Routing Table Report 08:00 +10GMT Wed 09 Feb, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 340669
Prefixes after maximum aggregation: 155029
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 170700
Total ASes present in the Internet Routing Table: 35660
Prefixes per ASN: 9.55
Origin-only ASes present in the Internet Routing Table: 30854
Origin ASes announcing only one prefix: 14962
Transit ASes present in the Internet Routing Table: 4806
Transit-only ASes present in the Internet Routing Table: 108
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 25
Max AS path prepend of ASN (22394) 20
Prefixes from unregistered ASNs in the Routing Table: 1430
Unregistered ASNs in the Routing Table: 258
Number of 32-bit ASNs allocated by the RIRs: 1092
Prefixes from 32-bit ASNs in the Routing Table: 1664
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 200
Number of addresses announced to Internet: 2431803648
Equivalent to 144 /8s, 242 /16s and 97 /24s
Percentage of available address space announced: 65.6
Percentage of allocated address space announced: 65.6
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 88.2
Total number of prefixes smaller than registry allocations: 139371
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 81895
Total APNIC prefixes after maximum aggregation: 27917
APNIC Deaggregation factor: 2.93
Prefixes being announced from the APNIC address blocks: 79421
Unique aggregates announced from the APNIC address blocks: 35630
APNIC Region origin ASes present in the Internet Routing Table: 4267
APNIC Prefixes per ASN: 18.61
APNIC Region origin ASes announcing only one prefix: 1218
APNIC Region transit ASes present in the Internet Routing Table: 654
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 586584320
Equivalent to 34 /8s, 246 /16s and 145 /24s
Percentage of available APNIC address space announced: 74.4
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
55296-56319, 131072-132095
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: 135956
Total ARIN prefixes after maximum aggregation: 69685
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 108771
Unique aggregates announced from the ARIN address blocks: 44737
ARIN Region origin ASes present in the Internet Routing Table: 14094
ARIN Prefixes per ASN: 7.72
ARIN Region origin ASes announcing only one prefix: 5387
ARIN Region transit ASes present in the Internet Routing Table: 1386
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 752337152
Equivalent to 44 /8s, 215 /16s and 193 /24s
Percentage of available ARIN address space announced: 62.3
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, 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, 47/8, 48/8, 50/8, 52/8, 54/8,
55/8, 56/8, 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: 82079
Total RIPE prefixes after maximum aggregation: 46359
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 75383
Unique aggregates announced from the RIPE address blocks: 48788
RIPE Region origin ASes present in the Internet Routing Table: 15284
RIPE Prefixes per ASN: 4.93
RIPE Region origin ASes announcing only one prefix: 7785
RIPE Region transit ASes present in the Internet Routing Table: 2359
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 457707776
Equivalent to 27 /8s, 72 /16s and 17 /24s
Percentage of available RIPE address space announced: 73.7
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
196608-198655
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: 30957
Total LACNIC prefixes after maximum aggregation: 7240
LACNIC Deaggregation factor: 4.28
Prefixes being announced from the LACNIC address blocks: 29894
Unique aggregates announced from the LACNIC address blocks: 15926
LACNIC Region origin ASes present in the Internet Routing Table: 1414
LACNIC Prefixes per ASN: 21.14
LACNIC Region origin ASes announcing only one prefix: 440
LACNIC Region transit ASes present in the Internet Routing Table: 246
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 80368640
Equivalent to 4 /8s, 202 /16s and 84 /24s
Percentage of available LACNIC address space announced: 53.2
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: 7441
Total AfriNIC prefixes after maximum aggregation: 1852
AfriNIC Deaggregation factor: 4.02
Prefixes being announced from the AfriNIC address blocks: 5849
Unique aggregates announced from the AfriNIC address blocks: 1823
AfriNIC Region origin ASes present in the Internet Routing Table: 434
AfriNIC Prefixes per ASN: 13.48
AfriNIC Region origin ASes announcing only one prefix: 132
AfriNIC Region transit ASes present in the Internet Routing Table: 95
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 21870848
Equivalent to 1 /8s, 77 /16s and 185 /24s
Percentage of available AfriNIC address space announced: 32.6
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 1784 9485 518 Korea Telecom (KIX)
7545 1623 300 83 TPG Internet Pty Ltd
4755 1413 637 162 TATA Communications formerly
17974 1405 459 29 PT Telekomunikasi Indonesia
24560 1100 319 179 Bharti Airtel Ltd., Telemedia
9583 1044 76 487 Sify Limited
17488 952 162 104 Hathway IP Over Cable Interne
4808 935 2034 270 CNCGROUP IP network China169
18101 927 117 142 Reliance Infocom Ltd Internet
9829 874 748 59 National Internet Backbone
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 3713 3855 266 BellSouth.net Inc.
