Routing Table Report 08:00 +10GMT Fri 08 Jun, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 405861
Prefixes after maximum aggregation: 172717
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 201550
Total ASes present in the Internet Routing Table: 38639
Prefixes per ASN: 10.50
Origin-only ASes present in the Internet Routing Table: 33332
Origin ASes announcing only one prefix: 15716
Transit ASes present in the Internet Routing Table: 5307
Transit-only ASes present in the Internet Routing Table: 116
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: 1176
Unregistered ASNs in the Routing Table: 231
Number of 32-bit ASNs allocated by the RIRs: 2810
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 6190
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 161
Number of addresses announced to Internet: 2578776064
Equivalent to 153 /8s, 181 /16s and 0 /24s
Percentage of available address space announced: 69.6
Percentage of allocated address space announced: 69.7
Percentage of available address space allocated: 99.9
Percentage of address space in use by end-sites: 92.8
Total number of prefixes smaller than registry allocations: 167058
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 94853
Total APNIC prefixes after maximum aggregation: 31080
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 92354
Unique aggregates announced from the APNIC address blocks: 40337
APNIC Region origin ASes present in the Internet Routing Table: 4654
APNIC Prefixes per ASN: 19.84
APNIC Region origin ASes announcing only one prefix: 1280
APNIC Region transit ASes present in the Internet Routing Table: 714
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: 646399232
Equivalent to 38 /8s, 135 /16s and 69 /24s
Percentage of available APNIC address space announced: 82.0
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, 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: 150261
Total ARIN prefixes after maximum aggregation: 76565
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 120896
Unique aggregates announced from the ARIN address blocks: 51338
ARIN Region origin ASes present in the Internet Routing Table: 15094
ARIN Prefixes per ASN: 8.01
ARIN Region origin ASes announcing only one prefix: 5753
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: 815555584
Equivalent to 48 /8s, 156 /16s and 100 /24s
Percentage of available ARIN address space announced: 65.0
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, 173/8,
174/8, 184/8, 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: 103118
Total RIPE prefixes after maximum aggregation: 54710
RIPE Deaggregation factor: 1.88
Prefixes being announced from the RIPE address blocks: 95130
Unique aggregates announced from the RIPE address blocks: 59815
RIPE Region origin ASes present in the Internet Routing Table: 16607
RIPE Prefixes per ASN: 5.73
RIPE Region origin ASes announcing only one prefix: 8073
RIPE Region transit ASes present in the Internet Routing Table: 2596
Average RIPE Region AS path length visible: 3.5
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: 515495168
Equivalent to 30 /8s, 185 /16s and 213 /24s
Percentage of available RIPE address space announced: 83.0
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,
176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 41215
Total LACNIC prefixes after maximum aggregation: 8130
LACNIC Deaggregation factor: 5.07
Prefixes being announced from the LACNIC address blocks: 41575
Unique aggregates announced from the LACNIC address blocks: 20603
LACNIC Region origin ASes present in the Internet Routing Table: 1589
LACNIC Prefixes per ASN: 26.16
LACNIC Region origin ASes announcing only one prefix: 443
LACNIC Region transit ASes present in the Internet Routing Table: 294
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: 101924864
Equivalent to 6 /8s, 19 /16s and 64 /24s
Percentage of available LACNIC address space announced: 67.5
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,
200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 9387
Total AfriNIC prefixes after maximum aggregation: 2168
AfriNIC Deaggregation factor: 4.33
Prefixes being announced from the AfriNIC address blocks: 7416
Unique aggregates announced from the AfriNIC address blocks: 2189
AfriNIC Region origin ASes present in the Internet Routing Table: 543
AfriNIC Prefixes per ASN: 13.66
AfriNIC Region origin ASes announcing only one prefix: 167
AfriNIC Region transit ASes present in the Internet Routing Table: 118
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: 31836672
Equivalent to 1 /8s, 229 /16s and 202 /24s
Percentage of available AfriNIC address space announced: 47.4
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1982 11104 732 Korea Telecom (KIX)
17974 1841 530 81 PT Telekomunikasi Indonesia
7545 1679 301 86 TPG Internet Pty Ltd
4755 1566 384 152 TATA Communications formerly
9829 1303 1085 28 National Internet Backbone
9583 1174 87 501 Sify Limited
7552 1132 1062 11 Vietel Corporation
24560 1027 385 165 Bharti Airtel Ltd., Telemedia
9498 964 291 64 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 3410 3791 193 BellSouth.net Inc.
7029 3382 1016 171 Windstream Communications Inc
18566 2092 382 181 Covad Communications Co.
1785 1916 681 131 PaeTec Communications, Inc.
20115 1647 1570 616 Charter Communications
22773 1643 2911 121 Cox Communications Inc.
4323 1570 1059 384 tw telecom holdings, inc.
