* BGP Routing Table Analysis Reports *
Routing Table Report 08:00 +10GMT Thu 13 Jun, 2013
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 449703
Prefixes after maximum aggregation: 183679
Deaggregation factor: 2.45
Unique aggregates announced to Internet: 225771
Total ASes present in the Internet Routing Table: 40448
Prefixes per ASN: 11.12
Origin-only ASes present in the Internet Routing Table: 34734
Origin ASes announcing only one prefix: 16186
Transit ASes present in the Internet Routing Table: 5706
Transit-only ASes present in the Internet Routing Table: 133
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 62
Max AS path prepend of ASN ( 56484) 51
Prefixes from unregistered ASNs in the Routing Table: 419167
Unregistered ASNs in the Routing Table: 34919
Number of 32-bit ASNs allocated by the RIRs: 4789
Number of 32-bit ASNs visible in the Routing Table: 8
Prefixes from 32-bit ASNs in the Routing Table: 10657
Special use prefixes present in the Routing Table: 32
Prefixes being announced from unallocated address space: 250
Number of addresses announced to Internet: 2646475008
Equivalent to 157 /8s, 190 /16s and 1 /24s
Percentage of available address space announced: 71.5
Percentage of allocated address space announced: 71.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 94.6
Total number of prefixes smaller than registry allocations: 156123
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 104366
Total APNIC prefixes after maximum aggregation: 32087
APNIC Deaggregation factor: 3.25
Prefixes being announced from the APNIC address blocks: 106465
Unique aggregates announced from the APNIC address blocks: 45082
APNIC Region origin ASes present in the Internet Routing Table: 4802
APNIC Prefixes per ASN: 22.17
APNIC Region origin ASes announcing only one prefix: 1241
APNIC Region transit ASes present in the Internet Routing Table: 783
Average APNIC Region AS path length visible: 3.9
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 1
Number of APNIC addresses announced to Internet: 723779328
Equivalent to 43 /8s, 35 /16s and 255 /24s
Percentage of available APNIC address space announced: 84.6
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-133119
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: 157463
Total ARIN prefixes after maximum aggregation: 79860
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 158073
Unique aggregates announced from the ARIN address blocks: 73825
ARIN Region origin ASes present in the Internet Routing Table: 15664
ARIN Prefixes per ASN: 10.09
ARIN Region origin ASes announcing only one prefix: 5971
ARIN Region transit ASes present in the Internet Routing Table: 1590
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 19
Number of ARIN region 32-bit ASNs visible in the Routing Table: 2
Number of ARIN addresses announced to Internet: 1065001216
Equivalent to 63 /8s, 122 /16s and 161 /24s
Percentage of available ARIN address space announced: 56.3
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: 117536
Total RIPE prefixes after maximum aggregation: 59946
RIPE Deaggregation factor: 1.96
Prefixes being announced from the RIPE address blocks: 121123
Unique aggregates announced from the RIPE address blocks: 77992
RIPE Region origin ASes present in the Internet Routing Table: 17225
RIPE Prefixes per ASN: 7.03
RIPE Region origin ASes announcing only one prefix: 8190
RIPE Region transit ASes present in the Internet Routing Table: 2781
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 62
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1
Number of RIPE addresses announced to Internet: 656560640
Equivalent to 39 /8s, 34 /16s and 82 /24s
Percentage of available RIPE address space announced: 95.4
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, 196608-199679
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: 48016
Total LACNIC prefixes after maximum aggregation: 9237
LACNIC Deaggregation factor: 5.20
Prefixes being announced from the LACNIC address blocks: 52270
Unique aggregates announced from the LACNIC address blocks: 24803
LACNIC Region origin ASes present in the Internet Routing Table: 1947
LACNIC Prefixes per ASN: 26.85
LACNIC Region origin ASes announcing only one prefix: 589
LACNIC Region transit ASes present in the Internet Routing Table: 353
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 17
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3
Number of LACNIC addresses announced to Internet: 131862528
Equivalent to 7 /8s, 220 /16s and 16 /24s
Percentage of available LACNIC address space announced: 78.6
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-62463, 262144-263167 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: 10930
Total AfriNIC prefixes after maximum aggregation: 2508
AfriNIC Deaggregation factor: 4.36
Prefixes being announced from the AfriNIC address blocks: 11521
Unique aggregates announced from the AfriNIC address blocks: 3839
AfriNIC Region origin ASes present in the Internet Routing Table: 641
AfriNIC Prefixes per ASN: 17.97
AfriNIC Region origin ASes announcing only one prefix: 195
AfriNIC Region transit ASes present in the Internet Routing Table: 129
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: 46658048
Equivalent to 2 /8s, 199 /16s and 242 /24s
Percentage of available AfriNIC address space announced: 46.4
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 2537 855 91 >>UNKNOWN<<
4766 2132 11553 623 >>UNKNOWN<<
7545 1994 320 108 TPG Telecom Limited
4755 1769 394 205 >>UNKNOWN<<
9829 1515 1205 40 >>UNKNOWN<<
9583 1211 91 506 >>UNKNOWN<<
7552 1150 1080 13 >>UNKNOWN<<
9498 1129 309 71 BHARTI Airtel Ltd.
