* BGP Routing Table Analysis Reports *
Routing Table Report 08:00 +10GMT Wed 12 Jun, 2013
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 449595
Prefixes after maximum aggregation: 183643
Deaggregation factor: 2.45
Unique aggregates announced to Internet: 225739
Total ASes present in the Internet Routing Table: 40431
Prefixes per ASN: 11.12
Origin-only ASes present in the Internet Routing Table: 34704
Origin ASes announcing only one prefix: 16174
Transit ASes present in the Internet Routing Table: 5719
Transit-only ASes present in the Internet Routing Table: 134
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: 439946
Unregistered ASNs in the Routing Table: 40034
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: 10658
Special use prefixes present in the Routing Table: 32
Prefixes being announced from unallocated address space: 244
Number of addresses announced to Internet: 2646464000
Equivalent to 157 /8s, 189 /16s and 214 /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: 156284
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 104450
Total APNIC prefixes after maximum aggregation: 32138
APNIC Deaggregation factor: 3.25
Prefixes being announced from the APNIC address blocks: 106552
Unique aggregates announced from the APNIC address blocks: 45069
APNIC Region origin ASes present in the Internet Routing Table: 4806
APNIC Prefixes per ASN: 22.17
APNIC Region origin ASes announcing only one prefix: 1242
APNIC Region transit ASes present in the Internet Routing Table: 790
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: 723836928
Equivalent to 43 /8s, 36 /16s and 224 /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: 157357
Total ARIN prefixes after maximum aggregation: 79839
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 157949
Unique aggregates announced from the ARIN address blocks: 73793
ARIN Region origin ASes present in the Internet Routing Table: 15659
ARIN Prefixes per ASN: 10.09
ARIN Region origin ASes announcing only one prefix: 5967
ARIN Region transit ASes present in the Internet Routing Table: 1589
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: 1064935936
Equivalent to 63 /8s, 121 /16s and 162 /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: 117509
Total RIPE prefixes after maximum aggregation: 59919
RIPE Deaggregation factor: 1.96
Prefixes being announced from the RIPE address blocks: 121126
Unique aggregates announced from the RIPE address blocks: 78036
RIPE Region origin ASes present in the Internet Routing Table: 17210
RIPE Prefixes per ASN: 7.04
RIPE Region origin ASes announcing only one prefix: 8180
RIPE Region transit ASes present in the Internet Routing Table: 2792
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: 656540416
Equivalent to 39 /8s, 34 /16s and 3 /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: 47927
Total LACNIC prefixes after maximum aggregation: 9197
LACNIC Deaggregation factor: 5.21
Prefixes being announced from the LACNIC address blocks: 52170
Unique aggregates announced from the LACNIC address blocks: 24780
LACNIC Region origin ASes present in the Internet Routing Table: 1949
LACNIC Prefixes per ASN: 26.77
LACNIC Region origin ASes announcing only one prefix: 593
LACNIC Region transit ASes present in the Internet Routing Table: 351
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 20
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3
Number of LACNIC addresses announced to Internet: 131871488
Equivalent to 7 /8s, 220 /16s and 51 /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: 10963
Total AfriNIC prefixes after maximum aggregation: 2507
AfriNIC Deaggregation factor: 4.37
Prefixes being announced from the AfriNIC address blocks: 11553
Unique aggregates announced from the AfriNIC address blocks: 3832
AfriNIC Region origin ASes present in the Internet Routing Table: 635
AfriNIC Prefixes per ASN: 18.19
AfriNIC Region origin ASes announcing only one prefix: 192
AfriNIC Region transit ASes present in the Internet Routing Table: 130
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 20
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1
Number of AfriNIC addresses announced to Internet: 46661376
Equivalent to 2 /8s, 199 /16s and 255 /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 2534 855 91 >>UNKNOWN<<
4766 2142 11551 627 >>UNKNOWN<<
7545 1993 320 108 TPG Telecom Limited
4755 1768 394 204 >>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 3014 3691 75 >>UNKNOWN<<
18566 2062 381 182 Covad Communications Co.
