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.

Friday, November 8, 2013

[bgp-stats] Routing Table Report - Hong Kong view

* BGP Routing Table Analysis Reports *
Routing Table Report 06:00 +10GMT Sat 09 Nov, 2013

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

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

BGP routing table entries examined: 467252
Prefixes after maximum aggregation: 187945
Deaggregation factor: 2.49
Unique aggregates announced to Internet: 233751
Total ASes present in the Internet Routing Table: 45309
Prefixes per ASN: 10.31
Origin-only ASes present in the Internet Routing Table: 35351
Origin ASes announcing only one prefix: 16279
Transit ASes present in the Internet Routing Table: 5839
Transit-only ASes present in the Internet Routing Table: 154
Average AS path length visible in the Internet Routing Table: 4.6
Max AS path length visible: 37
Max AS path prepend of ASN ( 55644) 31
Prefixes from unregistered ASNs in the Routing Table: 826
Unregistered ASNs in the Routing Table: 221
Number of 32-bit ASNs allocated by the RIRs: 5316
Number of 32-bit ASNs visible in the Routing Table: 4119
Prefixes from 32-bit ASNs in the Routing Table: 12842
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 989
Number of addresses announced to Internet: 2648123648
Equivalent to 157 /8s, 215 /16s and 41 /24s
Percentage of available address space announced: 71.5
Percentage of allocated address space announced: 71.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 95.1
Total number of prefixes smaller than registry allocations: 161970

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

Prefixes being announced by APNIC Region ASes: 109030
Total APNIC prefixes after maximum aggregation: 33149
APNIC Deaggregation factor: 3.29
Prefixes being announced from the APNIC address blocks: 111167
Unique aggregates announced from the APNIC address blocks: 47407
APNIC Region origin ASes present in the Internet Routing Table: 4840
APNIC Prefixes per ASN: 22.97
APNIC Region origin ASes announcing only one prefix: 1234
APNIC Region transit ASes present in the Internet Routing Table: 807
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 37
Number of APNIC region 32-bit ASNs visible in the Routing Table: 725
Number of APNIC addresses announced to Internet: 723965184
Equivalent to 43 /8s, 38 /16s and 213 /24s
Percentage of available APNIC address space announced: 84.6

APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-63999, 131072-133631
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: 162171
Total ARIN prefixes after maximum aggregation: 81388
ARIN Deaggregation factor: 1.99
Prefixes being announced from the ARIN address blocks: 163140
Unique aggregates announced from the ARIN address blocks: 75894
ARIN Region origin ASes present in the Internet Routing Table: 15902
ARIN Prefixes per ASN: 10.26
ARIN Region origin ASes announcing only one prefix: 6005
ARIN Region transit ASes present in the Internet Routing Table: 1632
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 20
Number of ARIN region 32-bit ASNs visible in the Routing Table: 34
Number of ARIN addresses announced to Internet: 1073228544
Equivalent to 63 /8s, 248 /16s and 43 /24s
Percentage of available ARIN address space announced: 56.8

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: 118488
Total RIPE prefixes after maximum aggregation: 60823
RIPE Deaggregation factor: 1.95
Prefixes being announced from the RIPE address blocks: 122157
Unique aggregates announced from the RIPE address blocks: 78697
RIPE Region origin ASes present in the Internet Routing Table: 17487
RIPE Prefixes per ASN: 6.99
RIPE Region origin ASes announcing only one prefix: 8293
RIPE Region transit ASes present in the Internet Routing Table: 2806
Average RIPE Region AS path length visible: 4.8
Max RIPE Region AS path length visible: 30
Number of RIPE region 32-bit ASNs visible in the Routing Table: 2465
Number of RIPE addresses announced to Internet: 656524544
Equivalent to 39 /8s, 33 /16s and 197 /24s
Percentage of available RIPE address space announced: 95.4

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, 61952-62463, 196608-200191
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: 52275
Total LACNIC prefixes after maximum aggregation: 9845
LACNIC Deaggregation factor: 5.31
Prefixes being announced from the LACNIC address blocks: 57387
Unique aggregates announced from the LACNIC address blocks: 26879
LACNIC Region origin ASes present in the Internet Routing Table: 2032
LACNIC Prefixes per ASN: 28.24
LACNIC Region origin ASes announcing only one prefix: 549
LACNIC Region transit ASes present in the Internet Routing Table: 392
Average LACNIC Region AS path length visible: 4.8
Max LACNIC Region AS path length visible: 22
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 889
Number of LACNIC addresses announced to Internet: 142718976
Equivalent to 8 /8s, 129 /16s and 184 /24s
Percentage of available LACNIC address space announced: 85.1