4323 2622 1125 404 tw telecom holdings, inc.
19262 1842 4951 283 Verizon Online LLC
1785 1789 697 132 PaeTec Communications, Inc.
20115 1523 1533 640 Charter Communications
6478 1482 291 81 AT&T Services, Inc.
7018 1371 6708 888 AT&T Services, Inc.
2386 1297 554 934 AT&T Data Communications Serv
22773 1277 2865 78 Cox Communications Inc.
11492 1265 235 79 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
9116 542 328 31 Goldenlines main autonomous s
6830 513 1764 318 UPC Broadband
9198 465 266 14 Kazakhtelecom Data Network Ad
34984 456 97 137 BILISIM TELEKOM
3292 444 1996 387 TDC Data Networks
8866 440 133 23 Bulgarian Telecommunication C
8551 405 355 38 Bezeq International
3320 404 7617 352 Deutsche Telekom AG
702 401 1819 314 >>UNKNOWN<<
20940 401 92 309 Akamai Technologies European
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 1374 255 164 Types of queries are: POCs, o
28573 1224 961 82 Types of queries are: POCs, o
8151 1207 2629 357 Uninet S.A. de C.V.
6503 1178 355 79 Axtel, S.A.B. de C.V.
7303 864 446 128 Telecom Argentina S.A.
14420 638 57 92 CORPORACION NACIONAL DE TELEC
22047 543 310 15 Types of queries are: POCs, o
3816 502 220 95 Types of queries are: POCs, o
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 457 34 32 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 780 445 11 TEDATA
24863 760 147 37 LINKdotNET AS number
36992 594 313 20 Etisalat MISR
3741 264 987 226 The Internet Solution
24835 218 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
33776 194 12 15 Starcomms Nigeria Limited
29571 192 17 11 Ci Telecom Autonomous system
16637 147 422 84 MTN Network Solutions
29975 132 490 17 Vodacom
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 3713 3855 266 BellSouth.net Inc.
4323 2622 1125 404 tw telecom holdings, inc.
19262 1842 4951 283 Verizon Online LLC
1785 1789 697 132 PaeTec Communications, Inc.
4766 1784 9485 518 Korea Telecom (KIX)
23456 1664 420 933 32-bit ASN transition
7545 1623 300 83 TPG Internet Pty Ltd
20115 1523 1533 640 Charter Communications
6478 1482 291 81 AT&T Services, Inc.
4755 1413 637 162 TATA Communications formerly
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 2622 2218 tw telecom holdings, inc.
1785 1789 1657 PaeTec Communications, Inc.
19262 1842 1559 Verizon Online LLC
7545 1623 1540 TPG Internet Pty Ltd
6478 1482 1401 AT&T Services, Inc.
17974 1405 1376 PT Telekomunikasi Indonesia
4766 1784 1266 Korea Telecom (KIX)
4755 1413 1251 TATA Communications formerly
10620 1374 1210 Types of queries are: POCs, o
22773 1277 1199 Cox Communications Inc.
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 *
16927 UNALLOCATED 12.0.252.0/23 7018 AT&T Services, Inc.
32805 UNALLOCATED 12.1.225.0/24 7018 AT&T Services, Inc.
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T Services, Inc.
