* BGP Routing Table Analysis Reports *
Routing Table Report 08:00 +10GMT Fri 15 Jun, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 406686
Prefixes after maximum aggregation: 172959
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 201785
Total ASes present in the Internet Routing Table: 38661
Prefixes per ASN: 10.52
Origin-only ASes present in the Internet Routing Table: 33336
Origin ASes announcing only one prefix: 15706
Transit ASes present in the Internet Routing Table: 5325
Transit-only ASes present in the Internet Routing Table: 118
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 26
Max AS path prepend of ASN ( 51742) 24
Prefixes from unregistered ASNs in the Routing Table: 1183
Unregistered ASNs in the Routing Table: 229
Number of 32-bit ASNs allocated by the RIRs: 2836
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 6283
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 339
Number of addresses announced to Internet: 2584051712
Equivalent to 154 /8s, 5 /16s and 128 /24s
Percentage of available address space announced: 69.7
Percentage of allocated address space announced: 69.8
Percentage of available address space allocated: 99.9
Percentage of address space in use by end-sites: 92.9
Total number of prefixes smaller than registry allocations: 140121
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 94948
Total APNIC prefixes after maximum aggregation: 31096
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 95946
Unique aggregates announced from the APNIC address blocks: 41847
APNIC Region origin ASes present in the Internet Routing Table: 4663
APNIC Prefixes per ASN: 20.58
APNIC Region origin ASes announcing only one prefix: 1278
APNIC Region transit ASes present in the Internet Routing Table: 719
Average APNIC Region AS path length visible: 4.1
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: 700728832
Equivalent to 41 /8s, 196 /16s and 70 /24s
Percentage of available APNIC address space announced: 81.9
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 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: 150566
Total ARIN prefixes after maximum aggregation: 76750
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 151469
Unique aggregates announced from the ARIN address blocks: 68005
ARIN Region origin ASes present in the Internet Routing Table: 15105
ARIN Prefixes per ASN: 10.03
ARIN Region origin ASes announcing only one prefix: 5750
ARIN Region transit ASes present in the Internet Routing Table: 1518
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: 0
Number of ARIN addresses announced to Internet: 1078994944
Equivalent to 64 /8s, 80 /16s and 40 /24s
Percentage of available ARIN address space announced: 57.1
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, 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: 103497
Total RIPE prefixes after maximum aggregation: 54690
RIPE Deaggregation factor: 1.89
Prefixes being announced from the RIPE address blocks: 105494
Unique aggregates announced from the RIPE address blocks: 66506
RIPE Region origin ASes present in the Internet Routing Table: 16596
RIPE Prefixes per ASN: 6.36
RIPE Region origin ASes announcing only one prefix: 8064
RIPE Region transit ASes present in the Internet Routing Table: 2602
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 26
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 630527488
Equivalent to 37 /8s, 149 /16s and 22 /24s
Percentage of available RIPE address space announced: 91.7
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: 41397
Total LACNIC prefixes after maximum aggregation: 8201
LACNIC Deaggregation factor: 5.05
Prefixes being announced from the LACNIC address blocks: 43832
Unique aggregates announced from the LACNIC address blocks: 21848
LACNIC Region origin ASes present in the Internet Routing Table: 1596
LACNIC Prefixes per ASN: 27.46
LACNIC Region origin ASes announcing only one prefix: 442
LACNIC Region transit ASes present in the Internet Routing Table: 301
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: 110553088
Equivalent to 6 /8s, 150 /16s and 232 /24s
Percentage of available LACNIC address space announced: 65.9
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,
191/8, 200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 9161
Total AfriNIC prefixes after maximum aggregation: 2158
AfriNIC Deaggregation factor: 4.25
Prefixes being announced from the AfriNIC address blocks: 9605
Unique aggregates announced from the AfriNIC address blocks: 3269
AfriNIC Region origin ASes present in the Internet Routing Table: 547
AfriNIC Prefixes per ASN: 17.56
AfriNIC Region origin ASes announcing only one prefix: 172
AfriNIC Region transit ASes present in the Internet Routing Table: 122
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: 0
Number of AfriNIC addresses announced to Internet: 40409856
Equivalent to 2 /8s, 104 /16s and 155 /24s
Percentage of available AfriNIC address space announced: 40.1
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
4766 1988 11106 742 Korea Telecom (KIX)
17974 1830 530 81 PT Telekomunikasi Indonesia
7545 1679 301 84 TPG Internet Pty Ltd
4755 1568 384 152 TATA Communications formerly
9829 1299 1085 28 National Internet Backbone
9583 1175 87 502 Sify Limited
7552 1114 1062 11 Vietel Corporation
24560 1031 385 163 Bharti Airtel Ltd., Telemedia
9498 965 291 63 BHARTI Airtel Ltd.