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: 11761
Total AfriNIC prefixes after maximum aggregation: 2599
AfriNIC Deaggregation factor: 4.53
Prefixes being announced from the AfriNIC address blocks: 12411
Unique aggregates announced from the AfriNIC address blocks: 4074
AfriNIC Region origin ASes present in the Internet Routing Table: 678
AfriNIC Prefixes per ASN: 18.31
AfriNIC Region origin ASes announcing only one prefix: 198
AfriNIC Region transit ASes present in the Internet Routing Table: 132
Average AfriNIC Region AS path length visible: 4.7
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 6
Number of AfriNIC addresses announced to Internet: 48102912
Equivalent to 2 /8s, 221 /16s and 254 /24s
Percentage of available AfriNIC address space announced: 47.8

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 2711 903 89 PT TELEKOMUNIKASI INDONESIA
4766 2137 11550 644 Korea Telecom (KIX)
7545 2101 319 111 TPG Internet Pty Ltd
4755 1788 391 188 TATA Communications formerly
9829 1543 1240 41 BSNL National Internet Backbo
4808 1281 2188 368 CNCGROUP IP network: China169
9498 1210 309 73 BHARTI Airtel Ltd.
9583 1190 91 513 Sify Limited
7552 1157 1080 13 Vietel Corporation
24560 1094 380 163 Bharti Airtel Ltd., Telemedia

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

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3054 3688 56 BellSouth.net Inc.
22773 2192 2939 138 Cox Communications, Inc.
18566 2056 379 178 MegaPath Corporation
1785 2029 683 126 PaeTec Communications, Inc.
20115 1683 1654 608 Charter Communications
4323 1641 1102 422 Time Warner Telecom
701 1505 11146 783 MCI Communications Services,
30036 1385 313 576 Mediacom Communications Corp
7018 1349 17796 882 AT&T WorldNet Services
6983 1294 756 579 ITC^Deltacom

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

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8402 1911 544 17 OJSC "Vimpelcom"
34984 1362 244 223 TELLCOM ILETISIM HIZMETLERI A
20940 1124 412 858 Akamai Technologies European
31148 1005 44 18 FreeNet ISP
13188 886 99 48 TOV "Bank-Inform"
6849 862 356 30 JSC UKRTELECOM,
8551 782 370 41 Bezeq International
6830 774 2328 426 UPC Distribution Services
12479 677 798 55 Uni2 Autonomous System
35228 542 246 16 Avatar Broadband Limited

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

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3433 1788 85 NET Servicos de Comunicao S.A
10620 2648 429 233 TVCABLE BOGOTA
7303 1727 1146 232 Telecom Argentina Stet-France
18881 1548 908 20 Global Village Telecom
8151 1354 2851 414 UniNet S.A. de C.V.
11830 866 364 15 Instituto Costarricense de El
27947 813 93 89 Telconet S.A
6503 787 434 61 AVANTEL, S.A.
7738 780 1498 36 Telecomunicacoes da Bahia S.A
26615 752 1749 26 Tim Brasil S.A.

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

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
36998 1864 112 5 Sudanese Mobile Telephone (ZA
24863 892 338 30 LINKdotNET AS number
6713 554 633 26 Itissalat Al-MAGHRIB
8452 412 956 9 TEDATA
24835 295 144 9 RAYA Telecom - Egypt
3741 256 921 214 The Internet Solution
36992 229 501 29 Etisalat MISR
29571 224 17 12 Ci Telecom Autonomous system
15706 221 32 6 Sudatel Internet Exchange Aut
29975 192 668 21 Vodacom

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

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3433 1788 85 NET Servicos de Comunicao S.A
6389 3054 3688 56 BellSouth.net Inc.
17974 2711 903 89 PT TELEKOMUNIKASI INDONESIA
10620 2648 429 233 TVCABLE BOGOTA
22773 2192 2939 138 Cox Communications, Inc.
4766 2137 11550 644 Korea Telecom (KIX)
7545 2101 319 111 TPG Internet Pty Ltd
18566 2056 379 178 MegaPath Corporation
1785 2029 683 126 PaeTec Communications, Inc.
8402 1911 544 17 OJSC "Vimpelcom"

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

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

ASN No of nets Net Savings Description
6389 3054 2998 BellSouth.net Inc.
17974 2711 2622 PT TELEKOMUNIKASI INDONESIA
10620 2648 2415 TVCABLE BOGOTA
22773 2192 2054 Cox Communications, Inc.
7545 2101 1990 TPG Internet Pty Ltd
1785 2029 1903 PaeTec Communications, Inc.
8402 1911 1894 OJSC "Vimpelcom"
18566 2056 1878 MegaPath Corporation
36998 1864 1859 Sudanese Mobile Telephone (ZA
4755 1788 1600 TATA Communications formerly