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T Services, Inc.
16504 UNALLOCATED 12.18.155.0/24 30170 Optic Fusion
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T Services, Inc.
32567 UNALLOCATED 12.25.107.0/24 4323 tw telecom holdings,
30031 UNALLOCATED 12.27.122.0/24 7018 AT&T Services, Inc.
26095 UNALLOCATED 12.34.8.0/24 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
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
5.0.0.0/16 12654 RIPE NCC RIS Project
5.1.0.0/21 12654 RIPE NCC RIS Project
5.1.24.0/24 12654 RIPE NCC RIS Project
24.129.192.0/19 7922 Comcast Cable Communications,
31.144.0.0/16 21497 UMC Autonomous System
37.0.0.0/16 12654 RIPE NCC RIS Project
37.1.0.0/21 12654 RIPE NCC RIS Project
37.1.24.0/24 12654 RIPE NCC RIS Project
39.0.0.0/8 237 Merit Network Inc.
41.222.79.0/24 36938 >>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 /8:22 /9:11 /10:26 /11:72 /12:222
/13:444 /14:770 /15:1370 /16:11511 /17:5619 /18:9292
/19:18902 /20:24301 /21:24597 /22:32736 /23:31351 /24:178969
/25:11 /26:17 /27:24 /28:157 /29:91 /30:43
/31:0 /32:111
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2290 3713 BellSouth.net Inc.
6478 1436 1482 AT&T Services, Inc.
4323 1410 2622 tw telecom holdings, inc.
10620 1265 1374 Types of queries are: POCs, o
11492 1222 1265 CABLE ONE, INC.
18566 1157 1179 Covad Communications Co.
7011 1062 1165 Frontier Communications of Am
1785 1055 1789 PaeTec Communications, Inc.
23456 976 1664 32-bit ASN transition
6503 955 1178 Axtel, S.A.B. de C.V.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:173 2:44 4:13 5:1 8:333 12:2027
13:1 14:393 15:15 16:3 17:8 20:9
23:1 24:1469 27:572 32:57 33:5 34:2
37:1 38:694 40:101 41:2269 44:3 46:556
47:5 49:145 50:82 52:12 55:3 56:2
57:28 58:762 59:481 60:389 61:1018 62:1090
63:1923 64:3726 65:2356 66:4126 67:1760 68:1007
69:2882 70:715 71:396 72:1996 73:1 74:2319
75:293 76:342 77:867 78:703 79:443 80:1043
81:825 82:536 83:473 84:649 85:1052 86:536
87:753 88:357 89:1573 90:156 91:3472 92:493
93:1048 94:1201 95:796 96:421 97:250 98:785
99:33 101:27 107:3 108:86 109:902 110:471
111:690 112:302 113:356 114:476 115:636 116:913
117:671 118:642 119:1007 120:238 121:679 122:1627
123:1057 124:1263 125:1213 128:212 129:147 130:167
131:565 132:102 133:20 134:210 135:49 136:213
137:144 138:290 139:116 140:467 141:197 142:341
143:379 144:473 145:51 146:417 147:191 148:612
149:273 150:158 151:231 152:303 153:177 154:2
155:346 156:173 157:313 158:128 159:373 160:314
161:195 162:277 163:151 164:486 165:336 166:497
167:421 168:734 169:149 170:747 171:68 172:2
173:1277 174:518 175:314 176:1 177:4 178:796
180:784 182:333 183:250 184:208 186:997 187:813
188:911 189:1050 190:4347 192:5743 193:4790 194:3500
195:2939 196:1172 197:3 198:3497 199:3741 200:5540
201:1569 202:8041 203:8331 204:4006 205:2317 206:2531
207:3004 208:3890 209:3473 210:2594 211:1323 212:1888
213:1726 214:754 215:61 216:4839 217:1618 218:516
219:372 220:1197 221:433 222:316 223:92
End of report
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