24560 1077 394 164 >>UNKNOWN<<
4808 1057 2017 307 >>UNKNOWN<<
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 3012 3691 75 BellSouth.net Inc.
18566 2062 381 182 Covad Communications Co.
1785 1991 677 124 >>UNKNOWN<<
22773 1990 2929 125 >>UNKNOWN<<
20115 1663 1615 616 >>UNKNOWN<<
4323 1623 1154 405 >>UNKNOWN<<
701 1533 11143 800 >>UNKNOWN<<
30036 1327 297 643 >>UNKNOWN<<
7018 1314 11076 847 >>UNKNOWN<<
11492 1218 216 359 >>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 1640 544 16 >>UNKNOWN<<
34984 1269 241 217 >>UNKNOWN<<
2118 1069 97 13 >>UNKNOWN<<
20940 881 312 692 >>UNKNOWN<<
13188 824 98 78 >>UNKNOWN<<
8551 823 370 44 >>UNKNOWN<<
31148 815 41 25 >>UNKNOWN<<
6830 767 2376 441 >>UNKNOWN<<
34744 676 173 59 >>UNKNOWN<<
12479 666 779 67 >>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 2812 1557 111 >>UNKNOWN<<
10620 2651 417 219 >>UNKNOWN<<
7303 1732 1155 221 >>UNKNOWN<<
8151 1272 2727 396 >>UNKNOWN<<
18881 994 844 20 >>UNKNOWN<<
6503 875 435 67 >>UNKNOWN<<
27947 814 89 109 >>UNKNOWN<<
3816 718 307 87 >>UNKNOWN<<
7738 698 1370 35 >>UNKNOWN<<
6147 665 374 25 >>UNKNOWN<<
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 1117 80 4 >>UNKNOWN<<
24863 882 274 31 >>UNKNOWN<<
6713 542 617 25 >>UNKNOWN<<
8452 455 956 9 >>UNKNOWN<<
24835 345 80 8 >>UNKNOWN<<
3741 261 922 219 >>UNKNOWN<<
15706 222 32 6 >>UNKNOWN<<
29571 205 17 9 >>UNKNOWN<<
12258 193 28 67 >>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
6389 3012 3691 75 BellSouth.net Inc.
28573 2812 1557 111 >>UNKNOWN<<
10620 2651 417 219 >>UNKNOWN<<
17974 2537 855 91 >>UNKNOWN<<
4766 2132 11553 623 >>UNKNOWN<<
18566 2062 381 182 Covad Communications Co.
7545 1994 320 108 TPG Telecom Limited
1785 1991 677 124 >>UNKNOWN<<
22773 1990 2929 125 >>UNKNOWN<<
4755 1769 394 205 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
28573 2812 2701 >>UNKNOWN<<
17974 2537 2446 >>UNKNOWN<<
10620 2651 2432 >>UNKNOWN<<
7545 1994 1886 TPG Telecom Limited
18566 2062 1880 Covad Communications Co.
1785 1991 1867 >>UNKNOWN<<
22773 1990 1865 >>UNKNOWN<<
8402 1640 1624 >>UNKNOWN<<
4755 1769 1564 >>UNKNOWN<<
7303 1732 1511 >>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
9737 UNALLOCATED 1.0.128.0/18 38040 >>UNKNOWN<<
9737 UNALLOCATED 1.0.160.0/19 38040 >>UNKNOWN<<
9737 UNALLOCATED 1.0.192.0/18 38040 >>UNKNOWN<<
9737 UNALLOCATED 1.0.224.0/19 38040 >>UNKNOWN<<
9737 UNALLOCATED 1.1.128.0/17 38040 >>UNKNOWN<<
24151 UNALLOCATED 1.2.4.0/24 4641 >>UNKNOWN<<
9737 UNALLOCATED 1.2.128.0/17 38040 >>UNKNOWN<<
9737 UNALLOCATED 1.4.128.0/19 38040 >>UNKNOWN<<
9737 UNALLOCATED 1.4.128.0/17 38040 >>UNKNOWN<<
9737 UNALLOCATED 1.4.160.0/19 38040 >>UNKNOWN<<
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
128.0.0.0/24 2876 >>UNKNOWN<<
128.0.16.0/21 43568 >>UNKNOWN<<
128.0.24.0/21 41794 Sibirskie Seti Ltd.
