* BGP Routing Table Analysis Reports *
Routing Table Report 08:00 +10GMT Mon 18 Jun, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 406925
Prefixes after maximum aggregation: 172948
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 201850
Total ASes present in the Internet Routing Table: 38680
Prefixes per ASN: 10.52
Origin-only ASes present in the Internet Routing Table: 33371
Origin ASes announcing only one prefix: 15704
Transit ASes present in the Internet Routing Table: 5309
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: 24
Max AS path prepend of ASN ( 36992) 22
Prefixes from unregistered ASNs in the Routing Table: 1185
Unregistered ASNs in the Routing Table: 230
Number of 32-bit ASNs allocated by the RIRs: 2854
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 6299
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 337
Number of addresses announced to Internet: 2586348544
Equivalent to 154 /8s, 40 /16s and 140 /24s
Percentage of available address space announced: 69.8
Percentage of allocated address space announced: 69.9
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: 140315
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 94907
Total APNIC prefixes after maximum aggregation: 31104
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 95890
Unique aggregates announced from the APNIC address blocks: 41811
APNIC Region origin ASes present in the Internet Routing Table: 4662
APNIC Prefixes per ASN: 20.57
APNIC Region origin ASes announcing only one prefix: 1274
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: 700818176
Equivalent to 41 /8s, 197 /16s and 163 /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: 150605
Total ARIN prefixes after maximum aggregation: 76651
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 151529
Unique aggregates announced from the ARIN address blocks: 68024
ARIN Region origin ASes present in the Internet Routing Table: 15109
ARIN Prefixes per ASN: 10.03
ARIN Region origin ASes announcing only one prefix: 5748
ARIN Region transit ASes present in the Internet Routing Table: 1516
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: 1080934656
Equivalent to 64 /8s, 109 /16s and 193 /24s
Percentage of available ARIN address space announced: 57.2
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: 103688
Total RIPE prefixes after maximum aggregation: 54769
RIPE Deaggregation factor: 1.89
Prefixes being announced from the RIPE address blocks: 105675
Unique aggregates announced from the RIPE address blocks: 66561
RIPE Region origin ASes present in the Internet Routing Table: 16615
RIPE Prefixes per ASN: 6.36
RIPE Region origin ASes announcing only one prefix: 8073
RIPE Region transit ASes present in the Internet Routing Table: 2597
Average RIPE Region AS path length visible: 3.4
Max RIPE Region AS path length visible: 22
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 630824448
Equivalent to 37 /8s, 153 /16s and 158 /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: 41484
Total LACNIC prefixes after maximum aggregation: 8209
LACNIC Deaggregation factor: 5.05
Prefixes being announced from the LACNIC address blocks: 43930
Unique aggregates announced from the LACNIC address blocks: 21885
LACNIC Region origin ASes present in the Internet Routing Table: 1594
LACNIC Prefixes per ASN: 27.56
LACNIC Region origin ASes announcing only one prefix: 440
LACNIC Region transit ASes present in the Internet Routing Table: 296
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: 110543872
Equivalent to 6 /8s, 150 /16s and 196 /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: 9123
Total AfriNIC prefixes after maximum aggregation: 2151
AfriNIC Deaggregation factor: 4.24
Prefixes being announced from the AfriNIC address blocks: 9563
Unique aggregates announced from the AfriNIC address blocks: 3261
AfriNIC Region origin ASes present in the Internet Routing Table: 546
AfriNIC Prefixes per ASN: 17.51
AfriNIC Region origin ASes announcing only one prefix: 169
AfriNIC Region transit ASes present in the Internet Routing Table: 119
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: 40471808
Equivalent to 2 /8s, 105 /16s and 141 /24s
Percentage of available AfriNIC address space announced: 40.2
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
4766 1991 11107 745 Korea Telecom (KIX)
17974 1831 531 82 PT Telekomunikasi Indonesia
7545 1681 301 86 TPG Internet Pty Ltd
4755 1569 384 152 TATA Communications formerly
9829 1297 1085 28 National Internet Backbone
9583 1183 89 509 Sify Limited
7552 1055 1062 11 Vietel Corporation
24560 1031 385 163 Bharti Airtel Ltd., Telemedia
9498 966 291 63 BHARTI Airtel Ltd.
4808 951 1940 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 3406 3791 192 BellSouth.net Inc.
7029 3337 1016 171 Windstream Communications Inc
18566 2092 382 181 Covad Communications Co.
1785 1920 681 132 PaeTec Communications, Inc.
22773 1648 2911 121 Cox Communications Inc.
20115 1643 1570 613 Charter Communications
4323 1570 1059 384 tw telecom holdings, inc.