30036 1425 265 753 Mediacom Communications Corp
7018 1231 10062 830 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 1637 544 16 Corbina telecom
2118 1226 97 14 EUnet/RELCOM Autonomous Syste
34984 705 188 171 BILISIM TELEKOM
12479 703 690 79 France Telecom Espana SA
31148 684 37 9 FreeNet ISP
20940 658 220 522 Akamai Technologies European
6830 655 2217 424 UPC Broadband
9116 540 326 31 Goldenlines main autonomous s
8551 505 364 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 1931 342 209 Types of queries are: POCs, o
28573 1924 1184 48 Types of queries are: POCs, o
6503 1524 418 67 Axtel, S.A.B. de C.V.
7303 1436 901 192 Telecom Argentina S.A.
8151 1351 3065 332 Uninet S.A. de C.V.
26615 902 760 32 Tim Celular S.A.
27947 669 73 94 Telconet S.A
11172 646 107 74 Alestra, S. de R.L. de C.V.
3816 587 247 89 Types of queries are: POCs, o
22047 583 326 15 Types of queries are: POCs, o
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 1387 958 13 TEDATA
24863 849 274 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
16637 160 666 87 MTN Network Solutions
29571 157 15 16 Ci Telecom Autonomous system
36923 157 20 4 Swift Networks Limited
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 3410 3791 193 BellSouth.net Inc.
7029 3382 1016 171 Windstream Communications Inc
18566 2092 382 181 Covad Communications Co.
4766 1982 11104 732 Korea Telecom (KIX)
10620 1931 342 209 Types of queries are: POCs, o
28573 1924 1184 48 Types of queries are: POCs, o
1785 1916 681 131 PaeTec Communications, Inc.
17974 1841 530 81 PT Telekomunikasi Indonesia
7545 1679 301 86 TPG Internet Pty Ltd
20115 1647 1570 616 Charter Communications
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 3382 3211 Windstream Communications Inc
18566 2092 1911 Covad Communications Co.
28573 1924 1876 Types of queries are: POCs, o
1785 1916 1785 PaeTec Communications, Inc.
17974 1841 1760 PT Telekomunikasi Indonesia
10620 1931 1722 Types of queries are: POCs, o
8402 1637 1621 Corbina telecom
7545 1679 1593 TPG Internet Pty Ltd
22773 1643 1522 Cox Communications Inc.
6503 1524 1457 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 /11:82 /12:236
/13:458 /14:829 /15:1501 /16:12222 /17:6266 /18:10526
/19:20655 /20:29385 /21:30698 /22:40261 /23:38158 /24:213948
/25:11 /26:21 /27:20 /28:152 /29:150 /30:81
/31:0 /32:139
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3021 3382 Windstream Communications Inc
6389 2129 3410 BellSouth.net Inc.
18566 2041 2092 Covad Communications Co.
8402 1615 1637 Corbina telecom
30036 1365 1425 Mediacom Communications Corp
6503 1213 1524 Axtel, S.A.B. de C.V.
8452 1186 1387 TEDATA
11492 1152 1189 CABLE ONE, INC.
22773 1088 1643 Cox Communications Inc.
7011 1073 1188 Frontier Communications of Am
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:553 2:683 3:1 4:13 5:51 6:3
8:424 12:1978 13:1 14:611 15:12 16:3
17:5 20:23 23:178 24:1772 27:1299 31:1007
32:51 33:2 34:2 36:9 37:680 38:806
40:123 41:3241 42:135 44:3 46:1432 47:2
49:398 50:552 52:13 54:12 55:11 56:1
57:27 58:911 59:491 60:253 61:1105 62:984
63:2000 64:4221 65:2241 66:4442 67:2015 68:1157
69:3176 70:952 71:508 72:1825 74:2584 75:480
76:327 77:947 78:971 79:488 80:1223 81:939
82:668 83:543 84:484 85:1181 86:440 87:911
88:337 89:1729 90:293 91:4911 92:556 93:1371
94:1570 95:1205 96:362 97:315 98:892 99:35
100:8 101:257 103:1102 106:95 107:186 108:312
109:1363 110:763 111:913 112:405 113:599 114:621
115:837 116:932 117:704 118:908 119:1197 120:351
121:677 122:1632 123:1096 124:1326 125:1258 128:522
129:196 130:243 131:627 132:281 133:22 134:232
135:61 136:213 137:236 138:358 139:184 140:467
141:251 142:398 143:418 144:532 145:72 146:504
147:286 148:754 149:309 150:157 151:179 152:467
153:174 154:13 155:459 156:219 157:336 158:186
159:504 160:343 161:239 162:346 163:179 164:630
165:400 166:591 167:470 168:859 169:126 170:878
171:136 172:4 173:1769 174:615 175:425 176:540
177:818 178:1395 180:1219 181:91 182:1028 183:227
184:528 185:1 186:2310 187:1117 188:1348 189:1820
190:5578 192:5936 193:5519 194:4527 195:3383 196:1218
197:147 198:3618 199:4714 200:5766 201:1942 202:8340
203:8485 204:4262 205:2482 206:2686 207:2731 208:4000
209:3589 210:2699 211:1523 212:2037 213:1938 214:871
215:99 216:5063 217:1556 218:540 219:306 220:1230
221:553 222:286 223:310
End of report