128.0.46.0/23 39743 >>UNKNOWN<<
128.0.53.0/24 60993 >>UNKNOWN<<
128.0.54.0/24 60972 >>UNKNOWN<<
128.0.55.0/24 48571 efectRO SRL
128.0.57.0/24 60993 >>UNKNOWN<<
128.0.58.0/23 9050 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/london/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
62.61.220.0/24 24974 >>UNKNOWN<<
62.61.221.0/24 24974 >>UNKNOWN<<
64.185.224.0/24 27431 >>UNKNOWN<<
64.185.225.0/24 27431 >>UNKNOWN<<
64.185.226.0/24 27431 >>UNKNOWN<<
64.185.227.0/24 27431 >>UNKNOWN<<
64.185.228.0/24 27431 >>UNKNOWN<<
64.185.229.0/24 27431 >>UNKNOWN<<
64.185.230.0/24 27431 >>UNKNOWN<<
64.185.231.0/24 27431 >>UNKNOWN<<
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 /10:31 /11:91 /12:251
/13:482 /14:896 /15:1598 /16:12676 /17:6667 /18:11097
/19:22157 /20:32067 /21:34268 /22:47248 /23:41821 /24:237716
/25:7 /26:11 /27:12 /28:134 /29:202 /30:108
/31:0 /32:135
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 2013 2062 Covad Communications Co.
6389 1731 3012 BellSouth.net Inc.
8402 1337 1640 >>UNKNOWN<<
22773 1296 1990 >>UNKNOWN<<
30036 1196 1327 >>UNKNOWN<<
11492 1180 1218 >>UNKNOWN<<
36998 1111 1117 >>UNKNOWN<<
1785 1062 1991 >>UNKNOWN<<
6983 1011 1137 ITC^Deltacom
10620 990 2651 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:778 2:824 3:3 4:16 5:775 6:11
8:550 12:1924 13:3 14:806 15:11 16:3
17:10 20:17 23:368 24:1761 27:1470 31:1338
32:38 33:2 34:5 36:40 37:1858 38:870
39:2 40:171 41:2870 42:190 44:6 46:1930
47:2 49:656 50:720 52:12 54:35 55:7
57:30 58:1070 59:598 60:310 61:1464 62:1131
63:2026 64:4312 65:2157 66:4168 67:2057 68:1078
69:3243 70:788 71:486 72:1916 74:2471 75:322
76:302 77:1107 78:1015 79:614 80:1272 81:1009
82:632 83:577 84:541 85:1136 86:454 87:992
88:538 89:1759 90:150 91:5527 92:606 93:1658
94:1864 95:1652 96:514 97:345 98:1003 99:39
100:29 101:324 103:2748 105:445 106:146 107:207
108:496 109:1819 110:896 111:1044 112:542 113:814
114:687 115:1031 116:943 117:766 118:1081 119:1263
120:401 121:839 122:1752 123:1215 124:1332 125:1375
128:605 129:200 130:312 131:651 132:340 133:148
134:258 135:67 136:222 137:238 138:346 139:192
140:185 141:319 142:523 143:388 144:498 145:93
146:503 147:374 148:674 149:367 150:153 151:506
152:418 153:187 154:41 155:405 156:264 157:349
158:279 159:646 160:340 161:422 162:419 163:202
164:595 165:491 166:272 167:597 168:1022 169:129
170:1049 171:181 172:21 173:1572 174:543 175:454
176:953 177:2057 178:1871 179:29 180:1448 181:461
182:1209 183:380 184:694 185:536 186:2275 187:1297
188:2155 189:1252 190:6775 192:6628 193:5656 194:4587
195:3431 196:1355 197:916 198:4423 199:5290 200:5964
201:2214 202:8677 203:8819 204:4435 205:2562 206:2708
207:2779 208:4042 209:3600 210:2850 211:1501 212:2222
213:1976 214:929 215:98 216:5219 217:1618 218:606
219:351 220:1274 221:557 222:319 223:448
End of report
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