The Border Gateway Protocol (BGP) is the protocol backing the core routing decisions on the Internet. It maintains a table of IP networks or 'prefixes' which designate network reachability among autonomous systems (AS). It is described as a path vector protocol. BGP does not use traditional Interior Gateway Protocol (IGP) metrics, but makes routing decisions based on path, network policies and/or rulesets. For this reason, it is more appropriately termed a reachability protocol rather than routing protocol.

Wednesday, September 4, 2013

[bgp-stats] Routing Table Report - London view

* BGP Routing Table Analysis Reports *
Routing Table Report 08:00 +10GMT Thu 05 Sep, 2013

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/

Analysis Summary
----------------

BGP routing table entries examined: 461370
Prefixes after maximum aggregation: 186486
Deaggregation factor: 2.47
Unique aggregates announced to Internet: 231434
Total ASes present in the Internet Routing Table: 40867
Prefixes per ASN: 11.29
Origin-only ASes present in the Internet Routing Table: 35086
Origin ASes announcing only one prefix: 16295
Transit ASes present in the Internet Routing Table: 5774
Transit-only ASes present in the Internet Routing Table: 145
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: 272593
Unregistered ASNs in the Routing Table: 21052
Number of 32-bit ASNs allocated by the RIRs: 4999
Number of 32-bit ASNs visible in the Routing Table: 7
Prefixes from 32-bit ASNs in the Routing Table: 11866
Special use prefixes present in the Routing Table: 10
Prefixes being announced from unallocated address space: 378
Number of addresses announced to Internet: 2660281088
Equivalent to 158 /8s, 144 /16s and 171 /24s
Percentage of available address space announced: 71.9
Percentage of allocated address space announced: 71.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 95.0
Total number of prefixes smaller than registry allocations: 160929

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 106593
Total APNIC prefixes after maximum aggregation: 32760
APNIC Deaggregation factor: 3.25
Prefixes being announced from the APNIC address blocks: 109148
Unique aggregates announced from the APNIC address blocks: 46616
APNIC Region origin ASes present in the Internet Routing Table: 4835
APNIC Prefixes per ASN: 22.57
APNIC Region origin ASes announcing only one prefix: 1245
APNIC Region transit ASes present in the Internet Routing Table: 815
Average APNIC Region AS path length visible: 3.8
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: 726607104
Equivalent to 43 /8s, 79 /16s and 37 /24s
Percentage of available APNIC address space announced: 84.9

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: 159997
Total ARIN prefixes after maximum aggregation: 80552
ARIN Deaggregation factor: 1.99
Prefixes being announced from the ARIN address blocks: 160651
Unique aggregates announced from the ARIN address blocks: 75422
ARIN Region origin ASes present in the Internet Routing Table: 15807
ARIN Prefixes per ASN: 10.16
ARIN Region origin ASes announcing only one prefix: 6025
ARIN Region transit ASes present in the Internet Routing Table: 1602
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 2
Number of ARIN addresses announced to Internet: 1070973952
Equivalent to 63 /8s, 213 /16s and 196 /24s
Percentage of available ARIN address space announced: 56.7

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: 119973
Total RIPE prefixes after maximum aggregation: 61069
RIPE Deaggregation factor: 1.96
Prefixes being announced from the RIPE address blocks: 123825
Unique aggregates announced from the RIPE address blocks: 79366
RIPE Region origin ASes present in the Internet Routing Table: 17386
RIPE Prefixes per ASN: 7.12
RIPE Region origin ASes announcing only one prefix: 8256
RIPE Region transit ASes present in the Internet Routing Table: 2786
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 21
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1
Number of RIPE addresses announced to Internet: 657291008
Equivalent to 39 /8s, 45 /16s and 119 /24s
Percentage of available RIPE address space announced: 95.6

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: 50476
Total LACNIC prefixes after maximum aggregation: 9530
LACNIC Deaggregation factor: 5.30
Prefixes being announced from the LACNIC address blocks: 55070
Unique aggregates announced from the LACNIC address blocks: 25792
LACNIC Region origin ASes present in the Internet Routing Table: 1994
LACNIC Prefixes per ASN: 27.62
LACNIC Region origin ASes announcing only one prefix: 569
LACNIC Region transit ASes present in the Internet Routing Table: 364
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 2
Number of LACNIC addresses announced to Internet: 135840768
Equivalent to 8 /8s, 24 /16s and 196 /24s
Percentage of available LACNIC address space announced: 81.0