4808 950 1938 283 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 3407 3791 192 BellSouth.net Inc.
7029 3330 1016 171 Windstream Communications Inc
18566 2092 382 181 Covad Communications Co.
1785 1919 681 131 PaeTec Communications, Inc.
22773 1647 2911 121 Cox Communications Inc.
20115 1642 1570 613 Charter Communications
4323 1572 1059 384 tw telecom holdings, inc.
30036 1427 265 754 Mediacom Communications Corp
7018 1234 10046 832 AT&T Services, Inc.
11492 1189 216 356 CABLE ONE, 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
8402 1706 544 16 Corbina telecom
2118 1226 97 14 EUnet/RELCOM Autonomous Syste
12479 741 713 90 France Telecom Espana SA
34984 708 188 172 BILISIM TELEKOM
31148 685 37 9 FreeNet ISP
20940 664 221 526 Akamai Technologies European
6830 659 2219 425 UPC Broadband
9116 540 326 31 Goldenlines main autonomous s
8551 502 364 61 Bezeq International
3320 489 8442 402 Deutsche Telekom AG
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 1966 342 205 Types of queries are: POCs, o
28573 1933 1188 52 Types of queries are: POCs, o
6503 1519 418 67 Axtel, S.A.B. de C.V.
7303 1439 901 194 Telecom Argentina S.A.
8151 1345 3049 332 Uninet S.A. de C.V.
26615 902 760 31 Tim Celular S.A.
27947 682 74 87 Telconet S.A
11172 648 107 75 Alestra, S. de R.L. de C.V.
3816 589 247 89 Types of queries are: POCs, o
14117 583 68 70 Telefonica del Sur S.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
8452 1139 958 13 TEDATA
24863 851 274 32 LINKdotNET AS number
6713 496 649 18 Itissalat Al-MAGHRIB
24835 321 80 8 RAYA Telecom - Egypt
3741 262 905 223 The Internet Solution
33776 210 12 21 Starcomms Nigeria Limited
12258 197 28 62 Vodacom Internet Company
29975 167 571 19 Vodacom
16637 159 664 88 MTN Network Solutions
29571 157 15 16 Ci Telecom Autonomous system
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 3407 3791 192 BellSouth.net Inc.
7029 3330 1016 171 Windstream Communications Inc
18566 2092 382 181 Covad Communications Co.
4766 1988 11106 742 Korea Telecom (KIX)
10620 1966 342 205 Types of queries are: POCs, o
28573 1933 1188 52 Types of queries are: POCs, o
1785 1919 681 131 PaeTec Communications, Inc.
17974 1830 530 81 PT Telekomunikasi Indonesia
8402 1706 544 16 Corbina telecom
7545 1679 301 84 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 3330 3159 Windstream Communications Inc
18566 2092 1911 Covad Communications Co.
28573 1933 1881 Types of queries are: POCs, o
1785 1919 1788 PaeTec Communications, Inc.
10620 1966 1761 Types of queries are: POCs, o
17974 1830 1749 PT Telekomunikasi Indonesia
8402 1706 1690 Corbina telecom
7545 1679 1595 TPG Internet Pty Ltd
22773 1647 1526 Cox Communications Inc.