30036 1438 267 745 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 1725 544 16 Corbina telecom
2118 1239 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 512 326 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 1936 1188 52 Types of queries are: POCs, o
6503 1519 418 67 Axtel, S.A.B. de C.V.
7303 1435 901 192 Telecom Argentina S.A.
8151 1343 3049 331 Uninet S.A. de C.V.
26615 900 696 35 Tim Celular S.A.
27947 682 74 87 Telconet S.A
11172 647 107 74 Alestra, S. de R.L. de C.V.
3816 587 245 92 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 1089 958 13 TEDATA
24863 851 274 32 LINKdotNET AS number
6713 497 649 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 160 664 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 3406 3791 192 BellSouth.net Inc.
7029 3337 1016 171 Windstream Communications Inc
18566 2092 382 181 Covad Communications Co.
4766 1991 11107 745 Korea Telecom (KIX)
10620 1966 342 205 Types of queries are: POCs, o
28573 1936 1188 52 Types of queries are: POCs, o
1785 1920 681 132 PaeTec Communications, Inc.
17974 1831 531 82 PT Telekomunikasi Indonesia
8402 1725 544 16 Corbina telecom
7545 1681 301 86 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 3337 3166 Windstream Communications Inc
18566 2092 1911 Covad Communications Co.
28573 1936 1884 Types of queries are: POCs, o
1785 1920 1788 PaeTec Communications, Inc.
10620 1966 1761 Types of queries are: POCs, o
17974 1831 1749 PT Telekomunikasi Indonesia
8402 1725 1709 Corbina telecom
7545 1681 1595 TPG Internet Pty Ltd
22773 1648 1527 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
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
27.112.114.0/24 23884 Proimage Engineering and Comm
41.188.64.0/18 29544 Mauritanian Telecommunication
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 /11:83 /12:236
/13:460 /14:832 /15:1505 /16:12253 /17:6301 /18:10598
/19:20657 /20:29409 /21:30865 /22:40299 /23:38256 /24:214552
/25:11 /26:19 /27:20 /28:151 /29:146 /30:76
/31:0 /32:134
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2677 3337 Windstream Communications Inc
18566 2041 2092 Covad Communications Co.
6389 1876 3406 BellSouth.net Inc.
8402 1424 1725 Corbina telecom
30036 1378 1438 Mediacom Communications Corp
11492 1152 1189 CABLE ONE, INC.
22773 1080 1648 Cox Communications Inc.
6503 1058 1519 Axtel, S.A.B. de C.V.
1785 1033 1920 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)
----------------------------------------------
1:556 2:744 3:1 4:13 5:60 6:3
8:425 12:1982 13:1 14:613 15:12 16:3
17:5 20:25 23:183 24:1772 27:1308 31:883
32:51 33:2 34:2 36:9 37:724 38:807
40:125 41:2996 42:136 44:3 46:1424 47:2
49:396 50:560 52:13 54:12 55:8 56:1
57:39 58:913 59:492 60:254 61:1109 62:1004
63:2034 64:4228 65:2247 66:4435 67:2004 68:1157
69:3168 70:977 71:509 72:1825 74:2598 75:478
76:329 77:931 78:974 79:492 80:1217 81:945
82:664 83:544 84:504 85:1178 86:431 87:931
88:338 89:1724 90:293 91:4938 92:571 93:1407
94:1589 95:1226 96:364 97:316 98:893 99:35
100:17 101:242 103:1153 106:103 107:186 108:316
109:1373 110:762 111:919 112:410 113:600 114:630
115:840 116:925 117:713 118:905 119:1195 120:342
121:676 122:1637 123:1094 124:1330 125:1242 128:526
129:193 130:245 131:630 132:276 133:22 134:234
135:61 136:213 137:236 138:333 139:189 140:468
141:252 142:398 143:318 144:512 145:73 146:505
147:292 148:750 149:313 150:150 151:181 152:470
153:174 154:15 155:462 156:220 157:336 158:188
159:554 160:345 161:244 162:351 163:178 164:632
165:410 166:588 167:473 168:910 169:126 170:883
171:138 172:4 173:1780 174:602 175:421 176:546
177:814 178:1453 180:1251 181:97 182:996 183:201
184:535 185:1 186:2339 187:1128 188:1348 189:1844
190:5634 192:5970 193:5535 194:4542 195:3402 196:1219
197:156 198:3621 199:4747 200:5800 201:1958 202:8385
203:8456 204:4271 205:2524 206:2721 207:2729 208:4030
209:3589 210:2706 211:1524 212:2036 213:1933 214:856
215:86 216:5073 217:1576 218:539 219:305 220:1240
221:552 222:287 223:348
End of report
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