6830 895 2367 427 >>UNKNOWN<<
13188 847 99 70 >>UNKNOWN<<
8551 763 370 41 Bezeqint Internet Backbone
12479 673 797 53 >>UNKNOWN<<
9116 553 326 34 >>UNKNOWN<<
58113 541 55 339 >>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 3253 1724 95 >>UNKNOWN<<
10620 2559 418 246 >>UNKNOWN<<
7303 1703 1131 228 >>UNKNOWN<<
18881 1430 844 20 >>UNKNOWN<<
8151 1276 2782 391 >>UNKNOWN<<
11830 865 364 15 >>UNKNOWN<<
27947 812 94 93 Telconet S.A
6503 807 434 64 Axtel, S.A.B. de C.V.
7738 779 1498 36 >>UNKNOWN<<
6147 740 376 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 1861 112 5 MOBITEL
24863 868 274 30 >>UNKNOWN<<
6713 554 633 26 Itissalat Al-MAGHRIB
8452 433 956 9 >>UNKNOWN<<
24835 291 80 8 >>UNKNOWN<<
3741 257 921 216 >>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 3253 1724 95 >>UNKNOWN<<
6389 3068 3689 62 BellSouth.net Inc.
17974 2677 903 91 >>UNKNOWN<<
10620 2559 418 246 >>UNKNOWN<<
4766 2120 11553 622 Korea Telecom
7545 2066 321 112 TPG Telecom Limited
18566 2063 382 183 Covad Communications Co.
22773 2044 2933 125 >>UNKNOWN<<
1785 2012 679 125 >>UNKNOWN<<
36998 1861 112 5 MOBITEL
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 3068 3006 BellSouth.net Inc.
17974 2677 2586 >>UNKNOWN<<
10620 2559 2313 >>UNKNOWN<<
7545 2066 1954 TPG Telecom Limited
22773 2044 1919 >>UNKNOWN<<
1785 2012 1887 >>UNKNOWN<<
18566 2063 1880 Covad Communications Co.
36998 1861 1856 MOBITEL
4755 1804 1609 TATA Communications formerly
8402 1624 1608 >>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
17873 UNALLOCATED 1.230.122.0/24 3786 LG DACOM Corporation
45980 UNALLOCATED 1.230.123.0/24 9318 Hanaro Telecom Inc.
45980 UNALLOCATED 1.230.124.0/24 9318 Hanaro Telecom Inc.
45980 UNALLOCATED 1.230.125.0/24 9318 Hanaro Telecom Inc.
45980 UNALLOCATED 1.230.126.0/24 9318 Hanaro Telecom Inc.
45980 UNALLOCATED 1.230.127.0/24 9318 Hanaro Telecom Inc.
45980 UNALLOCATED 1.230.128.0/24 9318 Hanaro Telecom Inc.
45980 UNALLOCATED 1.230.129.0/24 9318 Hanaro Telecom Inc.
45980 UNALLOCATED 1.230.130.0/24 9318 Hanaro Telecom Inc.
45980 UNALLOCATED 1.230.150.0/24 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
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
203.0.113.0/24 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 /16:12755 /17:6720 /18:11107
/19:22903 /20:32544 /21:34982 /22:49048 /23:42718 /24:245256
/25:8 /26:11 /27:11 /28:127 /29:195 /30:132
/31:0 /32:133
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 2014 2063 Covad Communications Co.
36998 1826 1861 MOBITEL
6389 1713 3068 BellSouth.net Inc.
8402 1350 1624 >>UNKNOWN<<
22773 1331 2044 >>UNKNOWN<<
30036 1211 1351 >>UNKNOWN<<
11492 1183 1222 >>UNKNOWN<<
1785 1083 2012 >>UNKNOWN<<
6983 1025 1150 ITC^Deltacom
7011 932 1175 Frontier Communications of Am
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:803 2:837 3:3 4:16 5:945 6:19
8:601 12:1887 13:3 14:844 15:11 16:3
17:11 18:19 20:20 23:389 24:1737 27:1553
31:1452 32:40 33:2 34:5 36:77 37:1845
38:898 39:3 40:179 41:3375 42:251 44:12
46:1981 47:6 49:670 50:790 52:12 54:37
55:5 57:29 58:1088 59:626 60:336 61:1478
62:1195 63:1984 64:4562 65:2361 66:4161 67:2070
68:1086 69:3285 70:865 71:495 72:2003 74:2556
75:327 76:302 77:1144 78:1042 79:622 80:1326
81:1030 82:651 83:582 84:581 85:1274 86:494
87:1051 88:555 89:1833 90:158 91:5662 92:604
93:1666 94:2021 95:1551 96:516 97:342 98:1037
99:41 100:30 101:356 103:3298 105:519 106:142
107:208 108:489 109:1878 110:941 111:1124 112:569
113:792 114:700 115:1031 116:958 117:798 118:1159
119:1268 120:352 121:849 122:1789 123:1252 124:1344
125:1421 128:576 129:212 130:308 131:667 132:340
133:161 134:277 135:67 136:270 137:264 138:348
139:175 140:172 141:314 142:538 143:389 144:498
145:95 146:531 147:478 148:670 149:359 150:152
151:601 152:413 153:195 154:46 155:502 156:271
157:369 158:285 159:673 160:349 161:425 162:655
163:207 164:619 165:560 166:259 167:608 168:1039
169:124 170:1082 171:194 172:25 173:1598 174:519
175:485 176:1186 177:2261 178:1885 179:120 180:1525
181:722 182:1263 183:459 184:627 185:830 186:2501
187:1457 188:1870 189:1305 190:7080 192:6860 193:5650
194:4063 195:3329 196:1395 197:1078 198:4604 199:5396
200:6004 201:2535 202:8777 203:8820 204:4449 205:2606
206:2753 207:2812 208:4001 209:3591 210:2847 211:1551
212:2292 213:2055 214:921 215:99 216:5274 217:1655
218:612 219:326 220:1274 221:558 222:320 223:494
End of report