6503 1519 1452 Axtel, S.A.B. de C.V.
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.
16504 UNALLOCATED 12.18.155.0/24 30170 Optic Fusion
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.
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T Services, Inc.
19577 UNALLOCATED 12.41.188.0/24 7832 WW/Precision Communi
13317 UNALLOCATED 12.44.10.0/24 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
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project
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 0 *
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
5.79.64.0/18 16265 LeaseWeb AS Macro
5.83.16.0/21 35362 Best ISP
14.192.0.0/22 45464 Room 201, TGU Bldg
14.192.4.0/22 45464 Room 201, TGU Bldg
14.192.8.0/22 45464 Room 201, TGU Bldg
14.192.12.0/22 45464 Room 201, TGU Bldg
14.192.16.0/22 45464 Room 201, TGU Bldg
14.192.20.0/22 45464 Room 201, TGU Bldg
14.192.24.0/22 45464 Room 201, TGU Bldg
14.192.28.0/22 45464 Room 201, TGU Bldg
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 /8:20 /9:13 /10:29 /11:82 /12:236
/13:460 /14:832 /15:1503 /16:12252 /17:6293 /18:10596
/19:20680 /20:29444 /21:30826 /22:40280 /23:38240 /24:214329
/25:11 /26:21 /27:19 /28:151 /29:149 /30:82
/31:0 /32:138
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2670 3330 Windstream Communications Inc
18566 2041 2092 Covad Communications Co.
6389 1877 3407 BellSouth.net Inc.
8402 1400 1706 Corbina telecom
30036 1367 1427 Mediacom Communications Corp
11492 1152 1189 CABLE ONE, INC.
22773 1079 1647 Cox Communications Inc.
6503 1058 1519 Axtel, S.A.B. de C.V.
1785 1032 1919 PaeTec Communications, Inc.
7011 926 1187 Frontier Communications of Am
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:558 2:720 3:1 4:13 5:59 6:3
8:424 12:1981 13:1 14:614 15:12 16:3
17:5 20:24 23:182 24:1773 27:1308 31:1007
32:51 33:2 34:2 36:9 37:719 38:805
40:127 41:2991 42:135 44:3 46:1422 47:2
49:396 50:560 52:13 54:12 55:10 56:1
57:29 58:916 59:490 60:253 61:1111 62:1008
63:2004 64:4229 65:2246 66:4443 67:2008 68:1158
69:3171 70:950 71:509 72:1826 74:2597 75:475
76:330 77:942 78:978 79:489 80:1222 81:944
82:665 83:536 84:507 85:1178 86:431 87:925
88:337 89:1723 90:292 91:4895 92:569 93:1381
94:1589 95:1228 96:362 97:315 98:901 99:35
100:17 101:242 103:1142 106:103 107:186 108:314
109:1371 110:763 111:907 112:408 113:594 114:630
115:838 116:925 117:713 118:909 119:1197 120:340
121:668 122:1642 123:1088 124:1326 125:1241 128:531
129:193 130:245 131:629 132:283 133:22 134:234
135:61 136:214 137:237 138:333 139:190 140:465
141:251 142:395 143:369 144:529 145:73 146:504
147:292 148:746 149:313 150:155 151:176 152:470
153:174 154:14 155:464 156:220 157:336 158:188
159:521 160:347 161:244 162:351 163:179 164:632
165:412 166:588 167:473 168:859 169:126 170:882
171:137 172:4 173:1777 174:601 175:419 176:541
177:816 178:1439 180:1249 181:97 182:996 183:228
184:534 185:1 186:2326 187:1107 188:1343 189:1844
190:5597 192:5965 193:5527 194:4537 195:3389 196:1223
197:152 198:3620 199:4738 200:5793 201:1953 202:8394
203:8462 204:4269 205:2524 206:2686 207:2729 208:4011
209:3599 210:2708 211:1524 212:2031 213:1933 214:869
215:89 216:5077 217:1573 218:539 219:306 220:1233
221:553 222:287 223:351
End of report
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