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

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

Bad AS Designation Network Transit AS Description
65010 PRIVATE 1.38.8.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.9.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.11.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.32.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.160.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.192.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.224.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.240.0/21 38266 Hutchison Essar Ltd.
62828 UNALLOCATED 8.21.130.0/24 3356 Level 3 Communicatio
62734 UNALLOCATED 8.31.128.0/24 3356 Level 3 Communicatio

Complete listing at http://thyme.rand.apnic.net/hk/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix Origin AS Description
0.0.0.0/0 4641 The Chinese University of Hon

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

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

Network Origin AS Description
23.90.128.0/18 27418 OUTOFWALL INC.
23.90.192.0/18 36086 Broad Communications Technolo
23.91.0.0/19 40676 Psychz Networks
23.91.4.0/24 40676 Psychz Networks
23.91.14.0/24 40676 Psychz Networks
23.91.32.0/19 36315 Servpac Inc.
23.91.80.0/20 21560 Capital Technology Services G
23.91.112.0/21 32475 MidPhase Inc.
23.91.160.0/19 36493 3757277 Canada Inc. (oa 295.c
23.91.160.0/22 36493 3757277 Canada Inc. (oa 295.c

Complete listing at http://thyme.rand.apnic.net/hk/data-add-IANA

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

!!Default route being announced!!

/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:16 /9:11 /10:30 /11:92 /12:254
/13:474 /14:917 /15:1603 /16:12772 /17:6704 /18:11185
/19:23045 /20:32691 /21:35461 /22:49641 /23:43548 /24:248776
/25:3 /26:5 /27:9 /28:7 /29:6 /30:0
/31:0 /32:1

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

ASN No of nets Total ann. Description
18566 2010 2056 MegaPath Corporation
36998 1829 1864 Sudanese Mobile Telephone (ZA
6389 1707 3054 BellSouth.net Inc.
8402 1577 1911 OJSC "Vimpelcom"
22773 1455 2192 Cox Communications, Inc.
30036 1231 1385 Mediacom Communications Corp
11492 1192 1232 Cable One
1785 1080 2029 PaeTec Communications, Inc.
6983 1034 1294 ITC^Deltacom
22561 972 1249 Digital Teleport, Inc

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

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

1:896 2:846 3:3 4:17 5:1022 6:21
8:616 12:1899 13:3 14:893 15:11 16:3
17:18 18:19 20:21 23:524 24:1742 27:1620
31:1497 32:45 33:2 34:5 36:82 37:1906
38:917 39:4 40:178 41:3247 42:228 44:14
46:2014 47:9 49:688 50:829 52:12 54:42
55:6 56:4 57:26 58:1087 59:573 60:375
61:1463 62:1228 63:1985 64:4357 65:2339 66:4145
67:2110 68:1107 69:3287 70:871 71:490 72:2039
74:2556 75:328 76:296 77:1169 78:1048 79:659
80:1298 81:1034 82:652 83:630 84:583 85:1253
86:381 87:1003 88:563 89:1558 90:149 91:5652
92:619 93:1595 94:2022 95:1605 96:511 97:345
98:1045 99:40 100:30 101:629 103:3526 105:527
106:131 107:213 108:534 109:1936 110:965 111:1110
112:589 113:805 114:746 115:1039 116:1001 117:818
118:1171 119:1264 120:363 121:748 122:1832 123:1260
124:1329 125:1438 128:673 129:229 130:329 131:665
132:365 133:157 134:555 135:67 136:279 137:242
138:350 139:177 140:197 141:332 142:541 143:397
144:488 145:88 146:528 147:405 148:778 149:368
150:138 151:587 152:409 153:206 154:51 155:468
156:289 157:420 158:278 159:688 160:360 161:457
162:836 163:226 164:626 165:584 166:258 167:634
168:1043 169:125 170:1119 171:182 172:27 173:1587
174:686 175:515 176:1306 177:2447 178:1957 179:206
180:1582 181:822 182:1340 183:467 184:668 185:1005
186:2645 187:1482 188:1861 189:1246 190:7106 192:7100
193:5421 194:4039 195:3355 196:1333 197:1062 198:4742
199:5475 200:6076 201:2462 202:8897 203:8870 204:4533
205:2645 206:2841 207:2833 208:3981 209:3657 210:2937
211:1558 212:2146 213:1984 214:896 215:91 216:5409
217:1684 218:625 219:321 220:1274 221:568 222:327
223:502

End of report
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