1785 1991 677 124 >>UNKNOWN<<
22773 1990 2929 125 >>UNKNOWN<<
20115 1663 1615 616 >>UNKNOWN<<
4323 1621 1154 404 >>UNKNOWN<<
701 1531 11143 801 >>UNKNOWN<<
30036 1327 297 643 >>UNKNOWN<<
7018 1312 11076 846 >>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 1642 544 16 >>UNKNOWN<<
34984 1267 241 217 >>UNKNOWN<<
2118 1069 97 13 >>UNKNOWN<<
20940 878 310 690 >>UNKNOWN<<
13188 824 98 78 >>UNKNOWN<<
8551 822 370 43 >>UNKNOWN<<
31148 797 40 24 >>UNKNOWN<<
6830 768 2376 442 >>UNKNOWN<<
34744 676 173 59 >>UNKNOWN<<
12479 667 779 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 2817 1557 111 >>UNKNOWN<<
10620 2656 418 213 >>UNKNOWN<<
7303 1732 1155 221 >>UNKNOWN<<
8151 1273 2727 396 >>UNKNOWN<<
18881 979 844 20 >>UNKNOWN<<
6503 875 435 67 >>UNKNOWN<<
27947 814 89 109 >>UNKNOWN<<
3816 717 307 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 1237 80 4 >>UNKNOWN<<
24863 886 274 32 >>UNKNOWN<<
6713 542 617 25 >>UNKNOWN<<
8452 453 956 9 >>UNKNOWN<<
3741 261 922 219 >>UNKNOWN<<
15706 222 32 6 >>UNKNOWN<<
29571 205 17 9 >>UNKNOWN<<
37054 196 11 5 >>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 3014 3691 75 >>UNKNOWN<<
28573 2817 1557 111 >>UNKNOWN<<
10620 2656 418 213 >>UNKNOWN<<
17974 2534 855 91 >>UNKNOWN<<
4766 2142 11551 627 >>UNKNOWN<<
18566 2062 381 182 Covad Communications Co.
7545 1993 320 108 TPG Telecom Limited
1785 1991 677 124 >>UNKNOWN<<
22773 1990 2929 125 >>UNKNOWN<<
4755 1768 394 204 >>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 2817 2706 >>UNKNOWN<<
10620 2656 2443 >>UNKNOWN<<
17974 2534 2443 >>UNKNOWN<<
7545 1993 1885 TPG Telecom Limited
18566 2062 1880 Covad Communications Co.
1785 1991 1867 >>UNKNOWN<<
22773 1990 1865 >>UNKNOWN<<
8402 1642 1626 >>UNKNOWN<<
4755 1768 1564 >>UNKNOWN<<
4766 2142 1515 >>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 1.1.128.0/17 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<<
9737 UNALLOCATED 1.4.192.0/19 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 >>UNKNOWN<<
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 >>UNKNOWN<<
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 /14:895 /15:1597 /16:12668 /17:6660 /18:11099
/19:22145 /20:32075 /21:34196 /22:47195 /23:41874 /24:237697
/25:7 /26:11 /27:12 /28:135 /29:201 /30:108
/31:0 /32:137
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 2013 2062 Covad Communications Co.
6389 1731 3014 >>UNKNOWN<<
8402 1340 1642 >>UNKNOWN<<
22773 1296 1990 >>UNKNOWN<<
36998 1231 1237 >>UNKNOWN<<
30036 1196 1327 >>UNKNOWN<<
11492 1180 1218 >>UNKNOWN<<
1785 1062 1991 >>UNKNOWN<<
6983 1011 1137 >>UNKNOWN<<
10620 990 2656 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:784 2:828 3:3 4:16 5:779 6:11
8:550 12:1926 13:3 14:808 15:11 16:3
17:10 20:17 23:368 24:1761 27:1474 31:1340
32:38 33:2 34:5 36:40 37:1856 38:865
39:2 40:170 41:2933 42:190 44:6 46:1910
47:2 49:644 50:710 52:12 54:34 55:6
57:30 58:1071 59:602 60:309 61:1464 62:1120
63:2027 64:4309 65:2159 66:4184 67:2040 68:1078
69:3251 70:788 71:485 72:1906 74:2473 75:322
76:302 77:1107 78:1017 79:614 80:1271 81:1009
82:629 83:566 84:538 85:1159 86:455 87:994
88:538 89:1756 90:147 91:5521 92:593 93:1643
94:1865 95:1626 96:514 97:344 98:1004 99:39
100:29 101:324 103:2747 105:517 106:146 107:208
108:493 109:1853 110:895 111:1043 112:537 113:811
114:688 115:1034 116:944 117:789 118:1083 119:1264
120:402 121:837 122:1748 123:1214 124:1331 125:1376
128:602 129:199 130:314 131:618 132:341 133:148
134:254 135:66 136:223 137:237 138:346 139:191
140:185 141:315 142:524 143:390 144:499 145:93
146:503 147:371 148:674 149:367 150:153 151:504
152:418 153:193 154:41 155:401 156:264 157:349
158:278 159:645 160:342 161:422 162:409 163:202
164:594 165:491 166:273 167:597 168:1021 169:129
170:1049 171:181 172:21 173:1576 174:541 175:458
176:958 177:2039 178:1859 179:29 180:1451 181:456
182:1209 183:381 184:695 185:533 186:2244 187:1294
188:2153 189:1256 190:6766 192:6587 193:5680 194:4587
195:3425 196:1332 197:978 198:4420 199:5288 200:5945
201:2227 202:8675 203:8823 204:4435 205:2562 206:2709
207:2777 208:4040 209:3599 210:2855 211:1501 212:2225
213:1984 214:931 215:97 216:5216 217:1612 218:606
219:351 220:1267 221:557 222:319 223:453
End of report
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