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 262144-263679 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: 11692
Total AfriNIC prefixes after maximum aggregation: 2526
AfriNIC Deaggregation factor: 4.63
Prefixes being announced from the AfriNIC address blocks: 12297
Unique aggregates announced from the AfriNIC address blocks: 3885
AfriNIC Region origin ASes present in the Internet Routing Table: 658
AfriNIC Prefixes per ASN: 18.69
AfriNIC Region origin ASes announcing only one prefix: 200
AfriNIC Region transit ASes present in the Internet Routing Table: 132
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: 1
Number of AfriNIC addresses announced to Internet: 46529536
Equivalent to 2 /8s, 197 /16s and 252 /24s
Percentage of available AfriNIC address space announced: 46.2

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
17974 2672 903 91 >>UNKNOWN<<
4766 2119 11553 622 Korea Telecom
7545 2061 320 113 TPG Telecom Limited
4755 1797 401 194 TATA Communications formerly
9829 1547 1237 46 >>UNKNOWN<<
9583 1225 92 509 Sify Limited
9498 1183 309 71 BHARTI Airtel Ltd.
7552 1128 1080 13 >>UNKNOWN<<
24560 1089 394 160 >>UNKNOWN<<
4808 1072 2023 313 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 3069 3689 62 BellSouth.net Inc.
18566 2063 382 183 Covad Communications Co.
22773 2045 2933 126 >>UNKNOWN<<
1785 2008 679 125 >>UNKNOWN<<
20115 1675 1645 630 Charter Communications
4323 1625 1119 410 >>UNKNOWN<<
701 1520 11119 798 >>UNKNOWN<<
30036 1348 302 643 >>UNKNOWN<<
7018 1324 11310 838 >>UNKNOWN<<
11492 1220 218 366 >>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 1653 544 16 >>UNKNOWN<<
34984 1312 244 221 >>UNKNOWN<<
2118 1178 97 13 >>UNKNOWN<<
20940 983 355 761 >>UNKNOWN<<
31148 982 43 18 >>UNKNOWN<<
6830 895 2367 428 >>UNKNOWN<<
13188 846 99 72 >>UNKNOWN<<
8551 795 370 41 Bezeqint Internet Backbone
12479 687 797 53 >>UNKNOWN<<
9116 553 326 34 >>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 3227 1707 96 >>UNKNOWN<<
10620 2527 414 268 >>UNKNOWN<<
7303 1733 1158 223 >>UNKNOWN<<
18881 1424 844 20 >>UNKNOWN<<
8151 1270 2770 389 >>UNKNOWN<<
11830 933 364 15 >>UNKNOWN<<
27947 811 95 92 Telconet S.A
6503 807 434 65 Axtel, S.A.B. de C.V.
6147 734 374 25 Telefonica del Peru S.A.A.
3816 727 303 85 >>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 1861 112 5 MOBITEL
24863 869 274 30 >>UNKNOWN<<
6713 543 633 26 Itissalat Al-MAGHRIB
8452 435 956 9 >>UNKNOWN<<
24835 291 80 8 >>UNKNOWN<<
3741 258 921 217 >>UNKNOWN<<
36992 222 501 28 >>UNKNOWN<<
15706 221 32 6 >>UNKNOWN<<
29571 220 17 12 >>UNKNOWN<<
12258 193 28 71 MWEB-12258

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
28573 3227 1707 96 >>UNKNOWN<<
6389 3069 3689 62 BellSouth.net Inc.
17974 2672 903 91 >>UNKNOWN<<
10620 2527 414 268 >>UNKNOWN<<
4766 2119 11553 622 Korea Telecom
18566 2063 382 183 Covad Communications Co.
7545 2061 320 113 TPG Telecom Limited
22773 2045 2933 126 >>UNKNOWN<<
1785 2008 679 125 >>UNKNOWN<<
36998 1861 112 5 MOBITEL

Complete listing at http://thyme.rand.apnic.net/london/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
6389 3069 3007 BellSouth.net Inc.
17974 2672 2581 >>UNKNOWN<<
10620 2527 2259 >>UNKNOWN<<
7545 2061 1948 TPG Telecom Limited
22773 2045 1919 >>UNKNOWN<<
1785 2008 1883 >>UNKNOWN<<
18566 2063 1880 Covad Communications Co.
36998 1861 1856 MOBITEL
8402 1653 1637 >>UNKNOWN<<
4755 1797 1603 TATA Communications formerly

Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
55586 UNALLOCATED 1.224.172.0/24 4766 Korea Telecom
55586 UNALLOCATED 1.224.172.0/22 9318 Hanaro Telecom Inc.
55586 UNALLOCATED 1.224.173.0/24 4766 Korea Telecom
55586 UNALLOCATED 1.224.174.0/24 4766 Korea Telecom
55586 UNALLOCATED 1.224.175.0/24 4766 Korea Telecom
55615 UNALLOCATED 1.224.187.0/24 4766 Korea Telecom
55615 UNALLOCATED 1.224.188.0/24 4766 Korea Telecom
55615 UNALLOCATED 1.224.189.0/24 4766 Korea Telecom
9647 UNALLOCATED 1.225.91.0/24 9318 Hanaro Telecom Inc.
9647 UNALLOCATED 1.225.92.0/24 9318 Hanaro Telecom 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
100.64.0.0/10 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
192.0.0.0/24 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
198.51.100.0/24 65333 Internet Assigned Numbers Aut
203.0.113.0/24 65333 Internet Assigned Numbers Aut

Complete listing at http://thyme.rand.apnic.net/london/data-dsua

Advertised Unallocated Addresses
--------------------------------

Network Origin AS Description
23.90.128.0/18 27418 >>UNKNOWN<<
23.90.192.0/18 36086 >>UNKNOWN<<
23.91.0.0/19 40676 >>UNKNOWN<<
23.91.32.0/19 36315 >>UNKNOWN<<
23.92.16.0/21 8001 >>UNKNOWN<<
23.92.24.0/22 6939 Hurricane Electric, Inc.
23.92.48.0/20 29761 >>UNKNOWN<<
23.92.64.0/24 54540 >>UNKNOWN<<
23.92.65.0/24 54540 >>UNKNOWN<<
23.92.66.0/24 54540 >>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 /11:93 /12:251
/13:477 /14:902 /15:1614 /16:12754 /17:6708 /18:11059
/19:22666 /20:32442 /21:34943 /22:48855 /23:42592 /24:245316
/25:7 /26:11 /27:11 /28:131 /29:207 /30:135
/31:0 /32:137

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
18566 2014 2063 Covad Communications Co.
36998 1826 1861 MOBITEL
6389 1714 3069 BellSouth.net Inc.
8402 1387 1653 >>UNKNOWN<<
22773 1331 2045 >>UNKNOWN<<
30036 1211 1348 >>UNKNOWN<<
11492 1181 1220 >>UNKNOWN<<
1785 1080 2008 >>UNKNOWN<<
6983 1025 1150 ITC^Deltacom
7011 933 1176 Frontier Communications of Am

Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:806 2:859 3:3 4:16 5:939 6:19
8:598 9:7 12:1894 13:2 14:846 15:11
16:3 17:11 18:19 20:18 23:374 24:1740
27:1558 31:1439 32:40 33:2 34:5 36:75
37:1863 38:893 39:4 40:179 41:3326 42:252
44:9 46:1959 47:5 49:665 50:806 52:12
54:37 55:4 57:29 58:1090 59:643 60:333
61:1472 62:1228 63:1988 64:4550 65:2306 66:4160
67:2061 68:1084 69:3289 70:863 71:494 72:2007
74:2539 75:329 76:304 77:1138 78:1047 79:625
80:1319 81:1023 82:653 83:580 84:579 85:1255
86:482 87:1050 88:557 89:1841 90:158 91:5620
92:605 93:1668 94:2023 95:1572 96:524 97:347
98:1039 99:41 100:28 101:347 103:3254 105:519
106:141 107:208 108:479 109:1862 110:951 111:1115
112:565 113:789 114:688 115:1024 116:959 117:794
118:1125 119:1277 120:353 121:849 122:1792 123:1251
124:1351 125:1419 128:570 129:203 130:299 131:649
132:344 133:161 134:276 135:67 136:270 137:264
138:347 139:175 140:168 141:312 142:537 143:382
144:487 145:100 146:526 147:482 148:675 149:354
150:151 151:581 152:414 153:195 154:30 155:480
156:271 157:359 158:282 159:667 160:350 161:432
162:630 163:202 164:623 165:554 166:256 167:605
168:1022 169:125 170:1075 171:192 172:25 173:1597
174:518 175:486 176:1182 177:2137 178:1909 179:114
180:1523 181:710 182:1251 183:426 184:635 185:804
186:2481 187:1423 188:1885 189:1289 190:7022 192:6849
193:5707 194:4652 195:3580 196:1336 197:1019 198:4597
199:5406 200:5996 201:2594 202:8743 203:8818 204:4450
205:2602 206:2748 207:2834 208:3993 209:3605 210:2849
211:1547 212:2308 213:2054 214:911 215:100 216:5258
217:1654 218:612 219:326 220:1273 221:557 222:323
223:501

End of report
_______________________________________________
bgp-stats mailing list
bgp-stats@lists.apnic.net
http://mailman.apnic.net/mailman/listinfo/bgp-stats
Posted by Admin at 3:36 PM

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)